**To qualify you must work as an ML research engineer, research scientist or applied scientist, and have personally trained, fine-tuned or optimized models in PyTorch or JAX.**

## What you'll do

- Come up with ideas for hard machine learning engineering tasks ("plans") for a long-horizon AI research project with a leading AI lab
- Design tasks hard enough to stump frontier models: a strong task is solved in no more than 2 out of 8 attempts
- Lean toward inference, evaluation and systems work rather than heavy model training. About half of the tasks run on GPU and half are CPU-only
- Explain clearly why each problem is hard for a frontier model
- You mainly contribute ideas. You do not need to build or review the tasks yourself

## Must-haves

- Current or recent role as an ML research engineer, research scientist or applied scientist
- Hands-on experience personally training, fine-tuning or optimizing models in PyTorch or JAX
- Deep knowledge of at least one of these areas:
    - **LLMs:** pretraining, alignment, evals
    - **GPU inference and performance:** vLLM, Triton, CUDA, profiling
    - **Reinforcement learning (RL)**
    - **Scientific ML:** weather and climate, physics, biology
- Able to explain why a problem is hard for a frontier model

## Nice-to-haves

- Experience writing benchmark or evaluation questions (a big plus)
- PhD in ML, CS or physics, or an MSc plus strong research output
- Publications
- Prior Mercor contracts with strong performance

## Not a fit

- Software or full-stack engineers whose AI experience is mainly building LangChain or RAG applications
- Backgrounds limited to AI trainer, rater or annotator work

Machine Learning Expert

Mercor is seeking experienced **Clinical Research and Survey Methodology Experts** to support the development and refinement of physician-focused healthcare market research surveys. The ideal candidate combines **deep clinical expertise in specific diseases or therapeutic areas** with **hands-on experience in healthcare market research, survey design, and questionnaire development**. You will help ensure that surveys administered to healthcare professionals are clinically accurate, scientifically credible, appropriately structured, and relevant to real-world clinical practice. This is an opportunity for an ongoing collaboration across multiple therapeutic areas and research initiatives over the coming months.

## Key Responsibilities

- Design, develop, and refine physician-facing surveys across various diseases and therapeutic areas.
    
- Review survey questions for clinical accuracy, medical relevance, clarity, and appropriateness for the intended physician audience.
    
- Translate complex clinical concepts and research objectives into well-structured, unbiased survey questions.
    
- Apply established market research methodologies to improve questionnaire design, response options, survey flow, and data quality.
    
- Evaluate surveys for clinical terminology, treatment pathways, diagnostic criteria, patient management practices, and therapeutic relevance.
    
- Collaborate with research teams to incorporate feedback and maintain consistency across survey projects.
    
- Provide expert recommendations to improve survey validity, physician engagement, and overall research quality.
    

## Required Qualifications

- **Advanced clinical or scientific degree:** MD, DO, PhD, PharmD, or equivalent qualification in medicine, clinical research, or a closely related discipline.
    
- **Clinical expertise:** Strong understanding of specific diseases, therapeutic areas, treatment guidelines, and real-world clinical decision-making.
    
- **Healthcare market research experience:** Demonstrated experience designing, writing, reviewing, or validating healthcare professional (HCP) surveys.
    
- **Survey methodology:** Familiarity with questionnaire design, survey logic, response scales, question bias, and research best practices.
    
- Experience working with pharmaceutical companies, healthcare market research agencies, life sciences consulting firms, or clinical research organisations.
    
- Strong written communication skills and the ability to translate complex medical information into clear, actionable survey questions.
    

## Preferred Qualifications

- 3+ years of experience in healthcare market research, clinical survey development, or related research activities.
    
- Previous experience developing surveys targeting physicians, specialists, or other healthcare professionals.
    
- Familiarity with platforms such as Qualtrics, Forsta, Decipher, Alchemer, or SurveyMonkey.
    
- Experience in therapeutic-area-specific market research, including treatment journeys, prescribing behaviour, clinical decision-making, and unmet medical needs.
    
- Experience supporting multiple research studies across different disease areas.
    

## Why Join Mercor?

- **Ongoing Collaboration:** Opportunity to participate in multiple healthcare research projects over the coming months.
    
- **Apply Your Expertise:** Combine your clinical knowledge and research methodology experience to improve the quality of physician-focused surveys.
    
- **Meaningful Research:** Contribute to projects that help healthcare and life sciences organisations better understand clinical practices and physician perspectives.

Clinical Survey Research & Methodology Expert (Physician / PhD)

### Role Overview:

Mercor is looking for computer power users and automation builders with 2-3 years of relevant experience, or currently enrolled postgrad students, to support a research project with a leading AI lab. You will work through real productivity and automation workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Deep familiarity with macOS and its apps, keyboard-driven workflows, and system settings
    
- Experience building automations with tools such as Shortcuts, Automator, AppleScript, Keyboard Maestro, Raycast, Alfred, Zapier, Make, or shell scripting
    
- Currently pursuing or recently completed Masters studies, or have 2-3 years of relevant experience + Bachelors from a prestigious institution
    
- Ability to clearly explain your reasoning while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real multi-app productivity and automation tasks on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

Computer Power Users & Automation Builders (Must own MacBook)

### Role Overview:

Mercor is looking for STEM researchers who hold or are currently pursuing an MSc or PhD to support a research project with a leading AI lab. You will work through real research workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Currently pursuing or have completed an MSc or PhD in a STEM field (e.g., physics, chemistry, biology, mathematics, computer science, engineering)
    
- Hands-on research experience with tools such as Python/Jupyter, MATLAB, R, LaTeX, reference managers, or lab/data analysis software
    
- Strong online research skills and ability to gather and clearly summarize information from diverse sources
    
- Ability to clearly explain your reasoning while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real research tasks (literature review, data analysis, modeling, technical writing) on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

STEM Researchers - MSc/PhD (Must own MacBook)

### Role Overview:

Mercor is looking for industrial and manufacturing engineers with 2-3 years of professional experience, or currently enrolled postgrad engineering students, to support a research project with a leading AI lab. You will work through real process, operations, and production engineering workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Degree in Industrial, Manufacturing, or Systems Engineering, or a related field
    
- Experience with process design, lean/Six Sigma, production planning, quality control, or supply chain analysis using spreadsheets, CAD, process-mapping, or statistical tools
    
- Currently pursuing or recently completed Masters studies, or have 2-3 years of relevant experience + Bachelors from a prestigious institution
    
- Ability to clearly explain your engineering decisions while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real industrial and manufacturing engineering tasks on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

Industrial & Manufacturing Engineers (Must own MacBook)

### Role Overview:

Mercor is looking for civil engineers and architects with 2-3 years of professional experience, or currently enrolled postgrad students in civil engineering or architecture, to support a research project with a leading AI lab. You will work through real design and drafting workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Degree in Civil Engineering, Architecture, or a related field
    
- Proficiency in Mac-compatible tools such as AutoCAD for Mac, ArchiCAD, Vectorworks, SketchUp, or Rhino; experience with structural, site, or building design is a plus
    
- Currently pursuing or recently completed Masters studies, or have 2-3 years of relevant experience + Bachelors from a prestigious institution
    
- Ability to clearly explain your design decisions while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real civil engineering and architectural tasks on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

Civil Engineers & Architects (Must own MacBook)

### Role Overview:

Mercor is looking for mechanical and CAD engineers with 2-3 years of professional experience, or currently enrolled postgrad engineering students, to support a research project with a leading AI lab. You will work through real engineering design workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Degree in Mechanical Engineering or a related field, with hands-on 3D modeling and drafting experience
    
- Proficiency in Mac-compatible CAD tools such as Fusion 360, Onshape, Shapr3D, or FreeCAD; familiarity with GD&T and engineering drawings is a plus
    
- Currently pursuing or recently completed Masters studies, or have 2-3 years of relevant experience + Bachelors from a prestigious institution
    
- Ability to clearly explain your engineering decisions while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real mechanical design and CAD tasks on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

Mechanical & CAD Engineers (Must own MacBook)

### Role Overview:

Mercor is looking for 3D artists and video editors with 2-3 years of professional or freelance experience, or currently enrolled postgrad students in film, animation, or digital media, to support a research project with a leading AI lab. You will work through real 3D and video production workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Proficiency in tools such as Blender, Cinema 4D, Maya, Final Cut Pro, Premiere Pro, DaVinci Resolve, or After Effects
    
- Experience with modeling, texturing, animation, editing, color grading, or motion graphics; a reel or portfolio is a plus
    
- Currently pursuing or recently completed Masters studies, or have 2-3 years of relevant experience + Bachelors from a prestigious institution
    
- Ability to clearly explain your creative decisions while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real 3D and video editing tasks on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

3D Artists & Video Editors (Must own MacBook)

### Role Overview:

Mercor is looking for UI/UX designers with 2-3 years of professional experience, or currently enrolled postgrad HCI/design students, to support a research project with a leading AI lab. You will work through real product design workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Proficiency in tools such as Figma, Sketch, Framer, or Adobe XD
    
- Experience designing web or mobile interfaces, wireframes, prototypes, and design systems; familiarity with user research and usability testing is a plus
    
- Currently pursuing or recently completed Masters studies, or have 2-3 years of relevant experience + Bachelors from a prestigious institution
    
- Ability to clearly explain your design decisions while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real UI/UX design tasks on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

UI/UX Designers (Must own MacBook)

### Role Overview:

Mercor is looking for graphic designers with 2-3 years of professional or freelance experience, or currently enrolled postgrad design students, to support a research project with a leading AI lab. You will work through real design workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Proficiency in design tools such as Adobe Photoshop, Illustrator, InDesign, Affinity, or Canva
    
- Experience with branding, layout, typography, and visual communication; a portfolio is a plus
    
- Currently pursuing or recently completed Masters studies, or have 2-3 years of relevant experience + Bachelors from a prestigious institution
    
- Ability to clearly explain your creative decisions while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real graphic design tasks on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

Graphic Designers (Must own MacBook)

### Role Overview:

Mercor is looking for data analysts and spreadsheet specialists with 2-3 years of experience, or currently enrolled postgrad students in a quantitative field, to support a research project with a leading AI lab. You will work through real data analysis workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Advanced proficiency in Excel, Numbers, and/or Google Sheets (pivot tables, lookups, charts, data cleaning, financial or operational models)
    
- Experience with SQL, Python/R, or BI tools (e.g., Tableau, Power BI) is a plus
    
- Currently pursuing or recently completed Masters studies, or have 2-3 years of relevant experience + Bachelors from a prestigious institution
    
- Ability to clearly explain your reasoning while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real data analysis and spreadsheet tasks on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

Data Analysts & Spreadsheet Specialists (Must own MacBook)

### Role Overview:

Mercor is looking for software developers with 2-3 years of professional coding experience, or currently enrolled postgrad Computer Science students, to support a research project with a leading AI lab. You will work through real development workflows on your own Mac to help benchmark and improve cutting-edge AI models.

### Qualifications:

- **Required: You must own a MacBook or Mac with an Apple M-series chip or Intel processor, running macOS 15 or higher. Applicants without a Mac cannot be considered.**
    
- Hands-on experience with one or more programming languages (e.g., Python, JavaScript/TypeScript, Swift, Java, Go)
    
- Comfortable with everyday developer tools on macOS such as VS Code, Xcode, Terminal, Git, and package managers
    
- Currently pursuing or recently completed Masters studies, or have 2-3 years of relevant experience + Bachelors from a prestigious institution
    
- Ability to clearly explain your reasoning while you work
    
- Excellent written and verbal communication skills
    

### Job Details:

- Part-time commitment of approximately 10-20 hours per week
    
- Responsibilities include completing and narrating real software development tasks (building, debugging, refactoring, reviewing code) on your Mac to create high-quality training data for advanced AI models
    
- Clearly structured responsibilities without the high pressure typically found in internships or full-time consulting roles
    
- Immediate start preferred
    

### Application and Onboarding Process:

- Submit your resume, followed by a brief (3-minute) conversation with our AI interviewer to assess research and reasoning skills
    
- Complete a brief paid assessment to further evaluate your fit for the role
    
- You will receive follow-up communication within a few days regarding your application status and next steps

Software Developers (Must own MacBook)

We're looking for everyday users of Meta Muse or Instinct who have used the app for at least 2 weeks. Each week you'll keep using the assistant across different parts of your life (at least 3, e.g. work, health, errands, social), then log and rate the proactive messages it sends you. You'll also export your weekly conversations with personal details removed. This is an ongoing study with the same group of raters each week.

AI Assistant User – Weekly Feedback Study

## About the work

We are building expert-authored forecasting and research data used to evaluate and improve AI models on real political and financial analysis. Each task asks a practitioner to reason from a fixed evidence cutoff — no hindsight — and document the judgment a strong analyst would have made at that moment.

This role covers political report authorship: elections, polling, and political-risk events.

## What you will do

- Author point-in-time political reports and forecasts from a stated evidence cutoff
    
- Make and document directional judgments about polling, win probabilities, and market-implied odds
    
- Explain the causal mechanism behind an event's expected political and market impact
    
- Review model-generated analyses and grade them against your own standard
    

## Who we are looking for

- Local political analysts with hands-on experience on specific races in swing states: current or upcoming Senate, governor, or statewide contests, or recent cycles in the same state
    
- On-the-ground knowledge of the electorate, the candidates, and the local political environment, from roles such as university political scientist, state or regional pollster, state-level campaign or party analytics staff, or state political-risk analyst
    
- A record of making live judgments about polling, win probabilities, or odds in those races — not retrospective commentary
    
- Strong polling literacy and causal event analysis
    
- Typically 8+ years of direct experience, or unusually strong evidence of equivalent performance
    

Backgrounds we look at first: political science departments and survey research centers at universities in the target states, state and regional pollsters, state-level campaign and party analytics teams, and decision desks or race-ratings outlets with state-specific coverage. National forecasting or political-risk experience is welcome when paired with deep knowledge of a specific state. Brand-name experience is a strong first-pass signal but is not a hard requirement — direct experience and performance on the work sample determine who qualifies.

## Not a fit

- Profiles whose experience is mainly international politics, geopolitics, or country risk, with little or no work on US races
    
- Analysts who have not worked on a current or recent US race in the state they would cover
    
- Pure communications or journalism profiles without demonstrated forecasting, polling, or probabilistic judgment
    
- Academic profiles whose work is purely theoretical, with no analysis of live races
    

## Point-in-time discipline

Every task is graded on reasoning from the stated cutoff without hindsight, data leakage, confidential information, or material non-public information.

Local Political Expert (Iowa) — Elections Forecasting & Political Risk

Local Political Expert (Maine) — Elections Forecasting & Political Risk

**Join a leading AI lab's cutting-edge research team to be at the core of the AI revolution, where your expertise fuels the development of the most advanced AI models.**

# 1\. Overview

Join a leading AI lab's cutting-edge research team and help shape how its next generation of video models is judged. We're seeking film, theater and visual effects professionals who understand how a shot is built, from lighting and grade to framing, camera movement, continuity, texture and performance, to compare AI-generated video side by side and explain which result holds up to a professional eye. This work is ongoing, with new rounds as new models are released.

This is a W-2 employment position with Cincinnatus LLC (or appropriate international entity), with the opportunity to be placed at a leading AI Lab as part of their extended workforce.

# 2\. Key Responsibilities

- Evaluate pairs of AI-generated videos made from the same prompt and choose the stronger result on specific craft axes: lighting and grade, framing and composition, camera and lens direction, texture and physical realism, shot continuity, and acting and dialogue delivery.
- Write short, precise reasons for each judgment that name what worked and what broke, in the language a supervisor would use in dailies.
- Check each video against its prompt, including whether the requested camera move, lens, framing or performance was actually delivered.
- Take part in calibration rounds with other raters so judgments stay consistent across the pool, and flag prompts or guidelines that are unclear.
- Collaborate with other subject matter experts to ensure consistency and accuracy in evaluation data.

# 3\. Core Qualifications

- Professional or graduate experience in at least one of the following: film or theater (including current graduate students), character animation focused on human performance, character technical direction, acting coaching or teaching, directing (especially crowd and background action), assistant directing, compositing, lighting, texture or surfacing, render wrangling, color or digital imaging (assistant colorist or DIT), camera department (1st AC or camera operator), editing, or display and AV quality assurance.
- Either training at a respected film, theater or animation program plus 2+ years of practical experience, or 4+ years of practical experience including at least two projects with a theatrical release.
- A trained eye for detail on screen and the ability to put it into clear, specific words.
- Fluency in English. Proficiency in a second dubbing language (French, Italian, German, Spanish, Portuguese, Korean or Hindi) is a strong plus.
- Access to a good quality display and headphones for reviewing video and dialogue.
- Ability to engage reliably for at least 20 hours/week during weekdays.
- Strong written communication skills and the ability to explain creative judgments clearly.

**About Cincinnatus LLC:**
Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

**Equal Employment Opportunity:**
Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Film & Video Craft Expert (Camera, VFX, Editing & Performance)

**Join a leading AI lab's cutting-edge GenAI team to be at the core of the AI revolution, where your expertise fuels the development of the most advanced AI models.**

# 1\. Overview

A leading AI lab is building a performance transfer model: one that takes an actor's original performance and carries it faithfully into a new output, keeping the timing, the emotion and the small physical choices that make it feel real. We're looking for senior character animators who have spent their careers bringing acting to life on feature films, VFX and games, to help define what a well transferred performance looks like and judge where the model gets it right or wrong.

This is a part-time W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading AI Lab as part of their extended workforce.

# 2\. Key Responsibilities

- **Set the quality bar:** Define clear standards for when a performance has been carried over well, in body mechanics, facial nuance, timing and emotional intent, and point out where current evaluations fall short.
    
- **Critique model outputs:** Review generated performances shot by shot, the way you would in dailies, and write precise, actionable notes.
    
- **Build benchmarks:** Choose reference performances that range from easy to genuinely hard to capture, so the model is tested on what matters.
    
- **Shape the reviewer pool:** Help define the profile, rubric and calibration for the human reviewers who score outputs at scale.
    
- **Collaborate with other experts** to keep evaluations consistent and accurate.
    

# 3\. Core Qualifications

- 10+ years as a hands-on character animator focused on human and character acting, at Senior, Lead or Principal level.
    
- Animator credits on several feature films, VFX features or AAA game cinematics at recognized studios (e.g., Sony Pictures Imageworks, ILM, Animal Logic, Laika, Pixar, Disney, DreamWorks, Framestore, MPC, DNEG, Weta FX).
    
- A sharp eye for micro expressions, lip sync, weight and timing, and the small acting choices that make a performance feel authentic.
    
- Strongly preferred: facial animation experience, and recent work in real-time engines (Unreal or Unity), VR/XR, or performance capture pipelines.
    
- Hands-on use of generative image and video tools (e.g., Sora, Veo, Midjourney, Runway, Kling) to create your own samples for testing and comparison.
    
- Able to work on-site in Playa Vista (Los Angeles), CA or New York, NY for in-person working sessions once or twice a month.
    
- Strong written communication and the ability to turn visual detail into clear, precise language for evaluation templates.
    

**About Cincinnatus LLC:**
Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

**Equal Employment Opportunity:**
Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Senior Character Animator

**Join a leading AI lab's cutting-edge GenAI team to be at the core of the AI revolution, where your expertise fuels the development of the most advanced Large Language Models.**

# 1\. Overview

Join a leading AI lab's cutting-edge GenAI team and help build foundational AI models from the ground up. We're seeking talented Electrical Engineers with deep, hands-on industry experience in circuit design, power systems, or embedded hardware to bring real engineering judgment and elevate the quality of our AI training data. This is a full-time commitment of 40 hours per week for an initial engagement of 3 to 4 months, with a strong possibility of extension.

This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading AI Lab as part of their extended workforce.

**Location:** Remote within the United States; San Francisco Bay Area-based candidates strongly preferred.

# 2\. Key Responsibilities

- Guide research and engineering teams to close knowledge gaps and improve AI model performance in electrical engineering, including circuit analysis and design, power systems and power electronics, and embedded and control systems.
- Design challenging, domain-relevant tasks, and write accurate and well-structured reference solutions to electrical engineering problems.
- Evaluate electrical engineering tasks and model outputs and provide clear, written technical feedback, catching incorrect assumptions, unit and sign errors, violated design constraints, and unsafe design choices.
- Develop guidelines and detailed rubrics to assess the quality of reasoning across areas such as analog and mixed-signal design, RF, PCB and board-level design, power distribution, signal processing, and controls.
- Collaborate with other subject matter experts to ensure consistency and accuracy in training data.

# 3\. Core Qualifications

- Bachelor's degree or higher in Electrical Engineering, Electrical and Computer Engineering, or a closely related engineering discipline.
- 5+ years of hands-on professional electrical engineering experience in industry, for example in semiconductors, consumer electronics, power and utilities, aerospace and defense, automotive and EV, robotics, telecommunications, or medical devices.
- Genuine ownership of real engineering work, for example designing and bringing up circuits or boards, running circuit simulations, specifying power systems, or taking hardware through design reviews, validation, and production.
- Working fluency with common tools (for example SPICE/LTspice, Cadence, Altium, KiCad, MATLAB/Simulink, or ETAP) and familiarity with relevant codes and standards (for example IEEE, NEC, IPC, or UL).
- Demonstrable career progression toward senior or lead engineering responsibility. A Professional Engineer (PE) license is a plus but not required.
- Hands-on working use of large language models in professional work, and the judgment to tell a well-reasoned answer from a plausible-sounding wrong one.
- Ability to engage reliably for at least 40 hours/week during weekdays.
- Strong written communication skills and the ability to explain complex technical decisions clearly.

**About Cincinnatus LLC:**
Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

**Equal Employment Opportunity:**
Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Electrical Engineer

**What you’ll do:** review paired AI-generated in-product writing (short text people skim, not read); judge voice, tone, and adherence to editorial standards; select a preferred sample, write a one-line reason, apply tags; clear the calibration gate before live data.

**Background:** set voice and tone for in-product writing at a major tech or consumer product company; experience rating or rewriting AI-generated text against editorial standards.

**Schedule:** 5 hours/day, 5 business days for the pilot, ramping into an ongoing month-to-month engagement.

Content Designer

Mercor is hiring **physicians (MD) with pediatric emergency department or pediatric urgent care experience** on behalf of a healthcare AI partner building advanced clinical documentation tools. In this role you will apply your pediatric acute-care expertise to **review, annotate, and evaluate clinical documentation**, directly shaping the accuracy, safety, and clinical usefulness of medical AI systems.

## Key Responsibilities

**Clinical Documentation Review**

- Review pediatric emergency and urgent care documentation and patient charts for accuracy, completeness, and clinical soundness
    
- Evaluate AI-generated clinical summaries against what a practicing pediatric acute-care physician would expect to see
    

**Annotation & Structured Feedback**

- Annotate clinical encounter data against detailed guidelines
    
- Flag omissions, hallucinations, clinical inaccuracies, and documentation gaps in AI-generated output
    
- Provide structured, written feedback that engineering and product teams can act on
    

**Knowledge Contribution**

- Contribute expert input on annotation guidelines and edge-case definitions
    
- Raise clarifying questions where guidance is ambiguous and help refine the guidelines
    

## Required Qualifications

- **MD** with a background in **pediatric emergency medicine or pediatric urgent care**
    
- **US-based**
    
- Available for a **minimum of 10 hours/week** through mid-November
    

## Preferred Qualifications

- Prior **AI/ML annotation or model evaluation** experience (with positive performance reviews)
    

## Work Arrangement

- Remote, part-time
    
- Flexible scheduling, designed around an active clinical practice

Pediatric Emergency / Urgent Care Physician (MD)

**About the Role**
Mercor is partnering with a leading AI lab to build gold-standard legal reasoning data from a real deposition record. We're hiring one experienced civil litigator to work through a full rough deposition transcript and author the reference answers that AI models will be measured against.

**What You'll Do**

- Read a rough deposition transcript of roughly 250 pages in full
    
- Write gold answers to about 100 questions about the record, citing support by page and line
    
- Complete eight short litigation tasks drawn from the same transcript
    
- Prepare all gold answers without AI assistance, and note anywhere an AI tool was used only for navigating the transcript
    
- Own every answer end to end: one litigator is responsible for the full set, so judgment stays consistent across all questions and tasks
    

**You're a Good Fit If You**

- Are a practicing civil litigator who has personally taken and defended depositions (50+ depositions preferred)
    
- Practice in commercial, contract or personal injury litigation
    
- Are comfortable working from a long rough transcript and citing it precisely by page and line
    
- Hold a J.D. and are licensed to practice law in the U.S. (Minnesota admission is not required; the questions turn on the record, not on state procedure)
    

**Role Highlights**

- Fully remote; must be based in the United States
    
- Role starts immediately, and applications are reviewed on a rolling basis

Legal Expert — Civil Litigator (Deposition Transcript Review)

We're looking for experienced HR professionals who are native or fluent in Mandarin Chinese to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
    
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
    
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
    
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.
    

**Requirements:**

- Experience in HR (business partnering, employee relations, compensation or talent)
    
- Native or fluent in Mandarin Chinese
    
- Bachelor's degree from a recognized institution in mainland China
    
- Knowledge of the PRC Labor Contract Law, the social insurance and housing fund system, and Chinese payroll practice
    

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Human Resources Expert, Mandarin Chinese (mainland China)

We're looking for experienced scientists and engineers who are native or fluent in Mandarin Chinese to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience as a scientist or engineer in research or industry (master's or PhD a plus)
- Native or fluent in Mandarin Chinese
- Bachelor's degree from a recognized institution in mainland China
- Comfortable with quantitative analysis, technical documentation and data-heavy problem solving

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

STEM Expert, Mandarin Chinese (mainland China)

We're looking for experienced physicians who are native or fluent in Mandarin Chinese to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
    
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
    
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
    
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.
    

**Requirements:**

- Experience in clinical practice
    
- Native or fluent in Mandarin Chinese
    
- Bachelor's degree from a recognized institution in mainland China
    
- Holds the PRC Medical Practitioner Qualification Certificate, familiar with Chinese clinical guidelines and hospital practice
    

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Medical Expert, Mandarin Chinese (mainland China)

We're looking for experienced lawyers who are native or fluent in Mandarin Chinese to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
    
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
    
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
    
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.
    

**Requirements:**

- Experience in legal practice
    
- Native or fluent in Mandarin Chinese
    
- Bachelor's degree from a recognized institution in mainland China
    
- Passed the PRC National Unified Legal Professional Qualification Exam, with deep knowledge of the PRC Civil Code and company, contract or employment law
    

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Legal Expert, Mandarin Chinese (mainland China)

We're looking for experienced management and strategy consultants who are native or fluent in Mandarin Chinese to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
    
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
    
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
    
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.
    

**Requirements:**

- Experience in management or strategy consulting
    
- Native or fluent in Mandarin Chinese
    
- Bachelor's degree from a recognized institution in mainland China
    
- Experience with market entry, operations and growth strategy work for companies operating in China
    

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Consulting Expert, Mandarin Chinese (mainland China)

We're looking for experienced finance professionals who are native or fluent in Mandarin Chinese to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
    
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
    
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
    
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.
    

**Requirements:**

- Experience in corporate finance, banking, investment or audit
    
- Native or fluent in Mandarin Chinese
    
- Bachelor's degree from a recognized institution in mainland China
    
- Strong knowledge of Chinese financial practice (Chinese Accounting Standards, CSRC regulation, A-share markets, Chinese tax filings)
    

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Finance Expert, Mandarin Chinese (mainland China)

We're looking for experienced HR professionals who are native or fluent in German to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in HR (business partnering, employee relations, compensation or talent)
- Native or fluent in German
- Bachelor's degree from a recognized institution in Germany
- Knowledge of German labor law, works councils (BetrVG), Tarifverträge and German payroll and social insurance

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Human Resources Expert, German (Germany)

We're looking for experienced scientists and engineers who are native or fluent in German to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience as a scientist or engineer in research or industry (master's or PhD a plus)
- Native or fluent in German
- Bachelor's degree from a recognized institution in Germany
- Comfortable with quantitative analysis, technical documentation and engineering problem solving

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

STEM Expert, German (Germany)

We're looking for experienced physicians who are native or fluent in German to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in clinical practice
- Native or fluent in German
- Bachelor's degree from a recognized institution in Germany
- Licensed physician in Germany (Approbation), ideally Facharzt, familiar with AWMF guidelines and GKV practice

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Medical Expert, German (Germany)

We're looking for experienced lawyers who are native or fluent in German to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in legal practice
- Native or fluent in German
- Bachelor's degree from a recognized institution in Germany
- Fully qualified German lawyer (Volljurist) with deep knowledge of BGB, HGB, GmbHG and German court procedure

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Legal Expert, German (Germany)

We're looking for experienced management and strategy consultants who are native or fluent in German to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in management or strategy consulting
- Native or fluent in German
- Bachelor's degree from a recognized institution in Germany
- Experience with strategy, operations and restructuring work for clients in Germany / DACH, incl. Mittelstand and industrial clients

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Consulting Expert, German (Germany)

We're looking for experienced finance professionals who are native or fluent in German to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in corporate finance, banking, investment or audit
- Native or fluent in German
- Bachelor's degree from a recognized institution in Germany
- Strong knowledge of German financial practice (HGB / IFRS, BaFin regulation, German tax rules)

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Finance Expert, German (Germany)

We're looking for experienced HR professionals who are native or fluent in Spanish to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in HR (business partnering, employee relations, compensation or talent)
- Native or fluent in Spanish
- Bachelor's degree from a recognized institution in Spain
- Knowledge of the Estatuto de los Trabajadores, collective agreements, Social Security and Spanish payroll

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Human Resources Expert, Spanish (Spain)

We're looking for experienced scientists and engineers who are native or fluent in Spanish to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience as a scientist or engineer in research or industry (master's or PhD a plus)
- Native or fluent in Spanish
- Bachelor's degree from a recognized institution in Spain
- Comfortable with quantitative analysis, technical documentation and data-heavy problem solving

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

STEM Expert, Spanish (Spain)

We're looking for experienced physicians who are native or fluent in Spanish to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in clinical practice
- Native or fluent in Spanish
- Bachelor's degree from a recognized institution in Spain
- Licensed physician in Spain (colegiado), typically after MIR residency, familiar with SNS protocols and Spanish clinical guidelines

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Medical Expert, Spanish (Spain)

We're looking for experienced lawyers who are native or fluent in Spanish to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in legal practice
- Native or fluent in Spanish
- Bachelor's degree from a recognized institution in Spain
- Practicing in Spain, ideally a member of a Spanish bar association (colegiado), with deep knowledge of Spanish civil, commercial or employment law

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Legal Expert, Spanish (Spain)

We're looking for experienced management and strategy consultants who are native or fluent in Spanish to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in management or strategy consulting
- Native or fluent in Spanish
- Bachelor's degree from a recognized institution in Spain
- Experience with strategy, operations and transformation work for clients in Spain

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Consulting Expert, Spanish (Spain)

We're looking for experienced finance professionals who are native or fluent in Spanish to help train and evaluate AI agents on realistic professional tasks.

**What you'll do:**

You'll work in realistic digital workspaces, with documents, spreadsheets, email, chat and industry tools, to create and review the kinds of tasks you handle in your own job. Your work will include:

- Building workspaces: reviewing files, memos and records a real team would have for a project or case.
- Writing tasks: drafting realistic requests in your language that a colleague or client might send, grounded in local practice, regulations and terminology.
- Defining what good looks like: writing clear grading criteria and checking whether an AI agent's work would meet your professional standard.
- Reviewing AI work: going through an agent's step-by-step work, spotting mistakes such as wrong calculations, missed details or incorrect local rules, and correcting them.

**Requirements:**

- Experience in corporate finance, banking, investment or audit
- Native or fluent in Spanish
- Bachelor's degree from a recognized institution in Spain
- Strong knowledge of Spanish financial practice (PGC / IFRS, CNMV regulation, Spanish tax filings)

Details: Remote, about 21 hours per week, hourly, pilot running Oct 23 to Nov 19.

Finance Expert, Spanish (Spain)

**Join a leading AI lab's cutting-edge GenAI team to be at the core of the AI revolution, where your expertise fuels the development of the most advanced Large Language Models.**

# 1\. Overview

Join a leading AI lab's cutting-edge GenAI team and help build foundational AI models from the ground up. We're seeking talented Program Leads with deep, hands-on experience running AI training data, human data and model evaluation programs to lead large pools of domain experts day to day, turn research inputs into clear guidelines, and elevate the quality and throughput of our AI training data. This is a full-time commitment of 40 hours per week.

This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading AI Lab as part of their extended workforce.

# 2\. Key Responsibilities

- Lead and coordinate a large pool of domain experts day to day, including onboarding new experts, running calls and weekly reviews, and keeping work moving against deadlines and quality bars.
    
- Guide research and product partners to close gaps between program goals and expert output, translating research and leadership inputs into clear, actionable guidelines and task instructions.
    
- Track deliverables, throughput and quality metrics in spreadsheets such as Sheets or Excel, and report program status clearly to stakeholders.
    
- Evaluate expert submissions and quality trends, identify root causes of quality issues, and provide clear, written feedback that raises the bar across the team.
    
- Flag risks and blockers early, propose fixes, and drive them to resolution with research, product and operations partners.
    
- Collaborate with research and product partners and other subject matter experts to ensure consistency and accuracy in training data.
    

# 3\. Core Qualifications

- Experience as an Expert Program Manager (EPM), program lead or team lead on AI training data, human data or model evaluation projects, at Mercor or at another AI training or data company (e.g., Scale AI, Surge, Micro1, Turing, Outlier, Appen, TELUS, or an internal AI data operations team at a large technology company).
    
- 3+ years of experience leading or coordinating large contributor or expert teams against deadlines and quality bars.
    
- Demonstrable career progression (e.g., Expert Contributor to Reviewer to Team Lead to Program Lead or Expert Program Manager).
    
- Ability to engage reliably for at least 40 hours/week during weekdays.
    
- Strong written communication skills and the ability to explain complex guidelines and quality decisions clearly.
    

**Preferred Qualifications:**

- Prior experience on Mercor projects.
    
- A degree in a STEM field.
    
- Advanced spreadsheet skills (Sheets or Excel), working knowledge of SQL, and some coding experience.
    
- People leadership experience, including managing large groups of contributors or experts.
    

**About Cincinnatus LLC:**
Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

**Equal Employment Opportunity:**
Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Program Lead

**Overview**
We're looking for audio engineers with strong experience editing and quality-checking **voice recordings for speech and text-to-speech (TTS) applications**, specifically for **Brazilian Portuguese-language audio**. This role focuses on preparing high-quality audio datasets for machine learning systems, ensuring clarity, consistency, and technical compliance across large volumes of Brazilian Portuguese speech data. **Native or near-native Brazilian Portuguese fluency is required** to accurately assess speech quality, pronunciation, and naturalness.

* * *

## **What You'll Do**

- Edit and process **Brazilian Portuguese voice recordings** for use in TTS and speech AI systems
    
- Perform **audio cleanup** including silence trimming, breath reduction/removal, de-clicking, de-essing, and noise reduction
    
- Conduct detailed **quality assurance checks** for:
    
    - Clipping and distortion
        
    - Background noise and artifacts
        
    - Loudness consistency and level balancing
        
- Ensure audio meets **strict technical specifications** for ML training pipelines
    
- Evaluate recordings for **Brazilian Portuguese pronunciation accuracy, naturalness, and fluency**
    
- Work with large batches of recordings, maintaining **consistency and throughput**
    
- Collaborate with teams working on **Brazilian Portuguese speech datasets, voice talent recordings, and model training workflows**
    

* * *

## **Basic Qualifications**

- **Native or near-native Brazilian Portuguese speaker** with strong listening intuition for Brazilian Portuguese speech nuances
    
- Experience editing **speech or voice recordings** (not just music production)
    
- Strong understanding of **speech audio quality standards** and common issues in recorded dialogue
    
- Hands-on experience with tools like **iZotope RX, Pro Tools, or similar audio restoration software**
    
- Ability to identify and fix **artifacts, inconsistencies, and technical defects** in audio
    
- Experience working with **high-volume audio datasets or structured workflows**
    

* * *

## **Preferred Qualifications**

- Experience working with **TTS vendors or platforms**
    
- Prior involvement in **speech ML, voice AI, or dataset creation/annotation workflows**
    
- Familiarity with **audio QA pipelines, labeling, or evaluation processes**
    
- Experience directing or editing **Brazilian Portuguese voice talent recordings**
    

* * *

## **Ideal Candidate Profile**

- Detail-oriented with strong **critical listening skills in Brazilian Portuguese**
    
- Comfortable working with **repetitive, high-precision tasks at scale**
    
- Able to balance **speed and quality** in production environments
    
- Familiar with the nuances of **human Brazilian Portuguese speech vs synthetic voice requirements**

Audio Engineer (Speech / TTS Audio Specialist) – Brazilian Portuguese

Mercor is recruiting Atomistic Materials Modelling Experts with strong backgrounds in computational materials science, quantum mechanical simulations, and molecular modelling to support advanced AI research. Experts will evaluate technically demanding problems involving atomistic simulations, materials properties, computational methodologies, and scientific reasoning. The ideal candidate has extensive hands-on experience with density functional theory (DFT), molecular dynamics (MD), and other atomistic modelling techniques, alongside a strong understanding of the underlying physical principles.

### Key Responsibilities

- Evaluate advanced scientific problems involving atomistic simulations and computational materials science.
    
- Review and validate AI-generated answers involving DFT calculations, molecular dynamics, and materials property predictions.
    
- Assess the appropriateness of computational methods, simulation parameters, convergence criteria, and physical assumptions.
    
- Analyse atomic structures, electronic properties, reaction energetics, diffusion mechanisms, and materials stability.
    
- Evaluate surface and interface phenomena, adsorption energies, defect formation, and chemical reaction pathways.
    
- Develop high-quality reference solutions, evaluation rubrics, and technically rigorous scientific explanations.
    
- Identify computational inaccuracies, methodological limitations, and errors in scientific reasoning.
    
- Apply computational expertise to improve AI performance on complex materials science problems.
    

### Required Qualifications

- PhD in Computational Materials Science, Materials Science and Engineering, Computational Chemistry, Condensed Matter Physics, Chemical Engineering, or a closely related field. Exceptional MSc candidates with substantial relevant experience may be considered.
    
- Demonstrated hands-on experience with at least one of the following:
    
    - Density Functional Theory (DFT)
        
    - Ab initio Molecular Dynamics (AIMD)
        
    - Classical Molecular Dynamics (MD)
        
    - Monte Carlo simulations
        
    - Atomistic or first-principles materials modelling
        
- Proficiency with one or more computational tools, such as VASP, Quantum ESPRESSO, CP2K, GPAW, LAMMPS, or similar software.
    
- Strong understanding of electronic structure, interatomic interactions, thermodynamics, statistical mechanics, and materials properties.
    
- Experience interpreting simulation results and validating computational predictions.
    
- Strong Python skills for scientific computing, data analysis, or workflow automation.
    

### Preferred Qualifications

- Experience with ASE, pymatgen, or computational materials workflow tools.
    
- Expertise in surface and interface modelling, heterogeneous catalysis, semiconductor materials, or reaction energetics.
    
- Experience with high-throughput computational materials screening.
    
- Familiarity with machine-learned interatomic potentials and AI-assisted materials discovery.
    
- Peer-reviewed publications demonstrating computational materials research.
    
- Experience integrating experimental materials characterisation with atomistic simulations.
    

### Engagement Details

- Commitment: Minimum 10 hours per week, with potential for up to 40 hours per week.
    

### Why Join Mercor?

- Apply advanced computational expertise to frontier AI research.
    
- Help develop AI systems capable of understanding and solving sophisticated materials science problems.
    
- Work on challenging scientific evaluations involving quantum mechanics, atomistic simulations, and materials discovery.
    
- Collaborate with teams working at the intersection of AI and scientific research.

Atomistic Materials Modeling Expert

Mercor is seeking experienced Inorganic Chemistry and Materials Synthesis Experts to contribute to advanced AI research initiatives. In this role, you will leverage your expertise in inorganic chemistry, synthetic methodologies, and materials characterisation to evaluate complex scientific problems, assess technical accuracy, and support the development of AI systems capable of advanced scientific reasoning. This opportunity is ideal for PhD-level researchers, materials scientists, and industry professionals with hands-on experience designing, synthesising, and characterising inorganic materials.

### Key Responsibilities

- Evaluate technically complex problems involving inorganic chemistry, solid-state chemistry, and materials synthesis.
    
- Review and validate AI-generated scientific explanations, synthesis pathways, and experimental methodologies.
    
- Assess reaction mechanisms, precursor selection, reaction conditions, phase formation, and materials stability.
    
- Develop scientifically rigorous reference answers, technical evaluations, and reasoning frameworks.
    
- Identify inaccuracies in chemical reasoning, proposed synthetic routes, and interpretations of experimental results.
    
- Apply knowledge of analytical and characterisation techniques such as XRD, XPS, SEM, TEM, FTIR, Raman spectroscopy, and thermal analysis.
    
- Collaborate with research teams to improve the scientific accuracy and reliability of advanced AI models.
    

### Required Qualifications

- PhD in Inorganic Chemistry, Materials Chemistry, Solid-State Chemistry, Materials Science, or a closely related discipline. Exceptional MSc candidates with extensive research experience may be considered.
    
- Demonstrated experience in inorganic synthesis, solid-state reactions, solution-phase synthesis, hydrothermal/solvothermal methods, or related techniques.
    
- Strong understanding of crystallography, phase diagrams, chemical bonding, thermodynamics, and reaction kinetics.
    
- Experience interpreting experimental characterisation data and assessing scientific literature.
    
- Strong scientific writing, analytical reasoning, and communication skills.
    
- Ability to independently evaluate complex scientific problems.
    

### Preferred Qualifications

- Research experience involving catalysts, metal oxides, ceramics, semiconductors, coordination compounds, or functional inorganic materials.
    
- Peer-reviewed publications or patents in inorganic chemistry or materials synthesis.
    
- Experience bridging experimental chemistry with computational materials science.
    
- Prior experience evaluating scientific datasets, technical benchmarks, or AI-generated research outputs.
    

### Engagement Details

- Commitment: Minimum 10 hours per week, with potential for up to 40 hours per week.
    

### Why Join Mercor?

- Apply specialised scientific expertise to cutting-edge AI research.
    
- Contribute to improving how advanced AI systems understand chemistry and materials science.
    
- Collaborate on intellectually challenging scientific problems.

Inorganic Chemistry & Synthesis Expert

## About the Role

An AI healthcare company that automates administrative and pharmacy workflows to help patients access life-changing medications and specialty treatments is seeking an experienced Cardiologist for a part-time consulting role. The role focuses on improving an AI model that identifies patients likely to have **transthyretin (ATTR) cardiac amyloidosis** through clinical chart review and evidence-based reasoning.

## What You’ll Do

- Review patient charts and assess the likelihood of ATTR cardiac amyloidosis, including cases with incomplete information.
    
- Document clinical reasoning using specific, evidence-based criteria; distinguish ATTR from similar conditions and communicate uncertainty.
    
- Apply consistent labeling standards and refine assessments based on new evidence and AI model feedback.
    
- Explain clinical decisions clearly to engineers and data scientists and complete labeling batches within agreed timelines.
    

## Who Should Apply

- MD or DO with completed Internal Medicine residency and Cardiology fellowship.
    
- Currently practicing Cardiologist with **2+ years of post-fellowship experience**.
    
- Hands-on experience working up and managing patients with suspected or confirmed **ATTR cardiomyopathy**, including ordering and interpreting PYP scans.
    
- Strong preference for Heart Failure or Transplant Cardiologists with advanced heart failure experience, or specialists in amyloidosis or cardiomyopathies.
    
- Able to commit **10–20 hours per week** and translate complex clinical judgments into clear, structured criteria.
    

**Preferred:** Experience at amyloidosis center of excellence or cardiomyopathy clinic; publications on ATTR cardiomyopathy screening, epidemiology, or diagnostic pathways; or previous work with AI/ML teams, clinical decision-support systems, or clinical chart labeling.

## Project Details

- **Engagement:** Part-time consulting with a commitment of 10–20 hours per week.
    
- **Required Role:** US-based clinicians only.
    
- **Focus:** Patient chart annotation, clinical reasoning, and AI model improvement.

Cardiologist – Clinical Consultant (ATTR Cardiac Amyloidosis)

**1\. Role Overview**

Mercor is collaborating with a leading AI research lab on a project to advance frontier medical problem-solving in oncology. We are looking for oncologists based in the United States with hands-on clinical practice experience. The goal of this project is to identify gaps in AI model reasoning around real-world oncology cases, particularly in clinical trial design, patient eligibility, and treatment decision-making, and to support the training of cutting-edge AI models.

This is a short-term, high-impact, remote opportunity for oncologists excited about applying their clinical expertise to frontier AI research, with the possibility of extension based on performance.

**2\. Key Responsibilities**

- Create realistic, nuanced oncology tasks and scenarios, particularly around clinical trials, that expose weaknesses in frontier AI model responses
    
- Evaluate AI-generated clinical reasoning for accuracy, completeness, and alignment with current standard-of-care guidelines
    
- Identify flawed logic, missed diagnoses, incomplete treatment rationale, or unsafe recommendations in model outputs
    
- Provide clear, well-structured expert responses and chain-of-thought reasoning that reflect real clinical decision-making
    

**3\. Qualifications**

You are a **strong** fit for this project if you meet most or all of the following:

- MD or DO who is currently pursuing or has completed a fellowship in medical oncology or hematology/oncology
    
- Currently practicing in the United States and seeing oncology patients, or has done so within the past three years (3+ years of post-residency experience strongly preferred)
    
- Ability to articulate clinical reasoning clearly and precisely in written form

Oncologist

Mercor is hiring experienced Medical Practitioners (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will assess model outputs across diagnosis, clinical reasoning, and care workflows.

Key Responsibilities

\- Evaluate AI model outputs for clinical accuracy, safety, and alignment with medical standards

\- Score diagnoses, case reasoning, and care recommendations against expert judgment

\- Write structured feedback on clarity, safety, and clinical rigor

\- Flag failure modes that compromise patient safety

\- Collaborate asynchronously with AI researchers to improve model performance

Required Qualifications

\- **MD or DO** from an accredited medical school

\- Active, unrestricted US medical license

\- Residency complete

\- **Currently practicing** and seeing patients

\- 3+ years of post-residency experience in your current role strongly preferred

\- Practice in primary care, internal medicine, and hospital-based specialties (Primary Care, General Internal Medicine, Family Medicine, Emergency Medicine, Critical Care)

\- Sharp attention to detail and clear written communication

\- Located in the US

Project Timeline

\- Start Date: Immediate

\- Duration: 6 weeks

\- Commitment: Part-time, 20+ hours per week

Application & Onboarding

\- Upload your resume and application form

\- Complete a 25-minute conversational interview on your background, experience, and motivations

\- Credential verification: license status, residency completion, and current practice setting

\- Final roster placement is confirmed with the project team before your start date

\- Receive next steps and onboarding details within a few days

Apply today and put your clinical expertise to work shaping the health models clinicians and patients will rely on.

General Physician

**Mercor** connects exceptional technical talent with leading organisations working on ambitious technology and AI initiatives. We are looking for experienced **Infrastructure / Site Reliability Engineers (SREs)** to join a full-time engagement focused on building and operating complex, enterprise-grade infrastructure. We are seeking engineers with strong hands-on experience building, operating, debugging, and scaling sophisticated production systems. The ideal candidate has worked extensively with **Kubernetes, AWS, observability platforms such as Datadog, and modern infrastructure tooling**.

This is a **full-time opportunity**, and candidates must be able to commit to full-time engagement.

## What You'll Do

- Build, operate, and improve highly available and scalable production infrastructure.
    
- Manage and optimise **Kubernetes-based production environments**.
    
- Design and maintain cloud infrastructure, primarily across **AWS**.
    
- Improve system reliability, availability, scalability, and operational efficiency.
    
- Build and maintain observability across infrastructure and applications using **Datadog** or similar platforms.
    
- Investigate production incidents, perform root-cause analysis, and implement durable fixes.
    
- Improve monitoring, alerting, logging, tracing, and overall production visibility.
    
- Develop automation and internal tooling to reduce manual operational work.
    
- Partner closely with software engineering teams on deployments, infrastructure, and production reliability.
    
- Contribute to infrastructure architecture and technical decisions for complex distributed systems.
    

## Ideal Background

- Professional experience in **Infrastructure Engineering, Site Reliability Engineering (SRE), Platform Engineering, DevOps, or Production Engineering**.
    
- Hands-on experience operating **complex, enterprise-grade production systems**.
    
- Strong production experience with **Kubernetes**.
    
- Strong experience with **AWS** and cloud-native infrastructure.
    
- Experience with **Datadog**, Prometheus, Grafana, or comparable observability platforms.
    
- Experience with Infrastructure as Code using **Terraform, Pulumi, or equivalent technologies**.
    
- Strong understanding of distributed systems, networking, containers, Linux, and cloud architecture.
    
- Experience building or maintaining CI/CD and production deployment infrastructure.
    
- Strong debugging, troubleshooting, and incident-response capabilities.
    
- Proficiency in at least one programming or scripting language, such as **Python, Go, or Bash**.
    

## Strong Signals

- Experience operating Kubernetes and cloud infrastructure at significant production scale.
    
- Experience supporting high-traffic or mission-critical applications.
    
- Experience building infrastructure or platform tooling used by large engineering organisations.
    
- Ownership of production reliability, on-call operations, incident response, or capacity planning.
    
- Experience working within sophisticated, large-scale distributed systems.
    
- Demonstrated improvements to **SLOs/SLIs, observability, deployment reliability, infrastructure performance, or operational efficiency**.
    

### Why Join

- Solve challenging reliability, scalability, and performance problems across enterprise-grade production systems.
    
- Work extensively with technologies such as **Kubernetes, AWS, Datadog, Terraform/Pulumi**, and modern cloud-native tooling.
    
- Take meaningful ownership of production reliability, observability, infrastructure architecture, and operational improvements.
    
- Competitive hourly compensation reflecting your experience and technical expertise.
    
- Join a network of highly skilled engineers working on ambitious projects with leading technology and AI organisations.

Infrastructure / Site Reliability Engineer (SRE)

**About the Role**

Mercor is hiring experienced **Property, Real Estate, and Community Association Managers** to help evaluate and improve cutting-edge AI systems. In this role, you'll evaluate AI-generated property management content and workflows, leveraging your real-world expertise in operating and maintaining residential, commercial, and industrial properties and managing community associations.

**Key Responsibilities**

- Evaluate AI-generated property operating budgets, lease analyses, maintenance plans, association governance documents, and other property management artifacts for quality and accuracy.
    
- Compare AI-generated responses head-to-head based on financial soundness, regulatory and lease compliance, and operational feasibility.
    
- Review scenarios involving tenant and owner relations, rent collection, vendor contracts, capital improvements, and association board matters and provide expert feedback.
    

**Required Qualifications**

- **4+ years** of experience as a Property Manager, Real Estate Manager, Community Association Manager, HOA Manager, Leasing Manager, or another closely related property or association management role.
    
- Experience planning, directing, or coordinating the leasing, operation, maintenance, or governance of residential, commercial, or industrial real estate properties or community associations.
    
- Ability to commit **20+ hours per week**.
    
- Strong written English communication skills.
    

**Additional Information**

- Start date: Immediate
    
- Duration: Approximately 4–6 weeks
    
- Payment: task-based (payment upon first task approval). Experts who complete their first task within the required timeline will then be qualified to be paid hourly for the remainder of the project.

Property, Real Estate, and Community Association Managers

**About the Role**

Mercor is hiring experienced **Administrative Services Managers** to help evaluate and improve cutting-edge AI systems. In this role, you'll evaluate AI-generated administrative operations content and workflows, leveraging your real-world expertise in planning, directing, and coordinating an organization's supportive services, such as facilities, records management, procurement, and office operations.

**Key Responsibilities**

- Evaluate AI-generated office operations plans, facilities and vendor management documents, records-management procedures, and other administrative artifacts for quality and accuracy.
    
- Compare AI-generated responses head-to-head based on operational soundness, policy compliance, and cost-effectiveness.
    
- Review administrative scenarios involving budgeting, procurement, space planning, support-services staffing, and process improvement and provide expert feedback.
    

**Required Qualifications**

- **4+ years** of experience as an Administrative Services Manager, Office Manager, Facilities Manager, Administrative Director, Business Operations Manager, or another closely related administrative management role.
    
- Experience planning, directing, or coordinating an organization's supportive services, such as recordkeeping, mail distribution, facilities planning and maintenance, procurement, and other office support services.
    
- Ability to commit **20+ hours per week**.
    
- Strong written English communication skills.
    

**Additional Information**

- Start date: Immediate
    
- Duration: Approximately 4–6 weeks
    
- Payment: task-based (payment upon first task approval). Experts who complete their first task within the required timeline will then be qualified to be paid hourly for the remainder of the project.

Administrative Services Managers

**About the Role**

Mercor is hiring experienced **Private Detectives and Investigators** to help evaluate and improve cutting-edge AI systems. In this role, you'll evaluate AI-generated investigative content and workflows, leveraging your real-world expertise in gathering, analyzing, and reporting facts on legal, financial, and personal matters.

**Key Responsibilities**

- Evaluate AI-generated investigation plans, background research summaries, surveillance reports, and other investigative artifacts for quality and accuracy.
    
- Compare AI-generated responses head-to-head based on investigative rigor, legal and ethical compliance, and soundness of conclusions.
    
- Review investigative scenarios involving evidence gathering, source verification, records research, and case reporting and provide expert feedback.
    

**Required Qualifications**

- **4+ years** of experience as a Private Investigator, Private Detective, Licensed Investigator, Fraud Investigator, Insurance Investigator, or another closely related investigative role.
    
- Experience gathering, analyzing, and compiling information on legal, financial, or personal matters, including background checks, surveillance, interviews, and records research, for clients, attorneys, or businesses.
    
- Ability to commit **20+ hours per week**.
    
- Strong written English communication skills.
    

**Additional Information**

- Start date: Immediate
    
- Duration: Approximately 4–6 weeks
    
- Payment: task-based (payment upon first task approval). Experts who complete their first task within the required timeline will then be qualified to be paid hourly for the remainder of the project.

Private Detectives and Investigators

**Help a leading AI lab ensure its models respond to people with care, balance and sound judgment.**

# 1\. Overview

A leading AI lab is seeking behavioral health experts to help evaluate and improve how its AI models handle sensitive, everyday conversations. People increasingly turn to AI for support with relationships, family dynamics, emotional wellbeing, personal beliefs and difficult life decisions. These conversations rarely involve crisis content, but they are exactly where a model's judgment matters most: whether it stays balanced, avoids taking sides, resists telling people what they want to hear, respects a person's beliefs without endorsing or dismissing them, and understands the limits of its role. You'll review these interactions, assess whether the model's responses are appropriate, neutral and safe, and help the lab's researchers define what good looks like. If you bring professional experience in mental health, counseling, social work or behavioral science, and you can articulate clearly why one response serves a person better than another, this role is for you. This is a part-time commitment of at least 20 hours per week, with the option to increase to up to 40 hours per week.

This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading AI lab as part of their extended workforce.

# 2\. Key Responsibilities

- Evaluate conversations between users and AI models across topics such as relationship and family advice, emotional wellbeing, spiritual and metaphysical questions, and unconventional or unfounded beliefs, and assess whether responses are neutral, appropriate and safe.

- Identify patterns of concern, including excessive agreement, taking sides, reinforcing distorted or unfounded beliefs, moralizing, or overstepping into clinical or directive advice, and document them with clear written rationale.

- Develop rubrics, guidelines and reference responses that define a balanced, supportive and appropriately bounded reply, grounded in established practice from counseling and behavioral health.

- Design test scenarios and conversations that probe how models handle sensitive but non crisis topics.

- Collaborate with the lab's researchers and fellow experts to keep evaluation standards consistent, calibrated and well documented.

# 3\. Core Qualifications

- A degree in psychology, counseling, social work, behavioral health, behavioral science, human services or a closely related field, or equivalent professional experience in the mental health field.

- 3+ years of professional experience supporting people in a mental health, counseling or social services setting, for example as a therapist, counselor, clinical social worker, psychologist, psychiatric nurse, case manager, crisis counselor, peer support specialist or mental health advocate. Clinical licensure (for example LMFT, LCSW, LPC, LMHC, PsyD or PhD) is valued but not required.

- Demonstrated ability to remain neutral and nonjudgmental across diverse perspectives, relationships, belief systems and worldviews, and to explain the reasoning behind a professional judgment.

- Working familiarity with concepts such as sycophancy, cognitive distortions, healthy boundaries and client centered approaches such as motivational interviewing.

- Ability to engage reliably for at least 20 hours/week during weekdays.

- Strong written communication skills and the ability to deliver precise, well structured written feedback.

**Nice to have:** a background in AI safety, applied ethics, trust and safety or content policy; experience in couples, family or relationship counseling; familiarity with spiritual care, religious or alternative belief communities, or the psychology of misinformation and conspiracy belief; prior experience evaluating, annotating or red teaming AI systems. You don't need all of these to apply.

**About Cincinnatus LLC:**
Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

**Equal Employment Opportunity:**
Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Behavioral Health Expert, AI Safety and Model Evaluation

**Help a leading AI lab teach its models to write real, machine-checked mathematics in Lean.**

# 1\. Overview

A leading AI lab is looking for Lean engineers, formal mathematicians and proof engineers to help its AI models state and prove mathematics correctly. You'll write and review Lean 4 proofs, turn informal math into precise formal statements, and help the lab's researchers judge whether a model's proof is not just accepted by the checker but actually proves the right thing. If you enjoy writing Lean, know your way around mathlib, and can explain why a formalization is faithful or subtly wrong, this role is for you. This is a part-time commitment of at least 20 hours per week, with the option to increase to up to 40 hours per week.

This is a W-2 employment position with Cincinnatus LLC (or appropriate international entity), with the opportunity to be placed at a leading AI lab as part of their extended workforce.

# 2\. Key Responsibilities

- Write correct, idiomatic Lean 4 statements and proofs that compile against current mathlib, across areas such as algebra, analysis, number theory, combinatorics and logic.
    
- Formalize natural-language mathematics, from competition problems and textbook results to research-level lemmas, paying close attention to whether the formal statement matches the original.
    
- Review AI-generated Lean statements and proofs, find where they fail or prove the wrong thing, and give clear, specific written feedback.
    
- Help define guidelines and rubrics for proof quality, statement fidelity and mathlib conventions.
    
- Collaborate with other Lean engineers and the lab's researchers to keep standards consistent and keep raising the quality bar.
    

# 3\. Core Qualifications

- Hands-on experience writing formal proofs in Lean 4, for example mathlib contributions, a formalization project, a Lean library or tool, or autoformalization work.
    
- Comfort with mathlib and Lean 4 tactics, and with finding and using the right lemmas.
    
- A strong background in proof-based mathematics, theoretical computer science or logic, through a degree or a research record.
    
- The ability to turn a written statement and proof into a correct formal statement and a proof that checks.
    
- Ability to engage reliably for at least 20 hours/week during weekdays.
    
- Clear written communication and the ability to explain proof strategy and formalization choices precisely.
    

**Nice to have:** experience with other proof assistants or dependently typed languages (Coq/Rocq, Isabelle, Agda, Haskell), Lean metaprogramming, or AI-for-math work such as LLM provers, Lean agent environments, or benchmarks like miniF2F, ProofNet or PutnamBench. You don't need all of these to apply.

**About Cincinnatus LLC:**
Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

**Equal Employment Opportunity:**
Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Lean Engineer, Formal Mathematics (Lean 4, Mathlib, Theorem Proving)

Mercor is seeking **Clinical Mental Health Experts** to support an AI research initiative focused on evaluating the realism and quality of simulated clinical conversations. This is a **short-term, fully remote evaluation task** designed for mental health professionals who can apply their clinical experience and professional judgment to assess realistic conversational scenarios. **The task will take up to 30 minutes to complete.**

## What You’ll Do

- Review pairs of simulated conversations involving clinical mental health scenarios.
    
- Evaluate the conversations based on their **realism and authenticity**.
    
- Determine which conversation more closely reflects a realistic clinical interaction.
    
- Apply your clinical experience and professional judgment when making evaluations.
    
- Complete the evaluation independently through an online interface.
    

## Ideal Background

We welcome professionals with a **relevant degree and clinical mental health expertise**. Suitable backgrounds may include:

- Clinical Psychology
    
- Counselling Psychology
    
- Mental Health Counselling
    
- Clinical Social Work
    
- Psychiatry
    
- Psychotherapy
    
- Behavioural Health
    
- Marriage and Family Therapy
    
- Other closely related clinical mental health disciplines
    

**Candidates should have:**

- A relevant degree or professional qualification in a mental health-related field.
    
- Practical experience working in a clinical mental health or behavioural health setting.
    
- Familiarity with real-world conversations between mental health professionals and patients or clients.
    
- Strong professional judgment and the ability to identify whether clinical interactions feel realistic and authentic.
    
- Strong attention to detail and the ability to make independent qualitative assessments.
    

## Why Join

- Apply your clinical expertise to the evaluation of advanced AI systems.
    
- Contribute to research aimed at improving the realism and quality of AI-generated interactions.
    
- Be considered for future AI evaluation and research opportunities requiring clinical mental health expertise.

Clinical Mental Health Expert — AI Conversation Evaluation

We are looking for experienced **U.S.-based Pharmacists and Pharmacy Technicians** to support an AI-focused healthcare project. This opportunity is ideal for pharmacy professionals with strong familiarity with prescription medications, generic and brand drug names, and standard U.S. medication terminology.

### What You’ll Do

- Review short audio samples containing spoken medication names.
    
- Evaluate whether medication names are pronounced accurately and clearly.
    
- Score audio samples using a structured evaluation rubric.
    
- Identify pronunciation errors, ambiguities, or inconsistencies.
    
- Apply evaluation standards consistently across review tasks.
    
- Participate in an initial calibration exercise to align on scoring expectations.
    
- Complete additional review batches as project needs arise.
    
- Provide concise feedback where clarification or correction is required.
    

### Ideal Background

- Licensed **Pharmacist (PharmD/RPh)** or experienced **Pharmacy Technician**.
    
- Professional pharmacy experience in the **United States**.
    
- Strong familiarity with generic and brand-name medications commonly encountered in U.S. pharmacy practice.
    
- Comfortable recognising and assessing medication terminology when spoken aloud.
    
- High attention to detail and ability to distinguish subtle pronunciation differences.
    
- Able to follow detailed rubrics and apply scoring criteria consistently.
    
- Strong written and spoken **U.S. English** proficiency.
    
- Experience in retail, hospital, speciality, mail-order, or other pharmacy settings is welcome.
    

### Preferred Qualifications

- Several years of hands-on pharmacy experience.
    
- Regular experience communicating medication names verbally with patients, pharmacists, physicians, or other healthcare professionals.
    
- Familiarity with a broad range of therapeutic areas and medication classes.
    
- Experience with quality assurance, annotation, clinical review, transcription review, or structured evaluation work is helpful but not required.
    

### Why Join

- Apply your pharmacy expertise to the development and evaluation of advanced AI systems.
    
- Contribute specialised healthcare knowledge without providing direct patient care.
    
- Opportunity to participate in additional projects as new review work becomes available.

Pharmacist / Pharmacy Technician — Medication Pronunciation Reviewer

Mercor is conducting a paid research study in collaboration with a leading AI research lab focused on improving healthcare. We are seeking **board-certified urologists and medical oncologists in the United States who manage patients with metastatic prostate cancer** to take part in a short online survey about treatment decision-making.

## Responsibilities

Participants will be asked to:

- Complete a structured ~30-minute online survey

- Share perspectives on how you evaluate and select systemic treatments for patients with prostate cancer

- Submit all responses within the given timeline

## Requirements

- **Urologist or medical oncologist** with an **MD or DO**

- **Board certified** in your specialty

- Hold an **active, unrestricted US medical license** and practice primarily in the **United States**

- Spend **at least 25% of your professional time in direct patient care**

- Have cared for **prostate-cancer patients in the past 12 months**, including at least one patient with **metastatic hormone-sensitive (mHSPC) or castration-resistant (mCRPC) prostate cancer**

- **Regularly manage metastatic prostate cancer**, with primary or shared responsibility for selecting systemic treatment

- Able to independently complete a ~30-minute online survey

Please note: this study is not open to anyone who has taken part in prostate-cancer market research in the past 3 months, or who (or whose immediate family) works for a pharmaceutical, diagnostics, market research, or advertising company, a wholesaler, or a specialty pharmacy.

## Engagement Details

- **Format:** Online survey

- **Duration:** Approximately 30 minutes

- **Compensation:** One-time payment upon successful verification of the submission

- **Location:** Remote (United States)

## Why Participate

- Contribute to research shaping the next generation of healthcare AI tools

- Share your real-world clinical expertise in managing advanced prostate cancer

Urologists & Medical Oncologists (Prostate Cancer) – Paid Research Study

**Mercor is seeking experienced Systems & Integration Engineers** to support an advanced engineering and AI research initiative with a leading technology organization. We are looking for deeply hands-on engineers who have integrated, tested, validated, debugged, qualified, or analyzed complex real-world hardware and electromechanical systems in production environments.

Relevant backgrounds include:

- **Systems Engineering**
    
- **Integration & Test Engineering**
    
- **Reliability / Failure Analysis Engineering**
    
- **Manufacturing Test Engineering**
    

This role is particularly well suited for engineers who have worked directly on complex physical products and can bring practical engineering judgment to system integration, verification and validation, reliability, root-cause analysis, manufacturing test, and cross-functional hardware troubleshooting.

### Key Responsibilities

- Apply hands-on systems, integration, reliability, and test engineering expertise to technically complex problems involving real physical products and hardware systems.
    
- Review and evaluate **system requirements, interfaces, integration plans, verification strategies, test procedures, qualification approaches, reliability analyses, and manufacturing test workflows**.
    
- Analyze system-level interactions across **electrical, mechanical, firmware/software, thermal, controls, and manufacturing domains**.
    
- Assess the technical correctness and practical feasibility of engineering solutions, test strategies, troubleshooting approaches, and system-level decisions.
    
- Diagnose integration failures and identify **root causes, interface issues, design deficiencies, reliability risks, manufacturing defects, and test coverage gaps**.
    
- Develop or review technically rigorous engineering problems, reference solutions, test cases, verification criteria, failure analyses, and technical documentation.
    
- Draw on practical experience with **prototype integration, bring-up, verification and validation, qualification, environmental testing, reliability testing, production test, and field failure investigation**.
    
- Provide clear technical feedback grounded in real-world hardware development, testing, and production experience.
    

### You’re a Strong Fit If You Have

- **5+ years of professional systems, integration, reliability, or test engineering experience**, including at least **3 years of recent, actively hands-on experience** with hardware integration, test, validation, qualification, failure analysis, manufacturing test, or troubleshooting—not solely program or people management.
    
- Demonstrated experience as the **responsible engineer for complex physical systems or hardware products**, owning meaningful portions of the lifecycle from requirements and interface definition through integration, verification, qualification, production readiness, and field support.
    
- Deep technical expertise in at least one core domain: **systems engineering and requirements/V&V; hardware integration and test; reliability engineering and failure analysis; or manufacturing/production test engineering**.
    
- Strong practical command of **requirements traceability, interface management, verification and validation, test planning, FMEA/FMECA, fault isolation, root-cause analysis, reliability, qualification, environmental testing, design-for-test, manufacturing yield, and system-level failure modes**, as applicable to the candidate's specialization.
    
- Extensive hands-on experience **integrating, instrumenting, testing, debugging, and characterizing physical hardware**, using relevant laboratory equipment, data-acquisition systems, automated test infrastructure, environmental test equipment, diagnostic tools, and structured failure-analysis methodologies.
    
- Proven experience developing and validating hardware in **real-world product or manufacturing environments**, ideally across aerospace/defense, space, automotive/EV, semiconductors, consumer electronics, robotics/eVTOL, industrial/energy, or medical devices—e.g., **Lockheed Martin, RTX, Boeing, Blue Origin, Rocket Lab, Tesla, Rivian, NVIDIA, Qualcomm, Intel, Apple, Google, Meta, Skydio, Shield AI, Joby, Boston Dynamics, Siemens, GE Aerospace, ABB, Medtronic, or Intuitive Surgical**—with the ability to clearly explain system decisions, integration trade-offs, test results, root causes, and failure mechanisms.
    

### Preferred Background

Experience working for a company that **designs, builds, integrates, tests, and manufactures complex physical hardware systems** is strongly preferred. Relevant organizations may include, but are not limited to:

- **Aerospace & Defense:**
    Lockheed Martin, Northrop Grumman, RTX, Boeing, General Atomics, L3Harris, BAE Systems, General Dynamics, Honeywell Aerospace, Textron
    
- **Space:**
    Blue Origin, Rocket Lab, Relativity Space, Firefly Aerospace, Sierra Space, Astranis, Planet, Maxar, Axiom Space
    
- **Automotive & EV:**
    Tesla, Rivian, General Motors, Ford, Lucid, Waymo, Zoox, Aptiv, Bosch
    
- **Semiconductors:**
    NVIDIA, Qualcomm, Intel, Analog Devices, Texas Instruments, Broadcom, Marvell, Micron, NXP, Infineon
    
- **Consumer Electronics & Computing:**
    Apple, Google Hardware, Meta Reality Labs, Microsoft Devices, Amazon, Samsung, Garmin, Sonos
    
- **Drones, eVTOL & Robotics:**
    Skydio, Shield AI, Zipline, Joby Aviation, Archer Aviation, Boston Dynamics, Figure, Agility Robotics, Wing
    
- **Industrial, Energy & Medical Devices:**
    Siemens, GE Aerospace, GE Vernova, ABB, Schneider Electric, Rockwell Automation, Enphase, Medtronic, Intuitive Surgical
    

Candidates from comparable hardware-focused organizations are equally encouraged to apply.

### Why Join

- Apply your systems and integration expertise to technically challenging problems at the intersection of **advanced hardware engineering and AI research**.
    
- Work on projects where practical experience with **real hardware integration, verification, reliability, failure analysis, and production testing** is highly valued.
    
- Help improve how advanced AI systems reason about **complex systems, interfaces, verification and validation, troubleshooting, reliability, manufacturing, and hardware failures**.
    
- Contribute remotely with flexible engagement structures alongside experienced engineers and researchers.
    
- Work on problems requiring genuine engineering judgment and hands-on industry experience rather than purely theoretical systems knowledge.

Systems & Integration Engineering Experts

**Mercor is seeking experienced Software and Firmware Engineers** to support an advanced engineering and AI research initiative with a leading technology organization. We are looking for deeply hands-on engineers who have designed, implemented, integrated, tested, debugged, or validated software and firmware that directly interfaces with real-world hardware systems.

Relevant backgrounds include:

- **Embedded Firmware Engineering**
    
- **FPGA / RTL Engineering**
    
- **Flight Software Engineering**
    
- **Hardware Test Automation Engineering**
    

This role is particularly well suited for engineers who have worked directly on complex physical products and can bring practical engineering judgment to evaluating embedded systems, firmware, digital hardware, flight software, hardware-in-the-loop testing, and real-world debugging workflows.

### Key Responsibilities

- Apply hands-on software, firmware, and digital hardware expertise to technically complex engineering tasks involving real physical systems.
    
- Review and evaluate **embedded firmware, FPGA/RTL designs, flight software, test automation frameworks, hardware interfaces, and system-level engineering workflows**.
    
- Analyze architecture and implementation trade-offs involving **real-time performance, timing, memory, compute resources, interfaces, reliability, fault handling, concurrency, and hardware/software integration**.
    
- Assess the technical correctness, robustness, and practical feasibility of engineering solutions for real-world embedded and hardware-connected systems.
    
- Identify implementation errors, incorrect assumptions, race conditions, timing issues, interface failures, resource constraints, and other system-level failure modes.
    
- Develop or review technically rigorous engineering problems, reference implementations, test cases, evaluation criteria, and supporting technical documentation.
    
- Draw on practical experience with **development, integration, hardware bring-up, debugging, verification, validation, test automation, and deployment**.
    
- Provide clear technical feedback grounded in real-world engineering experience and production hardware constraints.
    

### You’re a Strong Fit If You Have

- **5+ years of professional software, firmware, FPGA, or embedded systems engineering experience**, including at least **3 years of recent, actively hands-on experience** developing, integrating, testing, bringing up, or troubleshooting software/firmware on real hardware—not solely program or people management.
    
- Demonstrated experience as the **responsible engineer for production hardware-connected software or firmware**, owning meaningful portions of the lifecycle from requirements and architecture through implementation, integration, hardware bring-up, verification, validation, debugging, and deployment.
    
- Deep technical expertise in at least one core domain: **embedded firmware and real-time systems; FPGA/RTL design and verification; flight software and safety/mission-critical systems; or hardware test automation and hardware-in-the-loop infrastructure**.
    
- Strong practical command of relevant technologies such as **C/C++, Python, RTOS/bare-metal development, device drivers, bootloaders, embedded Linux, SPI/I²C/UART/CAN/Ethernet, Verilog/SystemVerilog/VHDL, FPGA toolchains, hardware interfaces, telemetry, and automated test systems**, as applicable to the candidate's specialization.
    
- Extensive hands-on experience **debugging software-hardware interactions and physical systems** using tools such as JTAG/SWD debuggers, logic analyzers, oscilloscopes, hardware simulators/emulators, HIL/SIL environments, automated test equipment, CI infrastructure, and structured root-cause analysis.
    
- Proven experience developing systems in **real-world product or hardware manufacturing environments**, ideally across aerospace/defense, space, automotive/EV, semiconductors, consumer electronics, robotics/eVTOL, industrial/energy, or medical devices—e.g., **Lockheed Martin, RTX, Boeing, Blue Origin, Rocket Lab, SpaceX, Tesla, Rivian, NVIDIA, Qualcomm, Intel, AMD, Apple, Google, Meta, Amazon, Skydio, Shield AI, Joby, Boston Dynamics, Siemens, ABB, Medtronic, or Intuitive Surgical**—with the ability to clearly explain architectural decisions, implementation trade-offs, test results, and failure mechanisms.
    

### Preferred Background

Experience working for a company that **designs, builds, tests, and manufactures physical hardware or embedded systems** is strongly preferred. Relevant organizations may include, but are not limited to:

- **Aerospace & Defense:**
    Lockheed Martin, Northrop Grumman, RTX, Boeing, General Atomics, L3Harris, BAE Systems, General Dynamics, Honeywell Aerospace, Textron
    
- **Space:**
    Blue Origin, Rocket Lab, Relativity Space, Firefly Aerospace, Sierra Space, Astranis, Planet, Maxar, Axiom Space
    
- **Automotive & EV:**
    Tesla, Rivian, General Motors, Ford, Lucid, Waymo, Zoox, Aptiv, Bosch
    
- **Semiconductors:**
    NVIDIA, Qualcomm, Intel, Analog Devices, Texas Instruments, Broadcom, Marvell, Micron, NXP, Infineon
    
- **Consumer Electronics & Computing:**
    Apple, Google Hardware, Meta Reality Labs, Microsoft Devices, Amazon, Samsung, Garmin, Sonos
    
- **Drones, eVTOL & Robotics:**
    Skydio, Shield AI, Zipline, Joby Aviation, Archer Aviation, Boston Dynamics, Figure, Agility Robotics, Wing
    
- **Industrial, Energy & Medical Devices:**
    Siemens, GE Aerospace, GE Vernova, ABB, Schneider Electric, Rockwell Automation, Enphase, Medtronic, Intuitive Surgical
    

Candidates from comparable hardware-focused organizations are equally encouraged to apply.

### Why Join

- Apply your software and firmware expertise to technically challenging problems at the intersection of **advanced hardware systems and AI research**.
    
- Work on projects where practical experience with **real hardware, embedded systems, FPGA/RTL, flight software, and test infrastructure** is highly valued.
    
- Help improve how advanced AI systems reason about **embedded development, hardware/software integration, digital design, real-time systems, testing, and debugging**.
    
- Contribute remotely with flexible engagement structures alongside experienced engineers and researchers.
    
- Work on problems requiring genuine engineering judgment and production experience rather than purely theoretical software knowledge.

Software & Firmware Engineering Experts

**Mercor is seeking experienced Mechanical Engineers** to support an advanced engineering and AI research initiative with a leading technology organisation. We are looking for deeply hands-on engineers who have designed, analysed, built, tested, validated, or troubleshot real-world mechanical and electromechanical systems in production environments.

Relevant backgrounds include:

- **Structural / Stress Engineering**
    
- **Thermal Engineering**
    
- **Mechanical Design Engineering**
    
- **Dynamics & Controls Engineering**
    

This role is particularly well suited for engineers who have worked directly on complex physical products and can bring practical engineering judgment to evaluating technical designs, analyses, testing workflows, failure modes, and real-world engineering problems.

### Key Responsibilities

- Apply hands-on mechanical engineering expertise to technically complex engineering tasks involving real physical systems and products.
    
- Review and evaluate mechanical designs, engineering analyses, simulation results, test methodologies, and troubleshooting approaches.
    
- Analyse engineering trade-offs involving **structures, materials, thermal performance, mechanical design, dynamics, vibration, controls, reliability, and manufacturability**.
    
- Assess the technical correctness and practical feasibility of engineering solutions generated for real-world mechanical engineering problems.
    
- Identify incorrect assumptions, unrealistic boundary conditions, design deficiencies, failure modes, and potential implementation or reliability risks.
    
- Develop or review technically rigorous engineering problems, reference solutions, evaluation criteria, and supporting technical documentation.
    
- Draw on practical experience with **design, simulation, prototyping, hardware integration, test, validation, qualification, debugging, and manufacturing**.
    
- Provide clear technical feedback grounded in real-world engineering experience and established engineering principles.
    

### You’re a Strong Fit If You Have

- **5+ years of professional mechanical engineering experience**, including at least **3 years of recent, actively hands-on experience** in hardware development, analysis, testing, validation, integration, bring-up, or troubleshooting—not solely program or people management.
    
- Demonstrated experience as the **responsible engineer for real hardware or physical systems**, owning meaningful portions of the engineering lifecycle from requirements and analysis through design, prototype development, testing, validation, qualification, and manufacturing readiness.
    
- Deep technical expertise in at least one core domain: **structural/stress analysis and FEA; thermal analysis, heat transfer, and thermal management; mechanical design and product development; or dynamics, vibration, mechanisms, and controls**.
    
- Strong practical command of **materials, loads and boundary conditions, structural margins, fatigue, thermal constraints, tolerances/GD&T, component selection, reliability, manufacturability, system integration, and engineering failure-mode analysis**.
    
- Extensive hands-on experience **analyzing, testing, debugging, and validating physical hardware**, using relevant engineering tools such as CAD/CAE, FEA, CFD/thermal simulation, dynamic or controls simulation, test instrumentation, data acquisition, and structured root-cause analysis.
    
- Proven experience developing hardware in **real-world product or manufacturing environments**, ideally across aerospace/defense, space, automotive/EV, semiconductors, consumer electronics, robotics/eVTOL, industrial/energy, or medical devices—e.g., **Lockheed Martin, RTX, Boeing, Blue Origin, Rocket Lab, Tesla, Rivian, NVIDIA, Qualcomm, Apple, Google, Meta, Skydio, Shield AI, Joby, Boston Dynamics, Siemens, GE Aerospace, ABB, Medtronic, or Intuitive Surgical**—with the ability to clearly explain technical decisions, design trade-offs, test results, and failure mechanisms.
    

### Preferred Background

Experience working for a company that **designs, builds, tests, and manufactures physical hardware products or systems** is strongly preferred. Relevant organisations may include, but are not limited to:

- **Aerospace & Defense:**
    Lockheed Martin, Northrop Grumman, RTX, Boeing, General Atomics, L3Harris, BAE Systems, General Dynamics, Honeywell Aerospace, Textron
    
- **Space:**
    Blue Origin, Rocket Lab, Relativity Space, Firefly Aerospace, Sierra Space, Astranis, Planet, Maxar, Axiom Space
    
- **Automotive & EV:**
    Tesla, Rivian, General Motors, Ford, Lucid, Waymo, Zoox, Aptiv, Bosch
    
- **Semiconductors:**
    NVIDIA, Qualcomm, Intel, Analog Devices, Texas Instruments, Broadcom, Marvell, Micron, NXP, Infineon
    
- **Consumer Electronics & Computing:**
    Apple, Google Hardware, Meta Reality Labs, Microsoft Devices, Amazon, Samsung, Garmin, Sonos
    
- **Drones, eVTOL & Robotics:**
    Skydio, Shield AI, Zipline, Joby Aviation, Archer Aviation, Boston Dynamics, Figure, Agility Robotics, Wing
    
- **Industrial, Energy & Medical Devices:**
    Siemens, GE Aerospace, GE Vernova, ABB, Schneider Electric, Rockwell Automation, Enphase, Medtronic, Intuitive Surgical
    

Candidates from comparable hardware-focused organisations are equally encouraged to apply.

### Why Join

- Apply your mechanical engineering expertise to technically challenging problems at the intersection of **advanced hardware engineering and AI research**.
    
- Work on projects where practical, real-world engineering experience and first-principles technical judgment are highly valued.
    
- Help improve how advanced AI systems reason about **mechanical design, structural analysis, thermal systems, dynamics, controls, testing, and hardware troubleshooting**.
    
- Contribute remotely with flexible engagement structures alongside experienced engineers and researchers.
    
- Work on problems that require genuine engineering judgment and hands-on industry expertise rather than purely theoretical knowledge.

Mechanical Engineering Experts

**Mercor is seeking experienced Electrical and Hardware Engineers** to support an advanced engineering and AI research initiative with a leading technology organisation. We are looking for deeply hands-on engineers who have designed, built, tested, brought up, debugged, or validated real-world hardware systems in production environments.

Relevant backgrounds include:

- **RF / Antenna Engineering**
    
- **Power Electronics Engineering**
    
- **Analog / Mixed-Signal Engineering**
    
- **Hardware / PCB Design Engineering**
    
- **Signal Integrity Engineering**
    

This role is particularly well suited for engineers who have worked directly on complex physical products and can bring practical engineering judgment to evaluating technical designs, troubleshooting workflows, and real-world hardware problems.

### Key Responsibilities

- Apply hands-on electrical and hardware engineering expertise to technically complex engineering tasks.
    
- Review and evaluate hardware designs, engineering workflows, technical analyses, and troubleshooting approaches.
    
- Analyse design trade-offs, failure modes, measurements, test results, and system-level engineering decisions.
    
- Assess the technical correctness and practicality of engineering solutions generated for real-world hardware problems.
    
- Identify errors, missing assumptions, unrealistic recommendations, and potential design or implementation risks.
    
- Develop or review technically rigorous engineering problems, reference solutions, evaluation criteria, or supporting documentation.
    
- Draw on practical experience with hardware development, validation, bring-up, debugging, manufacturing, and testing.
    
- Provide clear technical feedback grounded in real engineering experience and industry best practices.
    

### You’re a Strong Fit If You Have

- **5+ years of professional industry experience**, including at least **3 years of recent, actively hands-on experience** in hardware development, testing, bring-up, validation, or troubleshooting.
    
- Direct experience serving as the **responsible engineer** for substantial portions of a hardware development or engineering workflow, rather than solely managing engineering teams or projects.
    
- Deep expertise in at least one of the following areas:
    
    - RF systems, antennas, electromagnetic design, or RF validation
        
    - Power electronics, power conversion, motor drives, or power delivery
        
    - Analog or mixed-signal circuit design
        
    - PCB architecture, schematic design, board bring-up, or hardware debugging
        
    - Signal integrity, power integrity, high-speed interfaces, or system-level electrical validation
        
- Strong understanding of practical engineering constraints including component selection, tolerances, measurement, manufacturing, reliability, thermal considerations, and system integration.
    
- Experience debugging real hardware using relevant laboratory equipment, simulation tools, and engineering instrumentation.
    
- Ability to explain technical decisions, trade-offs, and failure modes clearly and rigorously.
    

### Preferred Background

Experience working for a company that **designs and manufactures physical hardware products** is strongly preferred. Relevant organisations may include, but are not limited to:

- **Aerospace & Defence:**
    Lockheed Martin, Northrop Grumman, RTX, Boeing, General Atomics, L3Harris, BAE Systems, General Dynamics, Honeywell Aerospace, Textron
    
- **Space:**
    Blue Origin, Rocket Lab, Relativity Space, Firefly Aerospace, Sierra Space, Astranis, Planet, Maxar, Axiom Space
    
- **Automotive & EV:**
    Tesla, Rivian, General Motors, Ford, Lucid, Waymo, Zoox, Aptiv, Bosch
    
- **Semiconductors:**
    NVIDIA, Qualcomm, Intel, Analogue Devices, Texas Instruments, Broadcom, Marvell, Micron, NXP, Infineon
    
- **Consumer Electronics & Computing:**
    Apple, Google Hardware, Meta Reality Labs, Microsoft Devices, Amazon, Samsung, Garmin, Sonos
    
- **Drones, eVTOL & Robotics:**
    Skydio, Shield AI, Zipline, Joby Aviation, Archer Aviation, Boston Dynamics, Figure, Agility Robotics, Wing
    
- **Industrial, Energy & Medical Devices:**
    Siemens, GE Aerospace, GE Vernova, ABB, Schneider Electric, Rockwell Automation, Enphase, Medtronic, Intuitive Surgical
    

Candidates from comparable hardware-focused organisations are equally encouraged to apply.

### Why Join

- Apply your engineering expertise to technically challenging problems at the intersection of **advanced hardware engineering and AI research**.
    
- Work on projects where practical, real-world engineering experience is highly valued.
    
- Help improve how advanced AI systems reason about electrical engineering, hardware design, testing, and troubleshooting.
    
- Contribute remotely with flexible engagement structures alongside experienced engineers and researchers.
    
- Work on problems that require genuine engineering judgment rather than purely theoretical knowledge.

Electrical & Hardware Engineering Experts

**Help a leading AI lab define what great design looks like, and build the prototypes that prove it.**

# 1\. Overview

A leading AI lab is looking for senior product designers and design-minded engineers with exceptional taste to help shape how its AI models design and build for the web and for games. You'll work directly with the lab's researchers to define what "great" looks like in UI and UX, and you'll build high-quality prototypes that show it. If you care deeply about great interfaces, like to prototype in code or with AI tools, and can explain why one design works better than another, this role is for you. This is a full-time commitment of 40 hours per week.

This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading AI lab as part of their extended workforce.

# 2\. Key Responsibilities

- Partner with AI researchers to identify best-in-class UI and UX patterns, and turn them into clear principles and rubrics that define what great design looks like.
    
- Build polished, interactive web prototypes, in code or with AI-native tools such as Cursor, v0, Lovable or Bolt, that showcase strong and diverse design patterns across many product categories.
    
- Review AI-generated interfaces and prototypes, and give specific, actionable written feedback on layout, hierarchy, interaction, motion and visual polish.
    
- Explore a wide range of visual styles, frameworks and animation approaches, from focused productivity tools to playful consumer apps and games.
    
- Collaborate with other designers and researchers to keep standards consistent and keep raising the quality bar.
    

# 3\. Core Qualifications

- 7+ years of experience as a product designer, design lead, design engineer, or creative front-end engineer at a product- or design-led company (for example Apple, Airbnb, Stripe, Figma, Linear, Spotify or Notion) or a top design agency.
    
- Hands-on prototyping skills: you build working web prototypes yourself, in code (HTML, CSS, JavaScript, React, Tailwind) or with AI-native tools (Cursor, v0, Lovable, Bolt, Framer).
    
- A strong grounding in user-centered design, interaction design and rapid prototyping.
    
- Senior-level design judgment, and the confidence to set direction and explain clearly why a design works.
    
- Ability to engage reliably for 40 hours/week during weekdays.
    
- Clear written communication and the ability to give precise, constructive design feedback.
    

**Nice to have:** Fluency with motion and animation (Framer Motion, GSAP, Rive, Lottie, After Effects) or 3D and WebGL, and game design experience in 2D or 3D. You don't need all of these to apply.

**About Cincinnatus LLC:**
Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

**Equal Employment Opportunity:**
Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Senior Product Designer, UI/UX

## About the work

**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is **[arXiv:2509.26574](https://arxiv.org/abs/2509.26574)** and we recommend reading it before applying. It will tell you quickly whether this work interests you.

We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.

This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment.

## Research areas in this panel

One area. We match narrowly: you need to have published on this specific phenomenon, not in biophysics broadly.

**1. Stochastic autocatalytic growth: chemical master equation, branching processes:** Autocatalytic reaction cycles, stochastic Hinshelwood cycle, chemical master equation processes, circulant matrix spectra, transient oscillations toward balanced exponential growth, moment hierarchies for reaction networks, generating-function methods.

If you also work on long-range dispersal, heavy-tailed jump processes or front propagation in range expansions, say so on the form. A closely related area sits in our statistical physics panel and draws on the same methods.

## Methods we expect to find in your own publications

You should be able to point to your own papers demonstrating **at least one** of the following families:

- Chemical master equation and the stochastic Hinshelwood cycle
- Multi-type branching processes and circulant matrix spectra
- Moment hierarchies for reaction networks
- Generating-function methods

## Who we are looking for

**A PhD in biophysics, statistical physics, applied mathematics or a closely related field.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.

**Published work on stochastic growth or reaction-network dynamics specifically.** This is the single most common reason we decline otherwise excellent researchers. Command of the methods is not enough if you have not published on the phenomenon itself.

**A verifiable publication record.** Three to five representative papers with arXiv IDs or DOIs, ideally from the last five years. First author strongly preferred. Every paper you list will be checked against the public record.

**Working proficiency with LaTeX, Python, SymPy and Jupyter.** Some familiarity with an agentic coding extension in VS Code is useful. Gaps there are acceptable if you declare them honestly.

**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.

## Application steps

1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and the area above if you are a fit. Give an arXiv ID or DOI of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
2. **We verify your papers and authorship** against the public record.
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.

## Commitment and rate

**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.

**$80 to $110 per hour**, set by depth of subdomain match.

Stochastic Biophysics Physicist (PhD)

## About the work

**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is **[arXiv:2509.26574](https://arxiv.org/abs/2509.26574)** and we recommend reading it before applying. It will tell you quickly whether this work interests you.

We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.

This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment.

## Research areas in this panel

Two areas, both on the linear stability of buoyancy-driven convection. We match narrowly: you need to have published on convection stability specifically, not on fluid dynamics broadly. Each area lists the methods it requires.

**1. Rayleigh-Benard convection: linear stability with mixed boundary conditions:** Rayleigh-Benard convection, Boussinesq approximation, linear stability analysis, normal-mode perturbation expansion, mixed mechanical and thermal boundary conditions, fixed-flux thermal forcing, marginal stability analysis, spectral eigenvalue methods.

**2. Porous-medium (Rayleigh-Darcy) convection: linear stability:** Darcy's law for porous-medium flow, Rayleigh-Darcy convection, Boussinesq buoyancy approximation, linear stability analysis, constant-flux and open boundary conditions, normal-mode perturbation expansion, marginal stability analysis, buoyancy-driven transport in saturated porous layers.

## Methods we expect to find in your own publications

You should be able to point to your own papers demonstrating **at least one** of the following families:

- Boussinesq approximation and buoyancy-driven flow
- Linear stability analysis and normal-mode perturbation expansion
- Marginal stability analysis and critical Rayleigh number determination
- Spectral eigenvalue methods
- Darcy's law and porous-medium flow

## Who we are looking for

**A PhD in fluid mechanics, applied mathematics, mechanical engineering or a closely related field.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.

**Published work on convection stability specifically.** This is the single most common reason we decline otherwise excellent researchers. Command of the methods is not enough if you have not published on the phenomenon itself.

**A verifiable publication record.** Three to five representative papers with DOIs or arXiv IDs, ideally from the last five years. First author strongly preferred. A journal DOI is expected here, since much of this literature is not on arXiv. Every paper you list will be checked against the public record.

**Working proficiency with LaTeX, Python and Jupyter.** Some familiarity with an agentic coding extension in VS Code is useful. Gaps there are acceptable if you declare them honestly.

**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.

## Application steps

1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and the areas above that you are the best fit for. For each area you select, give a DOI or arXiv ID of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
2. **We verify your papers and authorship** against the public record.
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.

## Commitment and rate

**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.

**$80 to $110 per hour**, set by depth of subdomain match.

Fluid Dynamics and Convection Stability Physicist (PhD)

## About the work

**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is [**arXiv:2509.26574**](https://arxiv.org/abs/2509.26574) and we recommend reading it before applying. It will tell you quickly whether this work interests you.

We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.

This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment. In this panel the standard of proof sits closer to mathematics than to physics.

## Research areas in this panel

Four areas. We match narrowly: you need to have published on one of these specific phenomena, not in mathematical physics broadly. Each area lists the methods it requires.

**1\. Special functions: hypergeometric identities and analytic continuation:** Gaussian hypergeometric functions, parameter differentiation of special functions, quadratic transformation identities for hypergeometric series, analytic continuation in a series index, digamma-function series, asymptotic and series expansions of special functions.

**2\. Integrable systems: half-wave maps, Lax pairs, Haldane-Shastry and Calogero-Moser:** Half-wave maps equation, Lax pair formalism and isospectral flows, Hilbert transform and singular integral operators, classical Haldane-Shastry spin chain, Calogero-Moser systems, hierarchies of conserved charges, solitons of integrable spin-field equations, numerical quadrature of singular integrals.

**3\. Permutation combinatorics for random tensor network entanglement (Cayley distance, Weingarten):** Cayley distance and geodesics in the symmetric group, minimal factorizations of permutations, non-crossing partitions, replica permutation spin models, random tensor network entanglement entropy, Weingarten calculus, multipartite entanglement measures, combinatorial enumeration of configurations.

**4\. Conformal geometry: Fefferman-Graham ambient metric, obstruction tensors:** Fefferman-Graham ambient metric construction, conformal geometry and Weyl covariance, extended obstruction tensors, Schouten and Weyl curvature tensors, order-by-order solution of Ricci-flatness conditions, poles and residues under dimensional continuation, Poincare-Einstein asymptotic expansions.

## Methods we expect to find in your own publications

You should be able to point to your own papers demonstrating **at least one** of the following families:

- Special function analysis: Gaussian hypergeometric functions, parameter differentiation, quadratic transformation identities, analytic continuation in a series index, asymptotic expansions
    
- Integrability: Lax pair formalism, isospectral flows, Hilbert transform and singular integral operators, hierarchies of conserved charges, numerical quadrature of singular integrals
    
- Combinatorial: Cayley distance and geodesics in the symmetric group, minimal factorizations of permutations, non-crossing partitions, Weingarten calculus, multipartite entanglement measures
    
- Geometric: Fefferman-Graham ambient metric construction, Weyl covariance, Schouten and Weyl curvature tensors, order-by-order solution of Ricci-flatness conditions, Poincare-Einstein asymptotic expansions
    

## Who we are looking for

**A PhD in mathematical physics, theoretical physics or mathematics.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.

**Published work on the specific phenomenon above, not the adjacent one.** This is the single most common reason we decline otherwise excellent physicists. Command of the methods is not enough if you have not published on the phenomenon itself.

**A verifiable publication record.** Three to five representative papers with arXiv IDs or DOIs, ideally from the last five years. First author strongly preferred. Every paper you list will be checked against the public record.

**Working proficiency with LaTeX, Python, SymPy and Jupyter.** Symbolic computation matters more in this panel than in most. Some familiarity with an agentic coding extension in VS Code is useful. Gaps there are acceptable if you declare them honestly.

**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.

## Application steps

1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and up to five of the areas above that you are the best fit for. For each area you select, give an arXiv ID or DOI of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
    
2. **We verify your papers and authorship** against the public record.
    
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
    
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.
    

## Commitment and rate

**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.

**$80 to $110 per hour**, set by depth of subdomain match.

Mathematical Physicist (PhD)

## About the work

**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is [**arXiv:2509.26574**](https://arxiv.org/abs/2509.26574) and we recommend reading it before applying. It will tell you quickly whether this work interests you.

We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.

This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment.

## Research areas in this panel

Five areas. We match narrowly: you need to have published on one of these specific phenomena, not in statistical physics broadly. Each area lists the methods it requires.

**1\. Disordered spin models and the Nishimori line, QEC thresholds, mixed-state topological order:** Replicated random-bond Ising model, Nishimori line and gauge symmetry of disordered spin models, quenched disorder averaging, Kramers-Wannier duality and square-lattice self-duality, Ashkin-Teller coupled Ising flavors, domain-wall free energy from twisted boundary conditions, exact lattice evaluation of Ising partition functions, decoherence-induced mixed-state topological order and quantum memory thresholds.

**2\. Entanglement entropy via the replica trick, Goldstone modes and tower of states:** Replica trick, analytic continuation in the replica index, Gaussian lattice sums and theta functions, Poisson summation and modular transformations, Renyi and von Neumann entanglement entropies, Goldstone modes and tower-of-states structure.

**3\. Range expansions with long-range dispersal, front propagation, heavy-tailed jumps:** Long-range dispersal kernels, heavy-tailed jump processes, stratified diffusion and coalescing colony models, self-consistent mean-field growth equations, convolution integral equations, asymptotic expansions with logarithmic corrections, front propagation in range expansions.

**4\. Lattice path enumeration and entanglement domain-wall statistical mechanics:** Lattice random walks with internal states, generating function methods, first-return decomposition of lattice paths, transfer-matrix partition functions, splitting and recombination of composite excitations, entanglement domain-wall statistical mechanics, weighted path enumeration.

**5\. Two-dimensional CFT: Ising minimal model, BPZ equations, conformal blocks, Coulomb gas:** Two-dimensional conformal field theory, Ising minimal model, Virasoro algebra and degenerate representations, BPZ null-vector differential equations, conformal blocks and crossing symmetry, operator product expansion and fusion rules, Coulomb gas integral representations, free-fermion and bosonization methods.

## Methods we expect to find in your own publications

You should be able to point to your own papers demonstrating **at least one** of the following families:

- Exact lattice methods: Kramers-Wannier duality, self-duality, transfer-matrix partition functions, exact evaluation of coupled Ising flavors
    
- Replica and field-theoretic: replica trick and analytic continuation in the replica index, Gaussian lattice sums and theta functions, Renyi and von Neumann entropies
    
- Asymptotic analysis: convolution integral equations, asymptotic expansions with logarithmic corrections, stratified diffusion, generating function methods
    
- Conformal: Virasoro algebra, degenerate representations, BPZ null-vector differential equations, operator product expansion and fusion rules, free-fermion and bosonization methods
    

## Who we are looking for

**A PhD in statistical physics, mathematical physics or a closely related field.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.

**Published work on the specific phenomenon above, not the adjacent one.** This is the single most common reason we decline otherwise excellent physicists. Command of the methods is not enough if you have not published on the phenomenon itself.

**A verifiable publication record.** Three to five representative papers with arXiv IDs or DOIs, ideally from the last five years. First author strongly preferred. Every paper you list will be checked against the public record.

**Working proficiency with LaTeX, Python, SymPy and Jupyter.** Some familiarity with an agentic coding extension in VS Code is useful. Gaps here are acceptable if you declare them honestly.

**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.

## Application steps

1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and up to five of the areas above that you are the best fit for. For each area you select, give an arXiv ID or DOI of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
    
2. **We verify your papers and authorship** against the public record.
    
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
    
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.
    

## Commitment and rate

**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.

**$80 to $110 per hour**, set by depth of subdomain match.

Statistical Physics and Thermodynamics Physicist (PhD)

## About the work

**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is [**arXiv:2509.26574**](https://arxiv.org/abs/2509.26574) and we recommend reading it before applying. It will tell you quickly whether this work interests you.

We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.

This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment.

## Research areas in this panel

Four areas, three in torsionful gravity and axion inflation and one in high-energy astrophysics. We match narrowly: you need to have published on one of these specific phenomena, not in gravitation broadly. Each area lists the methods it requires.

**1\. Einstein-Cartan and Nieh-Yan axion inflation: perturbations and power spectrum:** Einstein-Cartan-Palatini first-order gravity, Nieh-Yan topological invariant, spacetime torsion in the tetrad formalism, pseudoscalar axion inflation, natural inflation potentials, cosmological perturbation theory, Mukhanov-Sasaki mode equation, primordial curvature power spectrum, slow-roll approximation.

**2\. Einstein-Cartan and Nieh-Yan axion inflation: FRW background dynamics:** First-order Palatini formulation of gravity, tetrad and spin-connection variables, Einstein-Cartan gravity with torsion, Nieh-Yan topological term, axionic natural inflation potential, FRW background cosmological dynamics, numerical integration of background field equations.

**3\. Dynamical Chern-Simons gravity in Palatini formalism, parity-violating inflation:** First-order Palatini and Einstein-Cartan formulations of gravity, tetrad and spin-connection variables, spacetime torsion and contorsion decomposition, gravitational Chern-Simons coupling of a pseudoscalar to the Pontryagin density, parity violation in the gravitational sector, FRW background cosmology and slow-roll inflation, numerical integration of coupled cosmological field equations.

**4\. High-energy astrophysics: blazar jets, photohadronic emission, multimessenger constraints:** Relativistic jet beaming and Doppler boosting, photopion production at the Delta resonance, photohadronic interaction optical depth, electromagnetic cascade emission, synchrotron target photon fields, one-zone blazar emission modeling, variability-based causality constraints, multimessenger X-ray constraints.

## Methods we expect to find in your own publications

You should be able to point to your own papers demonstrating **at least one** of the following families:

- First-order gravity: Einstein-Cartan-Palatini formalism, tetrad and spin-connection variables, spacetime torsion and contorsion decomposition
    
- Topological terms in gravity: Nieh-Yan topological invariant, gravitational Chern-Simons coupling to the Pontryagin density
    
- Cosmological perturbation theory: Mukhanov-Sasaki mode equation, primordial curvature power spectrum, slow-roll approximation
    
- Numerical cosmology: integration of coupled background field equations in modified gravity
    
- Astroparticle modelling: relativistic beaming and Doppler boosting, photohadronic processes, electromagnetic cascades, one-zone emission models
    

## Who we are looking for

**A PhD in gravitation, cosmology, astroparticle physics or a closely related field.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.

**Published work on the specific phenomenon above, not the adjacent one.** This is the single most common reason we decline otherwise excellent physicists. Working in modified gravity is not enough if your papers are not on torsion, Nieh-Yan or Chern-Simons terms. Command of the numerical methods is not enough if you have not published on the phenomenon itself.

**A verifiable publication record.** Three to five representative papers with arXiv IDs or DOIs, ideally from the last five years. First author strongly preferred. Every paper you list will be checked against the public record.

**Sign-convention discipline.** Work in this area turns on tetrad and spin-connection conventions, and we are looking for people who are precise about them.

**Working proficiency with LaTeX, Python, SymPy and Jupyter.** Some familiarity with an agentic coding extension in VS Code is useful. Gaps here are acceptable if you declare them honestly.

**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.

## Application steps

1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and up to five of the areas above that you are the best fit for. For each area you select, give an arXiv ID or DOI of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
    
2. **We verify your papers and authorship** against the public record.
    
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
    
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.
    

## Commitment and rate

**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.

**$80 to $110 per hour**, set by depth of subdomain match.

Gravitation, Cosmology and Astrophysics Physicist (PhD)

## About the work

**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is **[arXiv:2509.26574](https://arxiv.org/abs/2509.26574)** and we recommend reading it before applying. It will tell you quickly whether this work interests you.

We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.

This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment.

## Research areas in this panel

Seven areas. We match narrowly: you need to have published on one of these specific phenomena, not in AMO broadly. Each area lists the methods it requires.

**1. Strong-field and high-harmonic generation, structured light and angular momentum:** High-harmonic generation, orbital angular momentum of structured light, spin angular momentum and optical helicity, angular momentum conservation selection rules, self-torque of light, strong-field light-matter interaction.

**2. Levitated optomechanics: optical binding and dipole-dipole coupled oscillators:** Levitated optomechanics, optical tweezers, optical binding, light-induced dipole-dipole interactions, Rayleigh point-dipole approximation, Gaussian beam propagation, nonreciprocal coupling, coupled harmonic oscillator normal modes.

**3. Levitated optomechanics: torsional and librational modes of anisotropic nanoparticles:** Levitated optomechanics, torsional and librational modes, anisotropic polarizability of dielectric ellipsoids, optical tweezers, light-induced dipole-dipole torques, rigid-body rotational dynamics, harmonic quantization of small oscillations, beam-splitter coupling Hamiltonians.

**4. Precision measurement: Penning-trap quantum cyclotron, cavity QED radiative shifts:** Geonium theory of Penning traps, single-electron quantum cyclotron, cavity quantum electrodynamics mode structure, quantization of the radiation field, non-relativistic perturbation theory, dipole approximation, radiative frequency shifts and self-energy subtraction, electron magnetic moment tests of quantum electrodynamics.

**5. Ultracold atoms in optical lattices: tight-binding and Wannier parametrization:** Optical lattice potentials from laser interference, AC Stark shift and atomic polarizability, tight-binding lattice Hamiltonians, Wannier function formalism, harmonic approximation of lattice wells, s-wave contact pseudopotential, recoil energy and deep-lattice expansion, quantum simulation with ultracold fermions.

**6. Cavity QED: Jaynes-Cummings, dark states, open-system steady states:** Cavity quantum electrodynamics, Jaynes-Cummings interaction, bright and dark atomic states, Lindblad master equations, spontaneous emission into free space, coherent states of the radiation field, steady states of open quantum systems, photon-number coherences and decoherence.

**7. Few-body physics: Efimov effect, hyperspherical methods, zero-range universality:** Efimov effect, hyperspherical coordinates and hyperangular channel functions, zero-range Bethe-Peierls boundary conditions, discrete scale invariance in the three-body problem, bosonic permutation symmetrization, universality at large scattering length, wave-function overlap integrals.

## Methods we expect to find in your own publications

You should be able to point to your own papers demonstrating **at least one** of the following families:

- Light-matter: high-harmonic generation, angular momentum conservation selection rules, strong-field light-matter interaction, AC Stark shift and atomic polarizability
- Trap and oscillator dynamics: optical tweezers, Gaussian beam propagation, rigid-body rotational dynamics, harmonic quantization of small oscillations, beam-splitter coupling Hamiltonians
- Open quantum systems: Lindblad master equations, spontaneous emission into free space, photon-number coherences and decoherence
- Precision QED: non-relativistic perturbation theory, dipole approximation, self-energy subtraction, radiative frequency shifts
- Lattice and few-body: Wannier function formalism, s-wave contact pseudopotential, hyperspherical coordinates, zero-range boundary conditions

## Who we are looking for

**A PhD in atomic, molecular or optical physics or a closely related field.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.

**Published work on the specific phenomenon above, not the adjacent one.** This is the single most common reason we decline otherwise excellent physicists. Command of the methods is not enough if you have not published on the phenomenon itself.

**A verifiable publication record.** Three to five representative papers with arXiv IDs or DOIs, ideally from the last five years. First author strongly preferred. Every paper you list will be checked against the public record.

**Working proficiency with LaTeX, Python, SymPy and Jupyter.** Some familiarity with an agentic coding extension in VS Code is useful. Gaps here are acceptable if you declare them honestly.

**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.

## Application steps

1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and up to five of the areas above that you are the best fit for. For each area you select, give an arXiv ID or DOI of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
2. **We verify your papers and authorship** against the public record.
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.

## Commitment and rate

**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.

**$80 to $110 per hour**, set by depth of subdomain match.

Atomic, Molecular and Optical Physicist (PhD)

## About the work

**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is **[arXiv:2509.26574](https://arxiv.org/abs/2509.26574)** and we recommend reading it before applying. It will tell you quickly whether this work interests you.

We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.

This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment.

## Research areas in this panel

Seven areas. We match narrowly: you need to have published on one of these specific phenomena, not in high energy theory broadly. Each area lists the methods it requires.

**1. AdS/BCFT, end-of-the-world branes, black hole interiors:** AdS/BCFT correspondence, Karch-Randall end-of-the-world branes, geodesic approximation for heavy bulk fields, thermal one-point functions, BTZ black hole geometry, black hole interior behind the horizon.

**2. LaMET and quasi-PDFs: matching kernels and DGLAP evolution:** Large-momentum effective theory, quasi-parton distribution functions, pion parton distribution functions, perturbative matching kernels, modified minimal subtraction renormalization, plus distributions, DGLAP evolution, renormalization-group resummation of logarithms, one-loop running coupling.

**3. LaMET and quasi-PDFs: one-loop perturbative QCD and renormalization:** Perturbative quantum chromodynamics, large-momentum effective theory, quasi-parton distribution functions, one-loop Feynman diagram computation, dimensional regularization, MS-bar renormalization scheme, superficial degree of divergence analysis, soft and collinear infrared divergences.

**4. LaMET and quasi-PDFs: Coulomb gauge matching and lattice QCD parton structure:** Large-momentum effective theory, Coulomb gauge fixing, quasi-parton distribution functions, perturbative matching kernels, one-loop QCD corrections, dimensional regularization, MS-bar renormalization scheme, lattice QCD calculations of parton structure.

**5. Ultralight vector (dark photon) dark matter in laser interferometers:** Ultralight vector dark matter, dark photon coupled to the baryon-minus-lepton current, laser interferometric gravitational-wave detection, differential test-mass forces from composition-dependent charge-to-mass ratios, strain noise spectral density and detector sensitivity curves, coherent signal integration and signal-to-noise scaling, local dark matter density normalization, coherence time of a stochastic ultralight field.

**6. Matrix models and invariant theory: Grassmann-valued invariants, Molien-Weyl and Hilbert series:** Adjoint matrix models, Grassmann-valued matrix invariants, gauge-invariant operator counting, trace relations, Cayley-Hamilton identities, Molien-Weyl formula, plethystic Hilbert series, primary and secondary invariants.

**7. Superconformal and Witten index, finite-N trace relations, plethystic counting:** Witten index, superconformal index, adjoint fermion matrix models, trace relations at finite N, Grassmann-valued matrix invariants, Molien-Weyl formula, plethystic counting of gauge invariants, finite-rank corrections to large-N counting.

## Methods we expect to find in your own publications

You should be able to point to your own papers demonstrating **at least one** of the following families:

- Holographic: AdS/CFT and AdS/BCFT correspondence, geodesic approximation, thermal one-point functions
- Perturbative QCD: one-loop Feynman diagram computation, dimensional regularization, MS-bar renormalization, soft and collinear divergences
- Effective field theory: large-momentum effective theory, perturbative matching kernels, renormalization-group resummation of logarithms
- Lattice: lattice QCD calculations of parton structure, gauge fixing
- Group-theoretic: gauge-invariant operator counting, trace relations, Cayley-Hamilton identities, Molien-Weyl formula, plethystic counting
- Astroparticle and detector: interferometric gravitational-wave detection, strain noise spectral density, signal-to-noise scaling

## Who we are looking for

**A PhD in high energy theory, nuclear theory or a closely related field.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.

**Published work on the specific phenomenon above, not the adjacent one.** This is the single most common reason we decline otherwise excellent physicists. Command of the methods is not enough if you have not published on the phenomenon itself.

For the quasi-PDF areas specifically, we need **loop-calculation experience, not lattice experience alone.**

**A verifiable publication record.** Three to five representative papers with arXiv IDs or DOIs, ideally from the last five years. First author strongly preferred. Every paper you list will be checked against the public record.

**Working proficiency with LaTeX, Python, SymPy and Jupyter.** Some familiarity with an agentic coding extension in VS Code is useful. Gaps here are acceptable if you declare them honestly.

**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.

## Application steps

1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and up to five of the areas above that you are the best fit for. For each area you select, give an arXiv ID or DOI of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
2. **We verify your papers and authorship** against the public record.
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.

## Commitment and rate

**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.

**$80 to $110 per hour**, set by depth of subdomain match.

High Energy Physicist (PhD)

## About the work

**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is **[arXiv:2509.26574](https://arxiv.org/abs/2509.26574)** and we recommend reading it before applying. It will tell you quickly whether this work interests you.

We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.

This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment.

## Research areas in this panel

Twelve areas. We match narrowly: you need to have published on one of these specific phenomena, not in quantum information broadly. Each area lists the methods it requires.

**1. Distributed quantum sensing and metrology with GHZ probes under noise:** Distributed quantum sensing, quantum Fisher information, Greenberger-Horne-Zeilinger entangled probe states, GHZ-diagonal noisy states, Lindblad master equations, multiparameter phase estimation, entanglement distribution in quantum networks.

**2. Quantum optics: two-mode squeezing, SU(1,1) interferometry, homodyne detection with loss:** Optical parametric amplification, two-mode squeezed vacuum, two-photon formalism for sideband modes, Bogoliubov transformation of field operators, SU(1,1) nonlinear interferometry, cascaded phase-sensitive amplification with intermediate loss, balanced homodyne detection of quadrature sidebands, beam-splitter model of optical loss and detection inefficiency.

**3. Quantum Shannon theory: Holevo and accessible information, classical capacity:** Holevo information, accessible information of quantum ensembles, classical capacity of quantum channels, classical-quantum states, von Neumann entropy, optimality conditions for information-maximizing ensembles, convex optimization over probability distributions.

**4. Holographic codes and random tensor networks, Haar averaging over O(N):** Non-isometric holographic codes, Haar averaging over the orthogonal group, Weingarten calculus, random tensor network models of holography, moments of random linear maps, post-selection onto fiducial states, black hole interior reconstruction.

**5. Matrix product states, sequential generation, holographic quantum simulation:** Matrix product states, finitely correlated states, sequential generation of matrix product states, isometric tensor network circuits, transfer-matrix formalism for correlation functions, exponential decay of correlations, holographic quantum simulation, bond dimension and entanglement structure.

**6. Eigenstate-to-Hamiltonian construction, commutant algebras, integrals of motion:** Eigenstate-to-Hamiltonian construction, symmetric Hamiltonian construction from integrals of motion, quantum covariance matrix method, commutant algebras of local Hamiltonian families, Pauli string operator bases, Jordan-Wigner transformation, exact diagonalization of spin chains.

**7. Quantum-limited imaging and superresolution: QFI, spatial-mode demultiplexing:** Quantum Fisher information, quantum Cramer-Rao bound, Sudarshan-Glauber P representation, mutual coherence matrix of thermal sources, point spread function and diffraction-limited imaging, weak-source single-photon regime, spatial-mode demultiplexing, direct imaging and the Rayleigh resolution limit.

**8. Quantum walks and spatial search on graphs, degenerate perturbation theory:** Continuous-time quantum walk, spatial search on graphs, graph adjacency matrix spectra, simplex of complete graphs and truncated simplex lattices, degenerate perturbation theory, symmetry-reduced invariant subspaces, critical jumping rate and avoided level crossing.

**9. Quantum foundations: higher-order interference, Sorkin parameter, GPTs as information resource:** Higher-order interference, Sorkin parameter, multipath single-particle interferometry, spatial superposition as an information resource, generalized probabilistic theories, classical correlation polytopes, fingerprinting inequality, single-particle multiple access channels.

**10. Quantum foundations: generalized noncontextuality, KCBS, ontological models:** Generalized noncontextuality, Kochen-Specker contextuality, KCBS inequality, noncontextual ontological models, generalized probabilistic theories, simplex embedding, linear programming for nonclassicality, unsharp measurements and POVMs, white-noise robustness.

**11. Quantum Shannon theory: private states, quantum and private capacity, superactivation:** Private states and private bits, Choi-Jamiolkowski channel-state duality, quantum capacity and coherent information, private capacity of quantum channels, Werner states and symmetric subspace projections, degradable and antidegradable channels, superadditivity and superactivation of quantum capacity, spin alignment conjecture.

**12. Quantum relative entropy, strong data processing, contraction coefficients of qubit channels:** Quantum relative entropy, data processing inequality for relative entropy, contraction coefficients of quantum channels, strong data processing inequalities, qubit amplitude damping channel, monotone Riemannian metrics and the Bogoliubov-Kubo-Mori metric, Bloch-sphere representation of qubit channels, trace-distance contraction bounds.

## Methods we expect to find in your own publications

You should be able to point to your own papers demonstrating **at least one** of the following families:

- Entropic and information-theoretic: von Neumann entropy, Holevo bound, coherent information, contraction coefficients, Choi-Jamiolkowski duality
- Open quantum systems: Lindblad master equations, quantum channels, degradable and antidegradable channels, amplitude damping and dephasing models
- Random matrix and Haar integration: Weingarten calculus, moments of random linear maps, Haar averaging over the orthogonal group
- Tensor network: matrix product states, transfer-matrix formalism, isometric tensor network circuits, exact diagonalization of spin chains
- Convex and geometric: convex optimization over probability distributions, simplex embedding, correlation polytopes, linear programming for nonclassicality
- Estimation theory: quantum Fisher information, quantum Cramer-Rao bounds, multiparameter phase estimation

## Who we are looking for

**A PhD in quantum information, quantum optics or a closely related field.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.

**Published work on the specific phenomenon above, not the adjacent one.** This is the single most common reason we decline otherwise excellent physicists. Having applied the information-theoretic toolkit elsewhere is not enough if your papers are not on the phenomenon in question.

**A verifiable publication record.** Three to five representative papers with arXiv IDs or DOIs, ideally from the last five years. First author strongly preferred. Every paper you list will be checked against the public record.

**Working proficiency with LaTeX, Python, SymPy and Jupyter.** Some familiarity with an agentic coding extension in VS Code is useful. Gaps here are acceptable if you declare them honestly.

**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.

## Application steps

1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and up to five of the areas above that you are the best fit for. For each area you select, give an arXiv ID or DOI of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
2. **We verify your papers and authorship** against the public record.
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.

## Commitment and rate

**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.

**$80 to $110 per hour**, set by depth of subdomain match.

Quantum Information Science Physicist (PhD)

## About the work

**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is **[arXiv:2509.26574](https://arxiv.org/abs/2509.26574)** and we recommend reading it before applying. It will tell you quickly whether this work interests you.

We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.

This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment.

## Research areas in this panel

Nineteen areas. We match narrowly: you need to have published on one of these specific phenomena, not in condensed matter broadly. Each area lists the methods it requires.

**1. One-dimensional field theory: bosonization, Majorana and Ising-Luttinger sectors, RG:** Abelian bosonization, Majorana fermion field theory in one dimension, coupled Ising and Luttinger-liquid sectors, scaling dimensions of vertex operators, one-loop renormalization-group flow equations, operator product expansion, commensurate-incommensurate transition.

**2. Parafermion zero modes, non-Abelian braiding, FQH-superconductor heterostructures:** Parafermion zero modes, ZN parafermion algebra, non-Abelian braiding statistics, fusion channels of topological defects, fractional Josephson effect, adiabatic evolution and Berry phases, fractional quantum Hall-superconductor heterostructures.

**3. Rational CFT, Verlinde lines, non-Abelian quantum Hall edge theories:** Rational conformal field theory on the torus, Verlinde lines as topological defect lines, modular S matrix and the Verlinde formula, Moore-Read non-Abelian quantum Hall state, chiral edge theories of quantum Hall states, fusion categories and non-invertible symmetries, modular invariance of the primary field spectrum.

**4. SPT and Haldane phase, matrix product states, decoherence of topological order:** AKLT valence-bond-solid model, Haldane phase and symmetry-protected topological order, string order parameters, matrix product states, transfer-matrix evaluation of correlation functions, Kraus-operator quantum channels, decoherence-induced mixed-state topological order.

**5. Flat-band Hubbard models, flat-band ferromagnetism, Hartree-Fock and DQMC:** Checkerboard-lattice Hubbard model, topological nearly flat bands, flat-band ferromagnetism, Hartree-Fock mean-field theory, Stoner ferromagnetic instability, interaction-driven quantum phase transitions, determinant quantum Monte Carlo.

**6. SYK model, large-N disordered fermions, Schwinger-Dyson thermodynamics:** Sachdev-Ye-Kitaev model, low-rank random couplings, Majorana fermions, quenched disorder averaging, large-N melonic diagrammatics, Schwinger-Dyson equations, thermodynamic free energy, residual zero-temperature entropy.

**7. Correlated electron transport: Hubbard model, Kubo formalism, diagrammatic perturbation theory:** Hubbard model, Fermi-liquid theory, Kubo linear-response formalism, perturbative diagrammatic expansion in the interaction, Matsubara Green's function technique, vertex corrections and momentum relaxation, electron-electron scattering on a lattice, low-density expansion near a band edge.

**8. Wigner crystallization, two-component Coulomb systems, quantum melting:** Wigner crystallization, two-component Coulomb crystallization, critical mass ratio for quantum crystals, electron-hole bilayers, Wigner-Seitz coupling parameter, Lindemann criterion for quantum melting, dimensional analysis of competing energy scales, quantum Monte Carlo phase diagrams.

**9. Quantum geometry, Wannier obstruction, Z2 topological invariants (Kane-Mele and Wilson loop):** Quantum geometric tensor, quantum metric, gauge-invariant Wannier spread, maximally localized Wannier functions, Kane-Mele time-reversal Z2 invariant, Wilson loop and Wannier charge center winding, continuum models with plane-wave expansion, Wannier obstruction and exponential localization, Rashba spin-orbit coupling.

**10. Hatsugai-Kohmoto model, Mott physics, quasiparticle scattering and RG stability:** Hatsugai-Kohmoto model, Mott insulators and Hubbard bands, Fermi liquid theory, quasiparticle scattering rates and lifetimes, phase-space constraints on fermion-fermion scattering, renormalization-group stability of interacting fixed points.

**11. Schwinger-Keldysh EFT, dissipative hydrodynamics, fracton and multipole symmetries:** Schwinger-Keldysh effective field theory, dissipative hydrodynamics, multipole and dipole symmetries, fracton phases of matter, spontaneous symmetry breaking and Goldstone stiffness, superfluid stiffness and susceptibilities, derivative expansion power counting, hydrodynamic mode dispersion relations.

**12. Quantum Monte Carlo for the 2D electron gas: DMC, finite-size corrections:** Diffusion Monte Carlo, Slater-Jastrow trial wave functions, two-dimensional finite-size corrections and thermodynamic-limit extrapolation, periodic boundary conditions with long-range Coulomb interactions, static structure factor and pair correlation functions, random phase approximation for long-wavelength fluctuations, Fermi liquid theory.

**13. Dirac materials transport: Coulomb disorder, nonlinear screening, Boltzmann transport:** Dirac fermions in graphene, charged impurity Coulomb disorder, nonlinear screening and Thomas-Fermi theory, electron-hole puddles, self-consistent transport theory, topological insulator surface states, long-range versus short-range scattering, Boltzmann transport and mean free path.

**14. Topological crystalline insulators: disclinations, fractional charge, filling anomaly:** Topological crystalline insulators, band representations and Wyckoff positions, Wannier orbital angular momentum under rotation symmetry, disclination defects and Frank angle, translation-equivalence classes of lattice defects, fractional charge quantization, filling anomaly, discrete shift invariant.

**15. Kitaev honeycomb model, Z2 gauge theory, exactly solvable spin liquids:** Kitaev honeycomb model, Majorana fermionization of spins, Z2 lattice gauge theory and flux sectors, exactly solvable quantum spin liquids, fermion parity projection onto physical states, topological ground-state degeneracy on a torus, Bogoliubov-de Gennes diagonalization, exact diagonalization of finite lattices.

**16. Semiclassical thermoelectric transport: anisotropic Seebeck, bipolar conduction:** Semiclassical Boltzmann transport theory, relaxation-time approximation, anisotropic effective-mass tensors, Seebeck coefficient and thermopower, bipolar transport in intrinsic semiconductors, axis-dependent conduction polarity, two-band electronic structure models.

**17. Inelastic neutron scattering theory: multiphonon expansion, dynamic structure factor:** Inelastic neutron scattering, multiphonon expansion of the scattering law, quantum harmonic oscillator response, incoherent dynamic structure factor, Debye-Waller factor, bound-atom scattering cross section, low-temperature limit of the scattering law, neutron total cross section.

**18. Magnetic space groups, neutron-diffraction magnetic structure, magneto-optics:** Magnetic space groups, Belov-Neronova-Smirnova notation, Wyckoff position analysis, magnetic propagation vectors from neutron diffraction, multi-k magnetic structures, irreducible representation analysis of magnetic order, time-reversal symmetry breaking, symmetry-adapted tensor properties, magneto-optic Kerr effect.

**19. Crystallography of modulated structures: kinematic diffraction, superspace symmetry:** Kinematic diffraction theory, crystal structure factor, displacively modulated crystal structures, satellite and superlattice reflections, reciprocal lattice and Brillouin zone indexing, diffraction selection rules and extinction conditions, superspace symmetry of modulated crystals, longitudinal static strain waves in crystals.

## Methods we expect to find in your own publications

You should be able to point to your own papers demonstrating **at least one** of the following families:

- Field-theoretic: bosonization, conformal field theory on the torus, Schwinger-Keldysh effective field theory, renormalization-group flow
- Many-body numerics: quantum Monte Carlo (diffusion and determinant), exact diagonalization, matrix product states, transfer-matrix methods
- Band theory and topology: Wannier functions, Berry phases, Wilson loops, Wyckoff positions, band representations
- Response and transport: Kubo linear response, Matsubara Green's functions, diagrammatic perturbation theory, Boltzmann transport
- Scattering and symmetry analysis: neutron scattering theory, magnetic space groups, irreducible representation analysis, kinematic diffraction

## Who we are looking for

**A PhD in condensed matter physics or a closely related field.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.

**Published work on the specific phenomenon above, not the adjacent one.** This is the single most common reason we decline otherwise excellent physicists. Publishing on topological order generally is not enough if your papers are not on the particular model in question. Command of the methods is not enough if you have not published on the phenomenon itself.

**A verifiable publication record.** Three to five representative papers with arXiv IDs or DOIs, ideally from the last five years. First author strongly preferred. Every paper you list will be checked against the public record.

**Working proficiency with LaTeX, Python, SymPy and Jupyter.** Some familiarity with an agentic coding extension in VS Code is useful. Gaps here are acceptable if you declare them honestly.

**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.

## Application steps

1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and up to five of the areas above that you are the best fit for. For each area you select, give an arXiv ID or DOI of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
2. **We verify your papers and authorship** against the public record.
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.

## Commitment and rate

**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.

**$80 to $110 per hour**, set by depth of subdomain match.

Condensed Matter Physicist (PhD)

Mercor is partnering with a leading AI research lab to build next-generation text-to-speech (TTS) systems capable of producing natural, expressive, and human-like voices. We are seeking **South Africa-based native English speakers with authentic South African accents** to contribute high-quality voice recordings for training and evaluating cutting-edge speech models. This role is open to both experienced voice professionals and newcomers with a naturally clear, expressive voice and a good recording setup — prior voice-acting experience is a plus but not required.

**This is an ongoing opening — we onboard new voices on a rolling basis, so applications are always welcome. The engagement itself is a single recording session of approximately 4 hours. A second session of similar length may follow depending on the client's needs, though this isn't guaranteed.**

**Your voice recordings will be used exclusively for the client's internal CX AI Agent. They will not be sold, licensed, or reused for any other product, dataset, or purpose.**

* * *

### **Key Responsibilities**

- Record high-quality voice samples across diverse scripts (conversational, narrative, instructional, etc.)
    
- Deliver **clear, natural, and expressive speech** with strong control over tone, pacing, and pronunciation
    
- Maintain **consistency in voice, accent, and delivery** across recording sessions
    
- Follow detailed recording guidelines (environment, microphone setup, file formatting)
    
- Perform multiple takes with variation in emotion, emphasis, and style when required
    

### **Requirements**

- **Native English speaker with an authentic South African accent, currently based in South Africa**
    
- A clear, natural, and expressive voice (prior voice acting, narration, or broadcast experience is a plus, not required)
    
- Access to a **professional or near-professional recording setup** (quality microphone, quiet environment, pop filter, etc.)
    
- Strong command of **intonation, diction, and emotional range**
    
- Ability to follow scripts precisely while maintaining natural delivery
    
- Availability for **a single ~4-hour recording session**, with the possibility of a further session of similar length later on
    
- **\[IMP\]: Your voice may be cloned for the client's CX AI Agent so please only apply if you are okay with voice cloning. Your recordings will not be sold or reused outside of this specific use case.**
    

### **Preferred Qualifications**

- Experience recording for **TTS, audiobooks, IVR systems, or AI voice datasets**
    
- Familiarity with audio editing tools (e.g., Audacity, Adobe Audition, Reaper)
    
- Ability to deliver **multiple vocal styles** (e.g., conversational, corporate, energetic, calm)
    

* * *

Voice Actor: CX Agent Voice Cloning (South African English)

**About the Role**

Mercor is hiring experienced **Securities, Commodities, and Financial Services Sales Agents** to help evaluate and improve cutting-edge AI systems. In this role, you'll evaluate AI-generated securities, commodities, and financial services content and workflows, leveraging your real-world expertise in buying and selling securities or commodities and advising clients on investments and market conditions.

**Key Responsibilities**

- Evaluate AI-generated trade recommendations, investment proposals, suitability assessments, and other securities and commodities artifacts for quality and accuracy.

- Compare AI-generated responses head-to-head based on financial soundness, regulatory compliance, and analytical rigor.

- Review scenarios involving securities and commodities transactions, portfolio recommendations, market analysis, and client advisory work and provide expert feedback.

**Required Qualifications**

- **4+ years** of experience as a Securities Sales Agent, Commodities Broker, Stockbroker, Investment Advisor, Financial Services Sales Agent, or another closely related securities, commodities, or financial services sales role.

- Experience buying and selling securities or commodities in an investment or trading firm, or providing financial services to businesses and individuals, including advising customers on stocks, bonds, mutual funds, commodities, and market conditions.

- Ability to commit **20+ hours per week**.

- Strong written English communication skills.

**Additional Information**

- Start date: Immediate

- Duration: Approximately 4–6 weeks

- Payment: task-based (payment upon first task approval). Experts who complete their first task within the required timeline will then be qualified to be paid hourly for the remainder of the project.

Securities, Commodities, and Financial Services Sales Agents

## About the work

Mercor is designing a benchmark that measures how well AI agents do real enterprise cyber defense work. Before we build it, we want to hear from people who do that work every day.

This is a short paid research engagement, not a task or data project. You will join two to three one-hour video conversations with the Mercor team over roughly four weeks, scheduled around your availability.

## What we will talk about

- How your work actually happens: the tools you live in, what lands in your queue, where judgment matters and where it does not.
- How your team measures whether a triage, investigation, containment, hunt, detection rule or patch was done well.
- Where AI assistance helps you today, where it gets in the way, and what would make a benchmark of AI on this work credible to you.
- Our draft task taxonomy: what is missing, what is mislabeled, what you would weight differently.

## Who we are looking for

Current or recent hands-on practitioners in enterprise security, for example:

- SOC analysts and SOC leads (tier 2 and above)
- Incident responders and digital forensics investigators
- Detection engineers and threat hunters
- Application security or product security engineers who find and fix vulnerabilities in production code
- Security engineers who have run or been on the receiving end of a red team engagement

Experience with an EDR and SIEM stack (CrowdStrike Falcon, Microsoft Defender and Sentinel, Splunk, SentinelOne, Elastic or similar) is a plus. Security leaders are welcome if you are still close to the work.

## Pay and time

- Paid hourly for interview time as a spot bonus. Sessions are one hour; no prep is expected.
- Two to three sessions in total. Nothing to build, label or submit.
- Remote, US-based.

## Confidentiality

We will ask you to describe patterns, not specific incidents, and to leave out anything confidential about current or former employers or customers. Your input is used only to design the benchmark and is never attributed to you or your employer.

Cybersecurity Practitioner: Paid Expert Interviews (SOC, Incident Response, Detection, AppSec)

**Join a product engineering team building native mobile and full-stack experiences used by customers every day.**

# 1\. Overview

We're partnering with a large enterprise technology organization to place a Staff Software Engineer on the team behind its Android and iOS apps. It's a mobile-first role, but engineers here also pitch in on backend services, APIs, and web, and use AI coding tools as a normal part of their day. If you enjoy owning features end to end and learning new parts of the stack, this is a great fit. This is a full-time commitment of 40 hours per week.

This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed within a leading enterprise client's engineering organization as part of their extended workforce.

# 2\. Key Responsibilities

- Build and ship features for the team's native mobile apps, mainly Android in Kotlin.
    
- Contribute beyond mobile when needed, across backend services, APIs, and web applications.
    
- Use AI-powered developer tools to get up to speed on unfamiliar code and ship with quality.
    
- Take part in technical design, code reviews, and production support.
    
- Work closely with Product, UX, and partner engineering teams, and help other engineers grow.
    

# 3\. Core Qualifications

- 6+ years of professional software engineering experience.
    
- Hands-on native mobile experience, ideally Android with Kotlin and Jetpack. iOS/Swift is welcome too, and Flutter or React Native experience counts if you've also done some native work.
    
- Some production experience outside mobile, such as backend services, APIs, or web apps.
    
- Solid engineering fundamentals: design, testing, and debugging.
    
- Comfortable using AI coding tools such as Copilot, Cursor, or Claude.
    
- Ability to engage reliably for at least 40 hours/week during weekdays.
    
- Clear communication and a collaborative, curious mindset.
    

**Nice to have:** exposure to LLM-powered features (RAG, embeddings, agents), experience with accessibility standards, or work on apps with accounts, payments, or orders. You don't need all of these to apply.

**About Cincinnatus LLC:**
Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

**Equal Employment Opportunity:**
Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Staff Software Engineer, Mobile (Android, Kotlin, Full Stack)

**Join a high-scale consumer platform team as a Senior Backend Engineer, building the services behind digital experiences used by millions of people every day.**

# 1\. Overview

We're partnering with a large enterprise technology organization to place a Senior Software Engineer on a platform team that powers its core customer-facing experiences across web and mobile. The team works across Engineering, UX, Product, Business, and Analytics to ship fast, iterate through continuous experimentation and customer feedback, and integrate advanced capabilities such as Generative AI into production services. We're seeking senior backend engineers with hands-on Node.js, TypeScript, and Rust experience and a deep understanding of how the web works at scale. This is a full-time commitment of 40 hours per week.

This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed within a leading enterprise client's engineering organization as part of their extended workforce.

# 2\. Key Responsibilities

- Lead delivery of scoped features through collaborative engineering teams, keeping work aligned with platform and system objectives.
    
- Design, develop, test, and maintain high-quality, efficient services in Node.js, TypeScript, and Rust, across the full software lifecycle and CI/CD.
    
- Build and optimize server-to-server integrations and API layers (REST and GraphQL) that serve high-traffic, customer-facing applications.
    
- Integrate AI/ML capabilities into product services and use generative AI tools to improve engineering productivity.
    
- Contribute to solution design, conduct code reviews, and apply best practices for scalable, secure, and maintainable systems.
    
- Monitor application performance, support defect resolution, and drive continuous improvement.
    
- Mentor peers and contribute to knowledge sharing and engineering excellence across the team.
    

# 3\. Core Qualifications

- 5+ years of professional software engineering experience (or a Bachelor's degree in Computer Science or a related field and 3+ years), building production systems at a recognized, high-scale organization.
    
- Hands-on production coding experience in Node.js and TypeScript on the backend.
    
- Hands-on coding experience in Rust, in production services, performance-critical modules, or substantial systems work.
    
- Strong web fundamentals: HTTP semantics, cookies, headers, caching, sessions, and server-to-server communication patterns (auth between services, timeouts, retries).
    
- Experience building or operating high-traffic, consumer-facing web platforms.
    
- Experience with GraphQL on Node.js (schema design, resolvers, federation) is a plus.
    
- Familiarity with web accessibility standards is a plus.
    
- Demonstrable career progression to senior-level ownership.
    
- Ability to engage reliably for at least 40 hours/week during weekdays.
    
- Excellent written and verbal communication skills, and the ability to explain complex technical concepts clearly to broad audiences.
    

**About Cincinnatus LLC:**
Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

**Equal Employment Opportunity:**
Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Senior Software Engineer, Backend (Node.js, TypeScript, Rust)

Mercor is conducting a paid research study in collaboration with a leading research partner. We are seeking people in **Brazil** who manage their personal finances and have financial ties to the United States to take part in a short online survey about banking, spending, and cross-border money management. Insights gathered will help inform research into how people manage their finances.

## Responsibilities

Participants will be asked to:

- Complete a structured ~20-minute online survey

- Provide a mix of multiple-choice answers and **8–10 short open-ended responses**

- Share perspectives on their banking relationships and how they manage money between Brazil and the United States

- Submit all responses within the given timeline

## Requirements

- **18 years of age or older**

- Reside in **Brazil**

- Individual monthly income at a professional/affluent level

- Main banking relationship with a bank such as **XP, BTG Pactual, Nubank, or Inter**

- **Own property in the United States and/or financially support someone who lives there**

- Able to independently complete a ~20-minute online survey

## Engagement Details

- **Format:** Online survey (multiple-choice questions + open-ended responses)

- **Duration:** Approximately 20 minutes

- **Compensation:** One-time payment upon successful verification of the submission

- **Location:** Remote (Brazil)

## Why Participate

- Contribute to research shaping the next generation of AI tools

- Share your real-world experience managing money in Brazil and across borders

Brazil Personal & Cross-Border Finance – Paid Research Study

Mercor is hiring experienced **private equity associates** to build a financial model from a synthetic deal document pack, then peer-review models built by two other contractors on the same transaction.

### What you'll do

- Build a working financial model of an assigned **consumer / leisure** transaction from a synthetic deal document pack
    
- Deliver an editable Excel workbook with live formulas, source references, and stated assumptions
    
- Peer-review two anonymized models from other contractors against a fixed set of criteria, with a short written rationale for each and a completed review scorecard
    

### Requirements

- **2–4 years total experience**: ~2 years investment banking (Consumer / Retail or generalist M&A — ideally Paris, London, or elsewhere in Europe) followed by 1–2 years in mid-market or large-cap private equity
    
- Currently or recently an **Associate at a mid-market or large-cap PE fund with a consumer / leisure / multi-site services focus** (fitness clubs, owned vs. franchise, multi-site roll-ups); a Paris office or French deal experience is preferred
    
- Able to build a financial model from source documents, without a template
    
- **English-speaking**
    

### Logistics

- **Effort:** ~20–25 hours over 1.5–2 weeks

Private Equity Associate – Consumer & Leisure (France/Europe)

Mercor is hiring experienced **private equity associates** to build a financial model from a synthetic deal document pack, then peer-review models built by two other contractors on the same transaction.

### What you'll do

- Build a working financial model of an assigned **real estate** transaction from a synthetic deal document pack
    
- Deliver an editable Excel workbook with live formulas, source references, and stated assumptions
    
- Peer-review two anonymized models from other contractors against a fixed set of criteria, with a short written rationale for each and a completed review scorecard
    

### Requirements

- **2–4 years total experience**: ~2 years investment banking (Real Estate or Industrials) followed by 1–2 years in private equity
    
- Currently or recently an **Associate at a real-estate-focused mid-market or upper-mid-market PE fund**
    
- Able to build a financial model from source documents, without a template
    
- Fluent **English**
    

### Logistics

- **Effort:** ~20–25 hours over 1.5–2 weeks

Private Equity Associate – Real Estate (US)

**Join a leading AI lab's cutting-edge GenAI team to be at the core of the AI revolution, where your expertise fuels the development of the most advanced AI models.**

## 1\. Overview

We are hiring experienced **mechanical engineers** to work directly with a leading AI lab's research and program management teams, improving how frontier AI models reason about real mechanical engineering work.

Your engineering judgment is the substance of this role. You will review the quality of mechanical engineering tasks and model outputs, write the instruction specs and reference solutions that define what "correct" looks like, and help build the evaluations that show whether the model is genuinely improving. We are looking for practicing engineers who have owned real designs, analyses, or systems in industry, not generalists.

This is a W-2 employment position with Cincinnatus LLC, with the opportunity to be placed at a leading AI lab as part of their extended workforce. The initial engagement is 2 to 3 months, with a strong possibility of extension based on performance and project needs. You will be provisioned with client-issued accounts and equipment, and will work inside the client's own tools alongside their research teams.

**Location:** Remote, within the United States.

## 2\. Key Responsibilities

- **Data QA and reviews:** Vet the quality of mechanical engineering tasks and model outputs, spotting incorrect assumptions, missing constraints, unit and tolerance errors, unsafe design choices, and answers that read well but would not pass a design review.
    
- **Instruction specs and reference solutions:** Write clear instruction specs, produce worked reference solutions to mechanical engineering problems, and define new tasks that reflect how engineering work is actually done in practice.
    
- **Benchmarks and domain depth:** Design challenging tasks and evaluation sets across areas such as mechanical design, thermal and fluid systems, structural and stress analysis, manufacturing, and controls, and help build domain-specific tools together with the research team.
    
- **Calibration:** Work with client researchers and specialists in adjacent fields to keep standards consistent, translating tacit engineering judgment into explicit, teachable criteria.
    

## 3\. Core Qualifications

- **Education:** Bachelor's degree or higher in Mechanical Engineering or a closely related engineering discipline.
    
- **Experience:** 5+ years of hands-on professional mechanical engineering experience in industry, for example product design and development, thermal and fluid systems, HVAC, structural or stress analysis, manufacturing engineering, automotive, aerospace, energy, robotics, or medical devices.
    
- **Domain depth:** Genuine ownership of real engineering work, for example designing components or systems, running FEA or CFD analyses, releasing drawings and specifications, or taking products through design reviews, testing, and production.
    
- **Tools and standards:** Working fluency with common engineering tools (for example SolidWorks, CATIA, NX, Creo, AutoCAD, ANSYS, Abaqus, or MATLAB) and familiarity with relevant codes and standards (for example ASME, ASTM, ISO, and GD&T per ASME Y14.5).
    
- **Seniority:** Clear progression toward senior or lead engineering responsibility. A Professional Engineer (PE) license is a plus but not required.
    
- **AI fluency:** Hands-on working use of large language models in your professional work, and the judgment to tell a well-reasoned answer from a plausible-sounding wrong one.
    
- **Availability:** Able to commit reliably to 40 hours per week for an initial engagement of 2 to 3 months, with a strong possibility of extension.
    
- Excellent written communication, and the ability to give precise, well-structured written feedback.
    

## About Cincinnatus LLC

Cincinnatus LLC is an enterprise staffing company that partners with leading technology companies to source and employ highly skilled professionals for contingent and contract-based opportunities. Cincinnatus serves as the employer of record for these engagements, providing W-2 employment, payroll, benefits, and compliance, while placing employees directly within client teams to work on high-impact initiatives.

Roles hired through Cincinnatus are not project-based or freelance engagements. They are structured, role-based positions that typically involve part-time or full-time commitments, close collaboration with a client's internal teams, and integration into standard enterprise workflows.

Cincinnatus is a legal entity separate from Mercor. While opportunities may be discovered through Mercor's platform, employment, onboarding, payroll, and benefits for these roles are administered by Cincinnatus LLC.

## Equal Employment Opportunity

Cincinnatus is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or any other legally protected characteristic.

Cincinnatus is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans throughout the job application process.

Mechanical Engineer

**What this is**
We're building a de-identified, real-world health dataset from Apple Health exports. Each contribution joins your on-device HealthKit data (activity, heart, sleep, and more) with clinical records (immunizations, labs, medications, vitals) from your linked health provider.

**Who qualifies**
We are exclusively looking for individuals who have visited at least one of the institutions listed below **and** have that institution's health records actively connected to Apple HealthKit. If your provider is not on this list, you do not qualify.

**Qualifying institutions:**

- Emory Healthcare
    
- Scripps Health
    
- Northwestern Medicine
    
- Cedars-Sinai Health System
    
- Penn Medicine
    
- NYU Langone Health
    
- Geisinger Health System
    
- Dartmouth Health
    
- Johns Hopkins Medicine
    
- UCSF Health
    
- Cleveland Clinic
    
- Jefferson Health
    
- VCU Health
    
- University of Chicago Medicine
    
- Doctors Center Hospital Orlando Health
    
- Mass General Brigham
    
- Norton Healthcare
    
- Mount Sinai Health System
    
- Henry Ford Health System
    
- Yale New Haven Health
    
- Intermountain Healthcare
    
- Tampa General Hospital
    
- The University of Kansas Health System
    
- University of Utah Health
    
- Michigan Medicine
    
- UC Irvine Health
    
- Nebraska Medicine
    
- Vanderbilt University Medical Center
    
- UC San Diego Health
    
- Musculoskeletal Institute Of LA
    
- UVA Health System
    
- University of Iowa Health Care
    
- Memorial Hermann Health System
    
- Mount Sinai Medical Center
    
- Sentara Healthcare
    
- Froedtert & the Medical College of Wisconsin
    
- Stanford Medicine Obstetrics & Reproductive Endocrinology
    
- Inova Health System
    
- Ochsner Health
    
- UC Davis Health
    
- Scripps Ranch Medical Clinic
    
- The Ohio State University Wexner Medical Center
    
- Buffalo Neuromusculoskeletal Medicine PLLC
    
- The George Washington University Medical Faculty Associates
    
- Houston Methodist
    
- Stanford Health Care
    
- Baylor Scott & White Health
    
- UnityPoint Health
    
- Sutter Health
    
- Aurora Health Care
    
- RWJBarnabas Health
    
- Trinity Health IHA Medical Group
    
- Valley Health System
    
- CHI St. Joseph Health
    
- M Health Fairview
    
- Hattiesburg Clinic
    
- The Christ Hospital Health Network
    
- Bon Secours Health System
    
- Kaiser Permanente
    
- Methodist Le Bonheur Healthcare
    

**What you'll do**

1. **Fully populate your HealthKit profile**: add data across every category that applies to you. Steps-only profiles won't qualify.
    
2. **Link your health record (EHR)** from at least one of the qualifying institutions above via Apple's Health Records network. Must include immunizations, lab results, medications, vitals, **and clinical notes**.
    
3. **Consent to share four demographics**: age, gender, approximate region, and activity level.
    

**To qualify, your submission must:**

- Be a genuine export from your own Health app (not synthetic or demo)
    
- Include records from at least one institution on the qualifying list above, connected to Apple HealthKit
    
- Show a complete profile with continuous history, not a single day of data
    
- Include a linked EHR with all four required clinical categories
    
- **Include the Clinical Notes section in your health record — this is a hard requirement. Submissions without clinical notes cannot be accepted or compensated and will be returned.**
    
- Have all four demographic attributes consented — **no consent, no submission**
    

**Your privacy**
Identity and raw health information never reach the dataset. Every export is de-identified (HIPAA Safe-Harbor–style) before analysis: identifiers stripped, dates and locations generalized, notes scrubbed. You get a random ID; the link to your identity is held separately and never travels with the data. Withdraw consent anytime to be removed.

**Commitment**
One export per participant, with an optional re-export later to refresh your data.

Apple Watch Users: Opportunity for You

Get paid to support Wellness Research (US Only)

Fitness Data Contributor

iPhone Users: Earn Money for Sharing Your Fitness Data (US Only)

The research teams behind the best-known AI models come to Mercor for careful human judgment they can't generate on their own. Your standards and attention become the rubric that frontier AI is graded against.

This is a standing listing for generalists who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match generalists in the network to projects like:

- Writing prompts and reference answers on everyday questions that have a right answer, with the context a good response has to account for
    
- Grading model output on general reasoning: whether the answer is correct, whether it follows the instruction actually given, whether it is complete without padding
    
- Flagging where a model is confidently wrong, contradicts itself earlier in the same answer, or answers a question that was not asked
    

Most contracts in this field have paid $40 to $70 an hour, set per project by scope and depth.

**What we're looking for**

- Careful reading and sound judgment, from a professional or academic background in any field
    
- Clear written communication, since most of the work involves explaining your reasoning
    
- Comfort with ambiguous tasks, and willingness to flag unclear instructions
    

**Who this is for**

This pool is for people whose work does not fit neatly into one of our specialist networks, or who work across several of them. If you looked through our other listings and none of them quite described you, this is the one.

No particular credential is required. What matters is that you read carefully and can say precisely why an answer is wrong.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the generalist pool.

When a project needs general reasoning work, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Generalist Expert

The research teams behind the best-known AI models come to Mercor for data judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for analysts and data practitioners who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match data practitioners in the network to projects like:

- Writing an analysis problem from work you actually shipped, with the data, the question, and the constraint, plus the reference answer a model's attempt gets graded against
    
- Grading model-written analysis and pipelines: whether the query answers the question that was asked, whether the join fans out, whether the metric means what the model says it means
    
- Flagging where a model produces a technically valid result that would mislead a decision-maker, given selection effects, leakage, or a metric that does not track the outcome
    

**What we're looking for**

- Professional experience in analytics, data engineering, statistics, or machine learning
    
- Clear written communication, since most of the work involves explaining your reasoning
    
- Comfort with ambiguous tasks, and willingness to flag unclear instructions
    

**What this covers**

This pool spans data analysis, including:

- Business intelligence
    
- Data engineering
    
- Statistics
    
- Machine learning
    

Where you trained matters less than whether you have shipped analyses someone made a decision on.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the data analysis pool.

When a project needs your specialty, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Data Analysis Expert

The research teams behind the best-known AI models come to Mercor for teaching judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for educators who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match educators in the network to projects like:

- Writing a teaching problem from your own classroom or course, with the level, the common misconception, and the constraint, plus the reference answer a model's attempt gets graded against
    
- Grading model-written explanations and lesson material: whether the explanation meets the learner where they are, whether the worked example is correct, whether the assessment measures what it claims to
    
- Flagging where a model's explanation is accurate and would still confuse a student, given prior knowledge, reading level, or the misconception it fails to address
    

**What we're looking for**

- Professional experience teaching, tutoring, or designing instruction
    
- Clear written communication, since most of the work involves explaining your reasoning
    
- Comfort with ambiguous tasks, and willingness to flag unclear instructions
    

**What this covers**

This pool spans education and training, including:

- K-12 teaching
    
- Higher education and academia
    
- Tutoring and test prep
    
- Curriculum and instructional design
    
- ESL and language instruction
    
- Education technology
    

Where you trained matters less than whether you have taught the material and seen where learners get stuck.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the education and training pool.

When a project needs your subject or level, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Education & Training Expert

The research teams behind the best-known AI models come to Mercor for judgment about how office and productivity software is actually used. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for people who work in these tools all day and who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match people in this network to projects like:

- Writing a realistic task from your own work, a document, a model, or a deck, with the starting material and the constraint, plus the reference answer a model's attempt gets graded against
- Grading model-generated documents, spreadsheets, and slides: whether the formula is correct and robust, whether the formatting survives editing, whether the deck actually makes its argument
- Flagging where a model's output opens cleanly and would break in real use, given file conversion, version compatibility, or what happens once someone else edits it

Listings in this field on Mercor have posted at $60 to $70 an hour, set per project by scope and depth.

**What we're looking for**

- Professional experience working at a high level in office and productivity tools
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans office and productivity software, including:

- Documents and word processing
- Spreadsheets and modeling
- Presentations and slides
- PDF and document conversion
- Email and collaboration tools
- Office scripting and add-ins

Depth in one tool matters more than passing familiarity with all of them.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the office and productivity software pool.

When a project needs your tool or specialty, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Office & Productivity Software Expert

The research teams behind the best-known AI models come to Mercor for financial judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for finance professionals who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match finance professionals in the network to projects like:

- Writing a financial problem from work you have done, with the filings, the assumptions, and the constraints, plus the reference answer a model's attempt gets graded against
- Grading model-built financial work: whether the model ties, whether the accounting treatment is right, whether the valuation assumptions survive a sensitivity check
- Flagging where a model's output looks clean on the page and would not pass review, given disclosure requirements, audit standards, or what the numbers actually support

Rates vary by specialty within this field. Listings across it have posted from $60 to $180 an hour, set per project by scope and depth.

**What we're looking for**

- Professional experience in a finance or accounting discipline
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans the finance field, including:

- Accounting and auditing
- Corporate finance; investment banking
- Asset management; wealth management
- Insurance and actuarial science

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the finance pool.

When a project needs your specialty, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Finance Expert

The research teams behind the best-known AI models come to Mercor for humanities judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for humanities scholars who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match scholars in the network to projects like:

- Writing a question from your own field, with the sources, the context, and the interpretive problem, plus the reference answer a model's attempt gets graded against
- Grading model-written interpretation and argument: whether the sources say what the model claims, whether the reasoning holds, whether the historical or cultural context is right
- Flagging where a model produces fluent, confident prose that misreads the text, flattens a live scholarly debate, or invents a citation

Listings in this field on Mercor have posted at $45 to $60 an hour, set per project by scope and depth.

**What we're looking for**

- A graduate degree in a humanities field, or equivalent scholarly or professional experience
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans the humanities, including:

- History; classics
- Philosophy; ethics and logic
- Literature
- Religious studies; cultural studies

Where you trained matters less than whether you can tell a strong reading from a merely plausible one, and say precisely where the weaker one fails.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the humanities pool.

When a project needs your field, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Humanities Expert

The research teams behind the best-known AI models come to Mercor for design and creative judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for designers and creative professionals who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match creative professionals in the network to projects like:

- Writing a brief from work you have delivered, with the audience, the constraints, and the standard the result had to meet, plus the reference answer a model's attempt gets graded against
- Grading model-generated design, writing, and imagery on craft: whether the hierarchy works, whether the type and colour choices are deliberate, whether the prose earns its length
- Flagging where a model's output is technically competent and would not ship, given brand, accessibility, licensing, or what the medium actually allows

Creative listings on Mercor have posted at $60 to $80 an hour, set per project by scope and depth.

**What we're looking for**

- Professional experience in design, writing, or a creative production discipline
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans arts and design, including:

- Graphic and UX/UI design
- Visual arts, including painting and sculpture
- Performing arts, including music and theatre
- Film and media production; photography
- Fashion and textile design
- Writing and editing

A portfolio matters more than a credential here. What we most need is your ability to say why something works.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the arts and design pool.

When a project needs your discipline, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Arts & Design Expert

The research teams behind the best-known AI models come to Mercor for legal judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for legal professionals who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match legal professionals in the network to projects like:

- Writing a legal problem from a matter you worked on, with the facts, the forum, and the governing law, plus the reference answer a model's attempt gets graded against
- Grading model-drafted legal work: whether the provision does what it claims, whether the privilege call is right, whether the citation supports the proposition it is offered for
- Flagging where a model states the law correctly and would still lose, given the forum, the standard of review, or facts that do not carry the argument

Rates vary by role within this field. Listings across it have posted from $60 to $150 an hour, set per project by scope and depth.

**What we're looking for**

- Professional experience in legal practice, compliance, regulatory work, or policy
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans the legal field, including:

- Legal practice; criminal justice and litigation
- Corporate law and M&A; intellectual property
- Compliance and risk management; regulatory affairs
- Policy
- Paralegals and legal assistants

This pool is broader than practising attorneys. Paralegals, compliance specialists, and policy professionals belong here too.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the legal pool.

When a project needs your area of practice, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Legal Expert

The research teams behind the best-known AI models come to Mercor for engineering judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for engineers who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match engineers in the network to projects like:

- Writing a design problem from work you have done, with the loads, the constraints, and the tolerances, plus the reference answer a model's attempt gets graded against
- Grading model-written analysis: whether the governing failure mode is the one considered, whether the assumptions hold in the regime claimed, whether the safety factor is applied to the right quantity
- Flagging where a model's design satisfies the calculation and fails in practice, given manufacturability, installation, corrosion, or what the standard actually requires

Engineering projects on Mercor have posted at $60 to $125 an hour, set per project by scope and depth.

**What we're looking for**

- A degree in an engineering discipline, with professional design or analysis experience
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans the engineering disciplines, including:

- Structural and civil engineering; environmental engineering
- Mechanical, aerospace, and industrial engineering; robotics
- Electrical engineering
- Chemical engineering; materials engineering

Where you trained matters less than whether you have had a design of yours built, and learned what it did once it was.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the engineering pool.

When a project needs your discipline, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Engineering Expert

The research teams behind the best-known AI models come to Mercor for software engineering judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for engineers who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match engineers in the network to projects like:

- Writing an engineering problem from a system you have shipped, with the requirements, the constraints, and the failure modes, plus the reference answer a model's attempt gets graded against
- Grading model-written code and design: whether it handles the edge cases, whether the complexity is justified, whether the test actually exercises the behaviour it claims to
- Flagging where a model's code passes review and would fail in production, given concurrency, scale, error handling, or what it costs to operate

Software engineering listings on Mercor have posted at $70 to $150 an hour, set per project by scope and depth.

**What we're looking for**

- Professional experience building and shipping software
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans software engineering, including:

- Frontend (React, TypeScript, Next.js); backend (Java, Go, Node.js); full-stack
- Mobile (Android, iOS); embedded and IoT
- DevOps and platform engineering; systems and performance engineering
- QA and automation; security engineering

Where you trained matters less than whether you have owned code in production and dealt with what it did there.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the software engineering pool.

When a project needs your stack or specialty, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Software Engineering Expert

The research teams behind the best-known AI models come to Mercor for consumer and lifestyle judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for specialists in consumer categories who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match specialists in the network to projects like:

- Writing a realistic consumer question from your own area, with the context and constraints a good answer has to respect, plus the reference answer a model's attempt gets graded against
- Grading model recommendations on whether they are current, practical, and safe: whether the product actually exists, whether the advice suits the budget and the setting, whether the cultural detail is right
- Flagging where a model's answer sounds confident and would embarrass someone who acted on it, given price, availability, seasonality, or local norms

Listings in this field on Mercor have posted at $50 to $75 an hour, set per project by scope and depth.

**What we're looking for**

- Professional or deep practical experience in a consumer category
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans consumer and lifestyle categories, including:

- Sports and athletics; fitness and wellness
- Film, TV and pop culture; gaming and esports
- Food and drink; travel and geography
- Fashion and personal style; shopping and retail
- Consumer electronics and smart home; home and family life

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the consumer and lifestyle pool.

When a project needs your category, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Consumer & Lifestyle Expert

The research teams behind the best-known AI models come to Mercor for medical judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for clinicians and health professionals who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match health professionals in the network to projects like:

- Writing a case from your own practice, with the presentation, the workup, and the constraints, plus the reference answer a model's attempt gets graded against
    
- Grading model output on clinical reasoning: whether the differential is ordered sensibly, whether the guideline actually applies to this patient, whether the plan is safe to carry out
    
- Flagging where a recommendation is defensible in a textbook and wrong in front of the patient, given comorbidities, access, or what the care setting can deliver
    

Rates vary widely by profession within this field. Listings across it have posted from $60 to $180 an hour, set per project by scope and depth.

**What we're looking for**

- A clinical credential and professional experience in a health profession
    
- Clear written communication, since most of the work involves explaining your reasoning
    
- Comfort with ambiguous tasks, and willingness to flag unclear instructions
    

**What this covers**

This pool spans the medical field, including:

- Internal medicine, surgical specialties, and diagnostic medicine
    
- Mental health, including psychiatry and clinical psychology
    
- Nursing; dentistry; pharmacy
    
- Medical technology and laboratory science
    
- Public health and epidemiology
    
- Healthcare administration; medical writing
    

This pool is broader than physicians. If you carry clinical judgment in any health profession, it belongs here.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your credentials and background and add you to the medicine pool.

When a project needs your profession or specialty, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Medical Expert

The research teams behind the best-known AI models come to Mercor for scientific judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for researchers who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match researchers in the network to projects like:

- Writing a research problem from your own field, with the system, the data, and the assumptions, plus the reference answer a model's attempt gets graded against
    
- Grading model-written analysis and interpretation: whether the method suits the question, whether the statistics support the claim, whether the conclusion follows from the evidence
    
- Flagging where a model produces a result that is internally consistent and would not survive peer review, given the design, the sample, or what the measurement can actually show
    

Projects across these fields have posted at $60 to $120 an hour, set per project by scope and depth.

**What we're looking for**

- A graduate degree in a life, physical, or social science, with research experience
    
- Clear written communication, since most of the work involves explaining your reasoning
    
- Comfort with ambiguous tasks, and willingness to flag unclear instructions
    

**What this covers**

This pool spans the sciences, including:

- Biology, biotechnology, chemistry, and materials science
    
- Physics and astronomy; mathematics
    
- Earth and environmental science; agriculture
    
- Psychology; sociology and anthropology
    
- Economics; political science and policy research
    

Where you trained matters less than whether you designed the studies and interpreted the data yourself, recently enough to explain the calls you made.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the science pool.

When a project needs your field, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Life, Physical & Social Science Expert

The research teams behind the best-known AI models come to Mercor for business operations judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for operators who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match operators in the network to projects like:

- Writing an operating problem from work you have run, with the process, the constraint, and the numbers, plus the reference answer a model's attempt gets graded against
- Grading model-written operational analysis: whether the process change would survive contact with the people who run it, whether the forecast is grounded, whether the metric actually tracks the outcome
- Flagging where a model's recommendation is defensible on a slide and would stall in practice, given headcount, systems, vendor terms, or who has to approve it

Comparable business operations projects have posted at $90 to $120 an hour, set per project by scope and depth.

**What we're looking for**

- Professional experience running or analyzing a business function
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans the business operations field, including:

- Sales and business development; customer success and account management
- Strategy, process improvement, and operations analysis
- Supply chain and logistics; procurement
- Project and people management; human resources and administration
- Marketing; survey and market research; customer support operations

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the business operations pool.

When a project needs your function, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Business Operations Expert

The research teams behind the best-known AI models come to Mercor for language and audio judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for linguists, translators, and audio professionals who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match people in this network to projects like:

- Writing prompts and reference answers in your language, with the register, idiom, and cultural context a model has to get right for the answer to read as native
- Grading model output in your language: whether a translation preserves meaning and tone, whether the grammar is idiomatic rather than merely correct, whether the register suits the speaker and the setting
- Judging voice, music, and sound work on whether it is clean, natural, and usable, and saying precisely what is wrong when it is not

Listings in this field on Mercor have posted at $35 to $50 an hour, set per project by scope, language, and depth.

**What we're looking for**

- Native or professional fluency in at least one language, or professional experience in translation, voice, music, or audio production
- Clear written communication, since most of the work involves explaining your reasoning
- Comfort with ambiguous tasks, and willingness to flag unclear instructions

**What this covers**

This pool spans the language and audio field, including:

- Languages: Spanish, Arabic, English, Hindi, French, Portuguese, Italian, Chinese, Russian, Japanese, Korean, Polish, Tamil, Telugu, Kannada, Malayalam, Marathi, Assamese, Punjabi, Gujarati, Thai, Dutch, and Finnish
- Translation and interpretation
- Voice acting
- Music, audio engineering, and sound design

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the language and audio pool.

When a project needs your language or your specialty, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Language & Audio Expert

The research teams behind the best-known AI models come to Mercor for electrical engineering judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for electrical engineers who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match electrical engineers in the network to projects like:

- Writing a circuit or systems problem from work you have done, with the specification, the constraints, and the operating conditions, plus the reference answer a model's attempt gets graded against
    
- Grading model-written design and analysis: whether the topology suits the requirement, whether the noise and stability margins hold, whether the timing closes
    
- Flagging where a model's design simulates cleanly and fails on a real board, given parasitics, tolerance stack-up, or interference
    

Past rates have run $70 to $120 an hour, set per project by scope and depth.

**What we're looking for**

- A degree in electrical engineering, with professional design, test, or systems experience
    
- Clear written communication, since most of the work involves explaining your reasoning
    
- Comfort with ambiguous tasks, and willingness to flag unclear instructions
    

Where you trained matters less than whether you have debugged your own design on the bench and found out what the simulation missed.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the electrical engineering pool.

When a project needs electrical engineering expertise, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Electrical Engineering Expert

The research teams behind the best-known AI models come to Mercor for mechanical engineering judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for mechanical engineers who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match mechanical engineers in the network to projects like:

- Writing a design problem from work you have done, with the loads, the constraints, and the tolerances, plus the reference answer a model's attempt gets graded against
    
- Grading model-written analysis: whether the free body diagram is right, whether the failure mode considered is the governing one, whether the safety factor is applied to the right quantity
    
- Flagging where a model's design satisfies the calculation and fails in practice, given manufacturability, assembly, wear, or thermal expansion
    

Past rates have run $70 to $125 an hour, set per project by scope and depth.

**What we're looking for**

- A degree in mechanical engineering, with professional design or analysis experience
    
- Clear written communication, since most of the work involves explaining your reasoning
    
- Comfort with ambiguous tasks, and willingness to flag unclear instructions
    

Where you trained matters less than whether you have had a design of yours built, and learned what it did once it was.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the mechanical engineering pool.

When a project needs mechanical engineering expertise, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Mechanical Engineering Expert

The research teams behind the best-known AI models come to Mercor for mathematical judgment they can't generate on their own. Your standards and expertise become the rubric that frontier AI is graded against.

This is a standing listing for mathematicians who want AI training and evaluation work, not a specific job opening. It stays open whether or not a matching project is running this week.

New projects start on short notice, so instead of posting and pulling a listing each time, we keep one open per field and draw from it when one begins.

**What the work looks like**

We match mathematicians in the network to projects like:

- Writing a problem at research or competition level, with the statement and the intended solution, plus the reference answer a model's attempt gets graded against
    
- Grading model-written proofs: whether each step follows, whether the edge cases are handled, whether an appeal to a known theorem actually satisfies its hypotheses
    
- Flagging where a model reaches a correct answer through an argument that does not prove it
    

Most contracts in this field have paid $40 to $75 an hour, set per project by scope and depth.

**What we're looking for**

- A graduate degree in mathematics or a related field, or an equivalent research or competition background
    
- Clear written communication, since most of the work involves explaining your reasoning
    
- Comfort with ambiguous tasks, and willingness to flag unclear instructions
    

Where you trained matters less than whether you can tell a proof from a convincing sketch, and say precisely where the gap is.

**How it works**

Apply here with your resume and confirm where you work from, then take a short AI interview, about 20 minutes total.

We verify your background and add you to the mathematics pool.

When a project needs mathematics expertise, we invite matching people from the pool to that specific listing. It names the rate, the hours, and the client, and any hiring decision is made there.

**What to expect**

This listing does not accept or reject candidates, so you will not get a decision on it. We reach out when a project matches your background. Depending on what our clients are running, that can be within a week or several months.

Finishing the domain expert interview and joining every network you qualify for both improve your odds of being matched. You only need to sign up once to be eligible across all of them.

Mathematics Expert

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