**Role Overview**
We're recruiting native Colombian Spanish speakers for immediate customer experience (CX) agent testing. You'll interact with our client's conversational AI agent, assess how it performs, and provide clear written feedback.

**What You'll Do**

- Test the CX agent's responses and behaviour across the prompts and scenarios provided
    
- QA each conversation for accuracy, tone, clarity, and naturalness in Colombian Spanish
    
- Provide clear written feedback on conversation flow and user experience
    
- No domain expertise required—a generalist perspective is exactly what we need
    

**Schedule & Compensation**

- **Duration:** 2 weeks
    
- **Daily Commitment:** 1-2 hours per day
    
- **Start Date:** Immediate
    

**Requirements**

- Native or fluent Colombian Spanish speaker
    
- Ability to make clear phone calls with good audio quality
    
- Available to start immediately

Colombian Spanish expert

**About the role**

We're looking for senior concierges, lifestyle managers and luxury travel advisors who recommend places to high-net-worth clients for a living. You'll bring the judgment a seasoned concierge uses every day to help shape the next generation of travel and hospitality recommendations.

**What you'll do**

- Apply your firsthand knowledge of restaurants, hotels and experiences in the cities you know best
- Use your professional judgment on what makes a recommendation right for a discerning client
- Share the insider perspective that only comes from years of curating experiences for demanding guests

**Who we're looking for**

- Experience as a hotel concierge, lifestyle manager, private concierge or luxury travel advisor
- Strong, current knowledge of the restaurants, hotels and experiences in the cities you know best
- Based in the US

**Details**

- Remote, flexible hours, paid hourly
- Short, well-defined tasks with clear guidelines

Lifestyle & Travel Concierge Expert

Mercor is recruiting **US-based loan underwriters and loan officers** for an **academic research study** run by researchers at **Stanford University**.

This is a **survey study, not data labeling or annotation**: you'll share your professional judgment and experience through online surveys.

### Who can take part

- You are **based in the United States**
    
- You work (or have recently worked) as a **loan underwriter or loan officer**
    
- You have **at least 3–4 years of experience in lending** — more experience is a plus
    

### What you'll be asked to do

- Complete **1–2 online surveys**, each about **one hour** long
    
- Answer questions drawing on your professional experience with loans
    

### Engagement details

- **Format:** Online surveys
    
- **Time commitment:** About 1 hour per survey (1–2 surveys in total)
    
- **Compensation:** $70 per completed survey, paid once on completion
    
- **Start:** A small pilot group goes first, followed by a larger study
    

### Why participate

- Contribute to Stanford research using your lending expertise
    
- Short and fully remote

Loan Underwriter / Loan Officer — Paid Research Survey (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 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 open-source maintainers and core contributors with deep, hands-on ownership of a mature, widely used open-source codebase to bring real-world engineering and code review judgment and elevate the quality of our AI training data. The role requires 30–40 hours per week, with flexible scheduling. Most work is asynchronous and can be done in the evenings or on weekends, with occasional meetings with the lab's researchers as needed.

You'll be engaged through Cincinnatus LLC, with the opportunity to be placed at a leading AI lab as part of their extended workforce.

# 2\. Key Responsibilities

- Guide research and engineering teams to close knowledge gaps and improve AI model performance in software engineering, code review, and open-source maintenance topics.
    
- Design challenging, realistic engineering tasks grounded in the open-source codebase the expert knows best, such as the features, refactors and bug fixes a maintainer would assign, and write accurate, well-structured reference solutions.
    
- Evaluate AI-written code, tests and grading rubrics against the repository's architecture, conventions and quality bar, and provide clear, written technical feedback.
    
- Build, run and test the project locally, including with Docker, to confirm that tasks, solutions and tests behave as intended.
    
- Write precise rationales that explain what a strong solution looks like and where AI-generated changes fall short.
    
- Collaborate with other subject matter experts to ensure consistency and accuracy in training data.
    

# 3\. Core Qualifications

- Maintainer (named in MAINTAINERS or CODEOWNERS, or 10+ PR reviews in the last 12 months) or core contributor (3+ substantive merged PRs in the last 12 months) of a widely used open-source project.
    
- The repository is 2+ years old, has real users and an active code review culture, and is primarily human-written.
    
- Years of sustained open-source contributions, with a public history that can be verified against the candidate's own GitHub account.
    
- Senior-level code review judgment, including the ability to critically assess AI-written code, tests and edge cases.
    
- Hands-on ability to build and run the project and its test suite locally, including with Docker.
    
- Ability to commit 30–40 hours/week as your primary work focus, with availability for occasional meetings with the lab's researchers. Given that time commitment, this role isn't a fit alongside a full-time job.
    
- Exclusivity: no work with another AI lab or AI training company, including other Mercor projects, during the engagement.
    
- Authorized to work in the country you live in.
    
- Able to complete any necessary background checks and confidentiality agreements before starting, and to work on a company-provided device to protect the security of information.
    
- Writes all rationales and feedback personally, in their own words.
    
- 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 employment, payroll, benefits, and compliance, while placing professionals 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.

Open Source Maintainer / Core Contributor – Software Engineer

Mercor is partnering with a leading AI research lab to engage experienced **Market Research, Consumer Insights, and Marketing Strategy professionals** to act as **end-users of a cutting-edge AI product**. In this role, you will interact with the product as if you were using it in your day-to-day work—evaluating outputs, providing feedback, and helping improve how the system supports real-world decision-making.

* * *

### **What You’ll Do**

- Use an AI-powered product designed for:
    
    - Market research synthesis
        
    - Consumer insights generation
        
    - Marketing strategy recommendations
        
- Evaluate outputs from an **end-user perspective**, focusing on:
    
    - Relevance and usefulness of insights
        
    - Strategic quality and business applicability
        
    - Clarity, structure, and actionability
        
- Provide structured feedback and annotations on:
    
    - What works well vs. what doesn’t
        
    - Gaps, inaccuracies, or missing context
        
    - How outputs could be improved for real-world use
        
- Simulate real workflows (e.g., reviewing reports, validating insights, making decisions based on outputs)
    

* * *

### **Who We’re Looking For**

We are seeking professionals who regularly **consume, interpret, and act on market research and insights**, such as:

- Market Research Analysts / Managers / Directors
    
- Consumer Insights Managers / Leads
    
- Marketing Strategy / Brand Managers
    
- Product Marketing / Growth professionals with strong research exposure
    

**Requirements:**

- 3+ years of experience in market research, insights, or marketing strategy
    
- Current or recent experience at a **Fortune 1000 company, top consulting firm, or leading agency**
    
- Hands-on experience using insights to drive decisions (not just producing reports)
    
- Familiarity with:
    
    - Consumer research, segmentation, or survey analysis
        
    - Market sizing, competitive intelligence, or trend analysis
        
    - Translating insights into business or marketing strategy
        
- Strong critical thinking and ability to give clear, actionable feedback
    
- Fluent in English
    

* * *

### **Why Join**

- Influence how next-generation AI products are designed for real business users
    
- Act as a **true end-user voice** in shaping product quality and usability
    
- Flexible, low-commitment opportunity alongside your current role
    
- Opportunity for future product testing and feedback engagements

Market Research & Insights Experts

**About the Role**
Mercor is partnering with a leading AI lab to train frontier models on high-quality legal reasoning data. We're hiring US patent attorneys with prosecution and/or litigation experience for a focused evaluation project. You'll review model-generated work product on patent matters, judge its quality, and mark legal, technical, factual and citation errors directly in the materials.

**What You'll Do**

- Review patent-related outputs (prosecution and/or litigation work product) and assess their quality against defined dimensions

- Annotate inline, flagging legal, technical, factual, claim-construction and citation errors

- Provide clear, well-reasoned explanations for each judgment

- Complete all assigned reviews within the review window

- Attend a short onboarding session before kickoff

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

- Are admitted to practice in at least one US state (active bar membership)

- Have 3+ years of US patent practice — patent **prosecution** (drafting/prosecuting applications before the USPTO) and/or patent **litigation** (infringement, validity, claim construction)

- For prosecution work: are **registered to practice before the USPTO** (patent bar, registration number)

- Hold a technical or scientific degree (engineering, computer science, life sciences, chemistry, physics or similar)

- Hold a J.D. from an ABA-accredited law school

- Write clearly and pay close attention to detail

**Bonus Qualifications**

- USPTO registration number (patent bar)

- Experience at an AmLaw 100 firm or a leading patent boutique

- Federal Circuit or district-court patent clerkship

- Prior data annotation, AI evaluation or legal-benchmark experience, including prior legal AI projects with Mercor

**Role Highlights**

- Time commitment: approximately 12–15 hours total, within a defined review window

- Immediately required

- You must complete all required reviews, as the project design depends on every attorney finishing the full set

US Patent Attorney — Prosecution & Litigation

## About the project
Help evaluate AI assistants on realistic everyday tasks. You give an AI assistant a task like one from your own life or work, work with it over several turns, and rate the result against a professional standard.

## What you will do
- Write short, realistic requests, like a real user would type.
- Work with the assistant on the task: steer it, answer its questions, and push back when it is wrong.
- Rate the experience and the deliverable, and write short notes on what went well or badly.

## Who we are looking for
- You use AI chat assistants often for everyday personal and work questions, and you write clearly.
- No minimum years of experience.
- You use AI assistants at least occasionally.
- You write clearly in English.

## Details
- Remote, about 10 hours per week, flexible schedule.
- Pay: $30/hour.
- Only open to candidates in countries where the assistant is available.

AI Chat Generalist

## About the project
Help evaluate AI assistants on realistic education and training tasks. You give an AI assistant a task like one from your own work, work with it over several turns, and rate the result against a professional standard.

## What you will do
- Write short, realistic requests, like a real user would type.
- Work with the assistant on the task: steer it, answer its questions, and push back when it is wrong.
- Rate the experience and the deliverable, and write short notes on what went well or badly.

## Who we are looking for
- You are a teacher, professor, tutor, instructional designer, curriculum developer or L&D professional.
- 3+ years of professional experience in teaching, instructional design or corporate training.
- You use AI assistants at least occasionally.
- You write clearly in English.

## Details
- Remote, about 10 hours per week, flexible schedule.
- Pay: $30/hour.
- Only open to candidates in countries where the assistant is available.

Education & Training Professional

## About the project
Help evaluate AI assistants on realistic marketing, content and design tasks. You give an AI assistant a task like one from your own work, work with it over several turns, and rate the result against a professional standard.

## What you will do
- Write short, realistic requests, like a real user would type.
- Work with the assistant on the task: steer it, answer its questions, and push back when it is wrong.
- Rate the experience and the deliverable, and write short notes on what went well or badly.

## Who we are looking for
- You work in digital or social marketing, content production, copywriting, brand, or visual / UX design.
- 3+ years of professional experience in marketing, content production or design. A portfolio is a plus.
- You use AI assistants at least occasionally.
- You write clearly in English.

## Details
- Remote, about 10 hours per week, flexible schedule.
- Pay: $36/hour.
- Only open to candidates in countries where the assistant is available.

Marketing, Creative & Design Professional

## About the project
Help evaluate AI assistants on realistic finance and accounting tasks. You give an AI assistant a task like one from your own work, work with it over several turns, and rate the result against a professional standard.

## What you will do
- Write short, realistic requests, like a real user would type.
- Work with the assistant on the task: steer it, answer its questions, and push back when it is wrong.
- Rate the experience and the deliverable, and write short notes on what went well or badly.

## Who we are looking for
- You are an accountant, FP&A analyst, controller, auditor, tax professional or finance manager, and you work in spreadsheets every day.
- 3+ years of professional experience in corporate finance, accounting, FP&A, audit or tax.
- You use AI assistants at least occasionally.
- You write clearly in English.

## Details
- Remote, about 10 hours per week, flexible schedule.
- Pay: $42/hour.
- Only open to candidates in countries where the assistant is available.

Corporate Finance & Accounting Professional

## About the project
Help evaluate AI assistants on realistic legal and compliance tasks. You give an AI assistant a task like one from your own work, work with it over several turns, and rate the result against a professional standard.

## What you will do
- Write short, realistic requests, like a real user would type.
- Work with the assistant on the task: steer it, answer its questions, and push back when it is wrong.
- Rate the experience and the deliverable, and write short notes on what went well or badly.

## Who we are looking for
- You are an attorney, paralegal, legal operations specialist or compliance professional.
- 3+ years of professional experience in legal practice, paralegal work or regulatory compliance.
- You use AI assistants at least occasionally.
- You write clearly in English.

## Details
- Remote, about 10 hours per week, flexible schedule.
- Pay: $57/hour.
- Only open to candidates in countries where the assistant is available.

Legal & Compliance Professional

**Help define how frontier AI models reason about mathematics.**

## 1\. Overview

We are looking for senior mathematicians to improve how frontier AI models reason about real mathematical research.

Your mathematical judgment is the substance of this role. You will review the quality of mathematical reasoning tasks and model outputs, write the problem specifications and reference solutions and proofs that define what "correct" looks like, and design benchmarks that show whether a model is genuinely improving. We are looking for a practicing specialist rather than a generalist.

This role is fully remote.

## 2\. Key Responsibilities

- **Expert review:** Assess mathematical tasks and model outputs, catching gaps in proofs, unjustified steps, incorrect generalizations, and arguments that read well but would not survive peer review.
- **Problem specs and reference solutions:** Write precise problem statements and rigorous reference solutions and proofs that reflect how research mathematics is actually done.
- **Benchmarks:** Design challenging, research-level problems and evaluation sets in your area of specialization.
- **Calibration:** Work with other researchers and experts in adjacent fields to turn tacit expert judgment into explicit, teachable criteria.

## 3\. Core Qualifications

- **Education:** PhD in mathematics, applied mathematics, statistics, operations research, or a closely related field.
- **Seniority:** A faculty appointment, principal investigator, staff or senior scientist, or an equivalent senior research role at a university, national laboratory, or research organization.
- **Domain depth:** Genuine specialization in at least one area, for example analysis and PDE, algebra and number theory, geometry and topology, probability and statistics, or applied mathematics and optimization.
- **Research record:** A strong peer-reviewed publication record. Recognition such as competitive fellowships or awards is a plus.
- **AI fluency:** Hands-on use of large language models in your work, and the judgment to tell a sound argument from a plausible-sounding wrong one.
- **Communication:** Excellent written communication and the ability to give precise, well-structured feedback.
- **Location:** Based in the United States.

Mathematics Domain Expert

**Help define how frontier AI models reason about biology and the life sciences.**

## 1\. Overview

We are looking for senior biologists and life scientists to improve how frontier AI models reason about real life sciences research.

Your scientific judgment is the substance of this role. You will review the quality of life sciences reasoning tasks and model outputs, write the problem specifications and reference solutions that define what "correct" looks like, and design benchmarks that show whether a model is genuinely improving. We are looking for a practicing specialist rather than a generalist.

This role is fully remote.

## 2\. Key Responsibilities

- **Expert review:** Assess life sciences tasks and model outputs, catching mechanistic hand-waving, unsupported causal claims, flawed experimental design, and answers that read well but would not survive peer review.
- **Problem specs and reference solutions:** Write precise problem statements and rigorous reference solutions that reflect how life sciences research is actually done.
- **Benchmarks:** Design challenging, research-level problems and evaluation sets in your area of specialization.
- **Calibration:** Work with other researchers and experts in adjacent fields to turn tacit expert judgment into explicit, teachable criteria.

## 3\. Core Qualifications

- **Education:** PhD in biochemistry, molecular or cell biology, genetics, immunology, neuroscience, or a closely related life science.
- **Seniority:** A faculty appointment, principal investigator, staff or senior scientist, or an equivalent senior research role at a university, academic medical center, national laboratory, or research organization.
- **Domain depth:** Genuine specialization in at least one area, for example molecular and cell biology, biochemistry and structural biology, immunology, genetics and genomics, neuroscience, or ecology and evolution.
- **Research record:** A strong peer-reviewed publication record. Recognition such as competitive fellowships or awards is a plus.
- **AI fluency:** Hands-on use of large language models in your work, and the judgment to tell a sound argument from a plausible-sounding wrong one.
- **Communication:** Excellent written communication and the ability to give precise, well-structured feedback.
- **Location:** Based in the United States.

Biology & Life Sciences Domain Expert

**Help define how frontier AI models reason about chemistry.**

## 1\. Overview

We are looking for senior chemists to improve how frontier AI models reason about real chemistry research.

Your scientific judgment is the substance of this role. You will review the quality of chemistry reasoning tasks and model outputs, write the problem specifications and reference solutions that define what "correct" looks like, and design benchmarks that show whether a model is genuinely improving. We are looking for a practicing specialist rather than a generalist.

This role is fully remote.

## 2\. Key Responsibilities

- **Expert review:** Assess chemistry tasks and model outputs, catching implausible mechanisms, infeasible reactions, stoichiometric and thermodynamic errors, misread spectra, and answers that read well but would not survive peer review.
- **Problem specs and reference solutions:** Write precise problem statements and rigorous reference solutions that reflect how research chemistry is actually done.
- **Benchmarks:** Design challenging, research-level problems and evaluation sets in your area of specialization.
- **Calibration:** Work with other researchers and experts in adjacent fields to turn tacit expert judgment into explicit, teachable criteria.

## 3\. Core Qualifications

- **Education:** PhD in chemistry, chemical engineering, or a closely related field.
- **Seniority:** A faculty appointment, principal investigator, staff or senior scientist, or an equivalent senior research role at a university, national laboratory, or research organization.
- **Domain depth:** Genuine specialization in at least one area, for example organic and synthetic chemistry, physical and computational chemistry, inorganic and materials chemistry, analytical chemistry, or chemical biology.
- **Research record:** A strong peer-reviewed publication record. Recognition such as competitive fellowships or awards is a plus.
- **AI fluency:** Hands-on use of large language models in your work, and the judgment to tell a sound argument from a plausible-sounding wrong one.
- **Communication:** Excellent written communication and the ability to give precise, well-structured feedback.
- **Location:** Based in the United States.

Chemistry Domain Expert

**Help define how frontier AI models reason about physics.**

## 1\. Overview

We are looking for senior physicists to improve how frontier AI models reason about real physics research.

Your scientific judgment is the substance of this role. You will review the quality of physics reasoning tasks and model outputs, write the problem specifications and reference solutions that define what "correct" looks like, and design benchmarks that show whether a model is genuinely improving. We are looking for a practicing specialist rather than a generalist.

This role is fully remote.

## 2\. Key Responsibilities

- **Expert review:** Assess physics tasks and model outputs, catching flawed derivations, unjustified approximations, dimensional and limit errors, and answers that read well but would not survive peer review.
- **Problem specs and reference solutions:** Write precise problem statements and rigorous reference solutions that reflect how research physics is actually done.
- **Benchmarks:** Design challenging, research-level problems and evaluation sets in your area of specialization.
- **Calibration:** Work with other researchers and experts in adjacent fields to turn tacit expert judgment into explicit, teachable criteria.

## 3\. Core Qualifications

- **Education:** PhD in physics, astrophysics, applied physics, or a closely related field.
- **Seniority:** A faculty appointment, principal investigator, staff or senior scientist, or an equivalent senior research role at a university, national laboratory, or research organization.
- **Domain depth:** Genuine specialization in at least one area, for example condensed matter, high-energy or particle physics, astrophysics and cosmology, atomic, molecular, optical and quantum physics, or statistical and computational physics.
- **Research record:** A strong peer-reviewed publication record. Recognition such as competitive fellowships or awards is a plus.
- **AI fluency:** Hands-on use of large language models in your work, and the judgment to tell a sound argument from a plausible-sounding wrong one.
- **Communication:** Excellent written communication and the ability to give precise, well-structured feedback.
- **Location:** Based in the United States.

Physics Domain Expert

Mercor is seeking a **senior business strategy expert with deep experience in the luxury automotive sector** (e.g., Ferrari, Lamborghini, Porsche, Bentley, Rolls-Royce, Aston Martin, McLaren, Maserati) for a short, focused advisory engagement. You will review **strategy materials, market insights, and recommendations** and give a candid, C-suite-level perspective on how executives at leading luxury automakers would react to them.

## Key Responsibilities

- Review strategy materials, including market insights, analyses, and strategic recommendations related to the luxury automotive space.
    
- Assess the materials through the lens of a **C-suite executive at a luxury automaker**: would a CEO, CFO, CMO, or Chief Strategy Officer find this compelling, credible, and actionable?
    
- Identify **logical gaps, red flags, unsupported assumptions, and internal inconsistencies** across the insights and recommendations.
    
- Flag where recommendations conflict with how luxury automotive businesses actually operate, e.g. brand scarcity and exclusivity, production volume discipline, pricing power, personalisation and bespoke programs, dealer and client relationships, residual values, electrification strategy, and brand heritage.
    
- Point out what is missing: considerations a luxury auto leadership team would expect to see addressed.
    
- Deliver clear, structured written feedback (and optionally a short debrief call) summarising key strengths, concerns, and suggested improvements.
    

## Required Qualifications

- **10+ years of experience in business strategy**, with substantial, demonstrable focus on the **luxury automotive** sector.
    
- One or more of the following backgrounds:
    
    - **Partner, Principal, Associate Partner, or senior consultant at a top strategy firm** (McKinsey, BCG, Bain, or comparable) with clear past casework for luxury or premium automotive clients.
        
    - **Senior leadership or strategy role at a luxury automaker** (e.g., corporate strategy, brand, commercial, product planning, or executive office).
        
    - Senior advisor or board-level experience with luxury automotive or adjacent ultra-luxury brands.
        
- Strong understanding of how luxury automotive executives make decisions, including brand positioning, volume and allocation strategy, pricing, customer experience, and long-term brand equity.
    
- Proven ability to critically review strategy documents and give sharp, structured, executive-ready feedback.
    
- Excellent written communication in English.
    

## Preferred Qualifications

- Direct experience working at or advising brands such as **Ferrari, Lamborghini, Porsche, Bentley, Rolls-Royce, Aston Martin, McLaren, or Bugatti**.
    
- Exposure to adjacent luxury categories (fashion, watches, yachts, private aviation) and how luxury brand principles carry across them.
    
- Experience presenting to or working alongside C-suite executives and boards.
    
- Familiarity with current industry dynamics such as electrification, ultra-high-net-worth client trends, regional demand (US, Europe, Middle East, China), and personalisation programs.
    

## Why Join

- Apply your luxury automotive strategy expertise to a focused, high-impact advisory project.
    
- Shape strategic thinking that will be put in front of senior decision-makers.
    
- Flexible, remote, well-scoped engagement that fits around your existing commitments.

Luxury Automotive Strategy Expert

**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 seeking experienced Spanish (Spain) Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Peninsular Spanish-language tasks and on curating high-quality Spanish linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Spanish text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Spanish content to meet linguistic and cultural standards for Spain.
    
- Annotate Spanish text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Spanish (Spain), with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Spanish.
    
- Strong understanding of Peninsular Spanish nuances, regional variations, register, and context-appropriate usage, including how it differs from Latin American Spanish.
    
- Professional fluency in English.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Spanish (Spain) Linguistic Expert

Mercor is hiring practicing orthodontists (DDS and DMD) to help build rigorous evaluations of how well AI reads real dental imaging, in partnership with a leading AI lab.

This is not image labeling. You will read de-identified cephalometric and panoramic radiographs and CBCT studies, write the reference finding, and review AI-drafted reads to mark what is inaccurate, unsupported, or unsafe. Your clinical judgment becomes the reference standard that trains and tests frontier models, work that improves outcomes for millions of patients around the world.

**Key Responsibilities**

- Read de-identified orthodontic imaging (cephalometric and panoramic radiographs, CBCT, intraoral scans) and record the reference finding
- Apply the diagnostic conventions and treatment-planning reasoning you use in practice
- Review AI-generated reads and flag errors that are inaccurate, unsupported, or could compromise patient care
- Write structured rationales on clinical rigor, completeness and clarity

**Required Qualifications**

- **DDS or DMD** from a dental school in the United States
- Completed an accredited orthodontics residency (certificate or MS in orthodontics)
- Active, unrestricted US dental license
- **Currently treating patients** as an orthodontist in the US, with at least 5 years of independent practice after residency
- Resident in the US, outside California
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- Receive next steps and onboarding details within a few days

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

Orthodontist

Mercor is hiring fellowship-trained breast imaging radiologists (MDs and DOs) to help build rigorous evaluations of how well AI reads real imaging studies, in partnership with a leading AI lab.

This is not image labeling. You will read de-identified studies, write the reference finding or report, and review AI-drafted reads to mark what is inaccurate, unsupported, or unsafe. Your clinical judgment becomes the reference standard that trains and tests frontier models, work that improves outcomes for millions of patients around the world.

**Key Responsibilities**

- Read de-identified screening and diagnostic mammography, tomosynthesis, breast ultrasound and breast MRI studies and record the reference finding
- Apply the structured systems and measurement conventions you use in practice (BI-RADS and related standards)
- Review AI-generated reads and flag errors that are inaccurate, unsupported, or could compromise patient safety
- Write structured rationales on clinical rigor, completeness and clarity

**Required Qualifications**

- **MD or DO** from a medical school in the United States
- Board certified in **ABR Diagnostic Radiology** through an ABMS member board or the AOA
- Completed a breast imaging or women's imaging fellowship
- Active, unrestricted US medical license
- **Currently practicing** and reading breast imaging in the US, with at least 5 years of independent practice after training
- Resident in the US, outside California
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- Receive next steps and onboarding details within a few days

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

Breast Imaging Radiologist

## About this opportunity

Mercor is inviting participants to contribute their wellness, fitness, and connected medical records to support research aimed at improving AI-powered healthcare technology.

This is a **fully remote, one-time contribution,** not an ongoing role.

Most people finish in under 30 minutes, all in one sitting.

## What you will do

1. Create a Mercor Profile
    
2. Complete a short **eligibility pre-screen** and sign the consent agreement
    
3. Follow simple instructions to securely export and upload your Apple Health data
    
4. Optionally add your Clinical Notes for additional compensation
    

## Who qualifies

- You are **18 years or older** and living in an eligible U.S. state
    
- You own an iPhone
    
- Willing to share your data for research, subject to your consent
    

Some US states are not eligible for this study. The pre-screen will tell you straight away whether you qualify.

## Your data and your privacy

Your privacy matters to us, and we take steps to protect your personal information.

- **Your identity is protected:** Personal identifiers are de-identified before data is shared with our research client
    
- **Your data is securely stored:** Information is encrypted and accessible only to authorized personnel
    
- **You're in control:** Participation is voluntary, and you can choose not to proceed before submitting
    

Your data is used only for the purposes outlined in your consent agreement.

## Payment

You are paid per **accepted** submission, once your upload has been reviewed. There is no hourly commitment.

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

**Role Overview**
Mercor is working with a leading AI research lab on a project to improve how AI systems do real-world data science and data engineering work. We’re looking for senior data scientists and data engineers who have deep experience at top technology, quantitative or financial firms. You’ll use that expertise to train and evaluate frontier AI models.
This role is open to candidates based in the United States, United Kingdom, Canada, Australia or New Zealand.
**Key Responsibilities**

- Designing realistic, challenging data science and data engineering tasks, including but not limited to exploratory analyses, statistical modeling, machine learning pipelines, ETL and data pipeline design, SQL and Python workflows, and experimentation or A/B test write-ups
    
- Illustrating "what good looks like" by writing precise, task-specific criteria for data science and data engineering deliverables
    
- Applying consistent, evidence-based judgment so that assessments are reproducible and defensible
    
- Taking structured feedback from senior reviewers and iterating on submitted work
    

**Ideal Profile**

- 4+ years of professional data science, data engineering or machine learning experience in one of these settings:
    
    - A leading technology or quantitative firm (such as FAANG+, Magnificent 7+, top-tier quant funds or equivalent) with a Mid-senior level title. Applied Scientist, Research Scientist and Machine Learning Engineer/Scientist roles also qualify.
        
    - A top financial institution (a leading bank, hedge fund or trading firm)
        
    - A top-tier consulting firm, working as a data scientist
        
    - A Fortune 100 company, with a senior or manager-level title
        
    - Experience may be split across more than one qualifying employer
        
- Strong command of Python, SQL, statistical modeling, machine learning, experimentation and causal inference
    
- Proven ability to turn messy real-world data into rigorous analyses and reliable pipelines
    
- Excellent written English, including the ability to explain technical findings clearly
    
- Bachelor's degree from an English-speaking country
    
- A detail-oriented, consistent approach to evaluating complex work
    
- Comfortable receiving feedback and calibrating judgment against set standards

Senior Data Scientist and Data Engineering Experts

Mercor is hiring on behalf of a leading AI research lab developing next-generation clinical AI systems. We're seeking experienced Certified Pharmacy Technicians (CPhT) to support the development of AI-powered prior authorisation workflows by reviewing medication-related clinical content and evaluating AI-generated responses for accuracy, safety, clarity, and completeness. This role is ideal for pharmacy technicians with strong medication management and pharmacy operations experience who are interested in contributing to cutting-edge healthcare AI.

**What You'll Do**

- Answer medication-related clinical questions using patient context, source materials, and labelling guidelines.
    
- Review AI-generated responses for clinical accuracy, safety, clarity, completeness, and evidence support.
    
- Correct inaccurate or incomplete responses and provide structured annotations and written feedback.
    
- Identify and escalate cases involving insufficient evidence, conflicting guidance, unclear clinical context, or patient safety concerns.
    
- Apply project rubrics and quality standards consistently while participating in calibration and feedback sessions.
    

**Representative topics include:**

- Medication history
    
- Prior authorisation requirements
    
- Medication indications
    
- Dosing information
    
- Contraindications
    
- Drug interactions
    
- Supporting clinical documentation
    
- Pharmacy workflows
    

**Qualifications**

- Certified Pharmacy Technician (CPhT) or equivalent pharmacy technician experience.
    
- Hands-on experience with medications, prescriptions, pharmacy operations, and prior authorisation workflows.
    
- Strong understanding of medication safety, drug interactions, and pharmacy best practices.
    
- Excellent written communication skills and strong attention to detail.
    
- Comfortable following structured annotation guidelines.
    
- Available for 30–40 hours per week during the project.
    

**Preferred Experience**

- Prior authorisation or speciality pharmacy
    
- Medication access programs
    
- Epic, Cerner, or other electronic health record (EHR) systems
    
- Clinical quality assurance
    
- AI evaluation, clinical content review, or healthcare data annotation
    
- 340B or medication assistance programs
    

**What Success Looks Like**

- Consistently accurate, evidence-based clinical annotations and reviews.
    
- High agreement with project quality standards.
    
- Reliable throughput and timely delivery.
    
- Clear identification and escalation of safety-critical or ambiguous cases.
    
- Rapid incorporation of calibration feedback.

Certified Pharmacy Technician (CPhT)

Mercor is hiring on behalf of a leading AI research lab developing next-generation clinical AI systems. We're seeking experienced, licensed US Pharmacists to help improve AI-powered prior authorisation workflows by answering medication-related clinical questions and reviewing AI-generated responses for clinical accuracy, safety, clarity, and completeness. This is an opportunity to apply your clinical expertise to real-world healthcare AI while helping build safer, more reliable clinical decision-support systems.

**What You'll Do**

- Answer medication-related clinical questions using patient context, source materials, and labelling guidelines.
    
- Review AI-generated responses for clinical accuracy, safety, clarity, completeness, and evidence support.
    
- Correct inaccurate or incomplete responses and provide structured annotations and written feedback.
    
- Identify and escalate cases involving insufficient evidence, conflicting guidance, unclear clinical context, or patient safety concerns.
    
- Apply project rubrics and quality standards consistently while participating in calibration and feedback sessions.
    

**Representative topics include:**

- Medication indications
    
- Dosing recommendations
    
- Contraindications
    
- Drug interactions
    
- Treatment history
    
- Prior authorisation criteria
    
- Supporting clinical documentation
    

**Qualifications**

- Active US Pharmacist licence (PharmD or equivalent).
    
- Strong experience with medications, pharmacy workflows, and clinical decision-making.
    
- Excellent understanding of drug interactions, contraindications, and prescribing guidelines.
    
- Strong written communication skills and attention to detail.
    
- Comfortable following structured annotation guidelines.
    
- Available for 30–40 hours per week during the project.
    

**Preferred Experience**

- Prior authorisation or speciality pharmacy
    
- Managed care or medication access
    
- Epic, Cerner, or other electronic health record (EHR) systems
    
- Clinical quality assurance
    
- AI evaluation, clinical content review, or healthcare data annotation
    
- 340B or medication assistance programs
    

**What Success Looks Like**

- Consistently accurate, evidence-based clinical reviews.
    
- High agreement with project quality standards.
    
- Reliable throughput and timely delivery.
    
- Clear identification and escalation of safety-critical or ambiguous cases.
    
- Rapid incorporation of calibration feedback.

Licensed US Pharmacist

We are looking for generalist experts, who are regularly use web search.

**What you'll do**

- Do daily search queries, and rate the results.
    
- Complete a set of queries each day, within the day they're assigned.
    
- Leave short notes/annotations.
    

**Who we're looking for**

- Everyday web users who can judge whether a page answers their question.
    
- People with deep interest or expertise in specific areas, like basketball or reality TV.
    
- Strong written English; other languages are a plus.
    
- Careful, consistent and detail-oriented.
    

**Good to know**

- Before you start, you'll fill out a short background survey (age, location, languages, education, interests and similar).

Search Generalist

Mercor is seeking experienced Vietnamese Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Vietnamese-language tasks and on curating high-quality Vietnamese linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Vietnamese text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Vietnamese content to meet linguistic and cultural standards.
    
- Annotate Vietnamese text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Vietnamese, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Vietnamese.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Vietnamese Linguistic Experts

Mercor is seeking experienced Indonesian Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Indonesian-language tasks and on curating high-quality Indonesian linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Indonesian text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Indonesian content to meet linguistic and cultural standards.
    
- Annotate Indonesian text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Indonesian, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Indonesian.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Indonesian Linguistic Experts

Mercor is seeking experienced Malay Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Malay-language tasks and on curating high-quality Malay linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Malay text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Malay content to meet linguistic and cultural standards.
    
- Annotate Malay text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Malay, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Malay.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Malay Linguistic Experts

Mercor is seeking experienced Japanese Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Japanese-language tasks and on curating high-quality Japanese linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Japanese text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Japanese content to meet linguistic and cultural standards.
    
- Annotate Japanese text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Japanese, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Japanese.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Japanese Linguistic Experts

Mercor is seeking experienced Chinese Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Chinese-language tasks and on curating high-quality Chinese linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Chinese text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Chinese content to meet linguistic and cultural standards.
    
- Annotate Chinese text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Chinese, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Chinese.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Chinese Linguistic Experts

Mercor is seeking experienced Telugu Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Telugu-language tasks and on curating high-quality Telugu linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Telugu text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Telugu content to meet linguistic and cultural standards.
    
- Annotate Telugu text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Telugu, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Telugu.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Telugu Linguistic Experts

Mercor is seeking experienced Hindi Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Hindi-language tasks and on curating high-quality Hindi linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Hindi text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Hindi content to meet linguistic and cultural standards.
    
- Annotate Hindi text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Hindi, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Hindi.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Hindi Linguistic Experts

Mercor is seeking experienced Arabic Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Arabic-language tasks and on curating high-quality Arabic linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Arabic text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Arabic content to meet linguistic and cultural standards.
    
- Annotate Arabic text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Arabic, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Arabic.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Arabic Linguistic Experts

Mercor is seeking experienced Turkish Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Turkish-language tasks and on curating high-quality Turkish linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Turkish text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Turkish content to meet linguistic and cultural standards.
    
- Annotate Turkish text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Turkish, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Turkish.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Turkish Linguistic Experts

Mercor is seeking experienced Russian Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Russian-language tasks and on curating high-quality Russian linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Russian text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Russian content to meet linguistic and cultural standards.
    
- Annotate Russian text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Russian, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Russian.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Russian Linguistic Experts

Mercor is seeking experienced German Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in German-language tasks and on curating high-quality German linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated German text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite German content to meet linguistic and cultural standards.
    
- Annotate German text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in German, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in German.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

German Linguistic Experts

Mercor is seeking experienced Portuguese Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Portuguese-language tasks and on curating high-quality Portuguese linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Portuguese text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Portuguese content to meet linguistic and cultural standards.
    
- Annotate Portuguese text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Portuguese, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Portuguese.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Portuguese Linguistic Experts

Mercor is seeking experienced Spanish Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in Spanish-language tasks and on curating high-quality Spanish linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated Spanish text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite Spanish content to meet linguistic and cultural standards.
    
- Annotate Spanish text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in Spanish, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in Spanish.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

Spanish Linguistic Experts

Mercor is seeking experienced English Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in English-language tasks and on curating high-quality English linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated English text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite English content to meet linguistic and cultural standards.
    
- Annotate English text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in English, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in English.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

English Linguistic Experts

Mercor is seeking experienced French Linguistic Experts to join a cutting-edge AI research project in partnership with a leading research lab. This role centers on evaluating how effectively a large language model (LLM) performs in French-language tasks and on curating high-quality French linguistic data to train and improve the model's understanding and generation capabilities.

**Key Responsibilities:**

- Evaluate the quality and accuracy of LLM-generated French text across various use cases (e.g., translation, summarization, dialogue, grammar correction).
    
- Edit, refine, or rewrite French content to meet linguistic and cultural standards.
    
- Annotate French text for grammatical, syntactic, and semantic features.
    
- Identify model errors and language gaps, and collaborate with AI researchers to improve LLM performance.
    
- Provide detailed linguistic feedback and analysis to guide ongoing model training efforts.
    

**You're a strong fit if you have:**

- Native or near-native fluency in French, with excellent command over grammar, syntax, and stylistics.
    
- Professional experience in translation, editing, linguistic annotation, or NLP data work in French.
    
- Strong understanding of linguistic nuances, regional variations, and context-appropriate usage.
    
- Interest in AI and LLM-driven language technologies (preferred but not required).
    
- Excellent attention to detail and ability to spot subtle errors or unnatural phrasing.
    
- Clear communication skills and experience working in distributed, remote teams.
    

**Why Join**

- Contribute to cutting-edge AI research in partnership with a leading research lab.
    
- Work on high-impact projects that directly support the development of advanced AI systems.
    
- Gain hands-on exposure to state-of-the-art AI research and development.
    
- Join a fast-moving project where your expertise and judgment can have a meaningful impact.

French Linguistic Experts

Mercor is hiring board-certified radiologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in radiology.

**Key Responsibilities**

- Evaluate AI answers to radiology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABR Diagnostic Radiology** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Radiologist

Mercor is hiring board-certified cardiologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in cardiology.

**Key Responsibilities**

- Evaluate AI answers to cardiology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABIM Cardiovascular Disease** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Cardiologist

Mercor is hiring board-certified anesthesiologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in anesthesiology.

**Key Responsibilities**

- Evaluate AI answers to anesthesiology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABA Anesthesiology** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Anesthesiologist

Mercor is hiring board-certified orthopedic surgeons (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in orthopedic surgery.

**Key Responsibilities**

- Evaluate AI answers to orthopedic surgery questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABOS Orthopaedic Surgery** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Orthopedic Surgeon

Mercor is hiring board-certified dermatologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in dermatology.

**Key Responsibilities**

- Evaluate AI answers to dermatology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABD Dermatology** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Dermatologist

Mercor is hiring board-certified general surgeons (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in general surgery.

**Key Responsibilities**

- Evaluate AI answers to general surgery questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABS General Surgery** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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 Surgeon

Mercor is hiring board-certified critical care physicians (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in critical care.

**Key Responsibilities**

- Evaluate AI answers to critical care questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **Critical Care Medicine (ABIM, ABA, ABEM or ABS)** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Critical Care Physician

Mercor is hiring board-certified obstetrician-gynecologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in obstetrics and gynecology.

**Key Responsibilities**

- Evaluate AI answers to obstetrics and gynecology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABOG Obstetrics and Gynecology** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Obstetrician-Gynecologist (OB/GYN)

Mercor is hiring board-certified neurologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in neurology.

**Key Responsibilities**

- Evaluate AI answers to neurology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABPN Neurology** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Neurologist

Mercor is hiring board-certified rheumatologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in rheumatology.

**Key Responsibilities**

- Evaluate AI answers to rheumatology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABIM Rheumatology** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Rheumatologist

Mercor is hiring board-certified nephrologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in nephrology.

**Key Responsibilities**

- Evaluate AI answers to nephrology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABIM Nephrology** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Nephrologist

Mercor is hiring board-certified infectious disease physicians (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in infectious disease.

**Key Responsibilities**

- Evaluate AI answers to infectious disease questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABIM Infectious Disease** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Infectious Disease Physician

Mercor is hiring board-certified endocrinologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in endocrinology.

**Key Responsibilities**

- Evaluate AI answers to endocrinology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABIM Endocrinology, Diabetes and Metabolism** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Endocrinologist

Mercor is hiring board-certified ophthalmologists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in ophthalmology.

**Key Responsibilities**

- Evaluate AI answers to ophthalmology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABO Ophthalmology** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Ophthalmologist

Mercor is hiring board-certified otolaryngologists (ENT) (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in otolaryngology.

**Key Responsibilities**

- Evaluate AI answers to otolaryngology questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABOto Otolaryngology – Head and Neck Surgery** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Otolaryngologist (ENT)

Mercor is hiring board-certified geriatricians (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in geriatric medicine.

**Key Responsibilities**

- Evaluate AI answers to geriatric medicine questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABIM or ABFM Geriatric Medicine** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Geriatrician

Mercor is hiring board-certified psychiatrists (MDs and DOs) to evaluate health AI models in partnership with a leading AI lab.

You will read de-identified patient charts and judge AI answers to clinical questions in psychiatry.

**Key Responsibilities**

- Evaluate AI answers to psychiatry questions for clinical accuracy, safety and alignment with current standards of care
- Check each answer against the patient chart and decide which of two responses is stronger
- Write structured rationales on clinical rigor, completeness and clarity
- Flag errors that could compromise patient safety

**Required Qualifications**

- **MD or DO** from an accredited medical school
- Board certified in **ABPN Psychiatry** through an ABMS member board or the AOA
- Active, unrestricted US medical license
- Residency complete, plus fellowship where your specialty requires one
- **Currently practicing** and seeing patients in the US, with at least 1 year of independent practice after training
- 3+ years of post-training experience strongly preferred
- Clear written communication and close attention to detail

**Project Details**

- Remote and hourly, with flexible part-time hours
- Start date: immediate

**Application & Onboarding**

- Upload your resume
- Complete a 25-minute conversational interview on your background, experience and motivations
- Credential verification: license status, board certification, training and current practice setting
- 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.

Psychiatrist

## About the work

We are building a dataset of real retail trading behavior: complete brokerage trade histories, paired with the trader's own explanation of how they trade and why they made their biggest decisions. The data is used to study and model how individual traders make decisions.

This is a one-time task, paid a flat **$400** on completion.

## What you will do

1. **Upload your trade history.** Export your complete transaction history from your U.S. brokerage account using the broker's standard export, and upload it to our platform. It must cover at least 24 months and include every trade, with none removed. Remove your name, account numbers, address and other personal details before uploading.
    
2. **Describe your trading style.** Write a short summary (about 100 to 250 words) of your strategy, typical holding period, the instruments you trade and the platforms you use.
    
3. **Explain your 5 biggest trades.** Pick at least 5 of your most significant or influential trades, such as large gains, large losses or high-conviction calls, with stocks preferred. For each, explain your reasoning at entry or exit and what information drove the decision. Keep any reflection on how it turned out separate from your original reasoning. Each explanation must name a specific trade in your history, with the symbol, date, side and quantity matching that trade.
    

The writing takes up to about 1.5 hours.

## Pay

- **$400, paid once** you have uploaded your full history and fully annotated at least 5 trades.
    
- Partial submissions are not paid: the upload and all 5 annotations are required.
    

## Who we are looking for

- **Location:** United States only.
    
- **Trading experience:** at least 2 years of active trading on your own account, and at least 1,000 trades over that period (about 2 per trading day).
    
- **Instruments:** stocks; options count too.
    
- **Broker:** your account is with a U.S. retail broker, such as Robinhood, Schwab, Fidelity, E\*TRADE, Webull or Interactive Brokers.
    
- **Background:** any. No minimum education and any field of study, from current college students to graduate-degree holders. Non-finance professionals, finance professionals and full-time traders all qualify. Current or former professional traders can take part using their own personal account only.
    
- **Age:** 18 or older.
    
- **Willing to** share your complete brokerage trade history, with no trades removed.
    

## Not a fit

- Fewer than 2 years of history, or fewer than 1,000 trades
    
- Trading only through an account you don't own, such as a managed, employer or prop-firm account
    
- Trading mostly crypto or futures
    

## Data license agreement

Taking part requires signing Mercor's Expert Content License Agreement, which covers how your trading history and annotations are licensed and used. You sign it as part of applying.

Retail Trader

**About the Role**
Mercor is partnering with a leading AI lab to train frontier models on high-quality legal reasoning data. This is an **evergreen talent pool** for experienced **US Litigation attorneys** — by applying, you join a standing bench and are considered for ongoing and upcoming legal-AI projects as they launch. We review applications on a rolling basis and reach out when work that fits your background comes up.

Typical work includes recurring side-by-side evaluations and legal dataset generation: you'll compare AI-generated legal work, judge which response is stronger and why, and create realistic litigation tasks and reference answers.

**What You'll Do**

- Compare pairs of responses to litigation tasks (research memos, pleadings, motions, briefs, discovery and case strategy) and decide which is stronger, with clear reasoning
    
- Write concise justifications grounded in the source documents and applicable US law
    
- Create realistic legal prompts, fact patterns and model answers drawn from your litigation experience
    
- Flag errors, gaps and risky advice in AI-generated legal content
    
- Attend onboarding and calibration sessions
    

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

- Are admitted to practice in at least one US state (active bar membership)
    
- Have 3+ years of US litigation practice, such as civil or commercial litigation, motion practice, discovery and trial preparation
    
- Hold a J.D. from an ABA-accredited law school
    
- Write clearly and pay close attention to detail
    

**Bonus Qualifications**

- 2+ years of experience at an AmLaw 100 firm (strongly preferred)
    
- Prior work on legal AI projects with Mercor
    
- Prior data annotation, AI evaluation or legal-benchmark experience
    

**Role Highlights**

- Evergreen talent pool — apply once and be considered for ongoing projects as they launch
    
- Fully remote, flexible hours; recurring tasks as new work comes up
    
- Applications reviewed on a rolling basis

US Contract Attorney — Litigation

**About the Role**
Mercor is partnering with a leading AI lab to train frontier models on high-quality legal reasoning data. This is an **evergreen talent pool** for experienced **US In-House Counsel** — by applying, you join a standing bench and are considered for ongoing and upcoming legal-AI projects as they launch. We review applications on a rolling basis and reach out when work that fits your background comes up.

Typical work includes recurring side-by-side evaluations and legal dataset generation: you'll compare AI-generated legal work, judge which response is stronger and why, and create realistic in-house legal tasks and reference answers.

**What You'll Do**

- Compare pairs of responses to in-house legal tasks (contract review, policy and compliance questions, risk assessments and business-facing legal advice) and decide which is stronger, with clear reasoning
    
- Write concise justifications grounded in the source documents and applicable US law
    
- Create realistic legal prompts, fact patterns and model answers drawn from your in-house experience
    
- Flag errors, gaps and risky advice in AI-generated legal content
    
- Attend onboarding and calibration sessions
    

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

- Are admitted to practice in at least one US state (active bar membership)
    
- Have 3+ years of legal practice, including in-house experience advising a business on contracts, compliance, employment, risk or disputes
    
- Hold a J.D. from an ABA-accredited law school
    
- Write clearly and pay close attention to detail
    

**Bonus Qualifications**

- 2+ years of experience at an AmLaw 100 firm (strongly preferred)
    
- Prior work on legal AI projects with Mercor
    
- Prior data annotation, AI evaluation or legal-benchmark experience
    

**Role Highlights**

- Evergreen talent pool — apply once and be considered for ongoing projects as they launch
    
- Fully remote, flexible hours; recurring tasks as new work comes up
    
- Applications reviewed on a rolling basis

US Contract Attorney — In-House Counsel

**About the Role**
Mercor is partnering with a leading AI lab to train frontier models on high-quality legal reasoning data. This is an **evergreen talent pool** for experienced **US Transactional attorneys** — by applying, you join a standing bench and are considered for ongoing and upcoming legal-AI projects as they launch. We review applications on a rolling basis and reach out when work that fits your background comes up.

Typical work includes recurring side-by-side evaluations and legal dataset generation: you'll compare AI-generated legal work, judge which response is stronger and why, and create realistic transactional tasks and reference answers.

**What You'll Do**

- Compare pairs of responses to transactional tasks (contract drafting, redlines, issues lists, due diligence summaries and deal analyses) and decide which is stronger, with clear reasoning
    
- Write concise justifications grounded in the source documents and applicable US law
    
- Create realistic legal prompts, fact patterns and model answers drawn from your transactional experience
    
- Flag errors, gaps and risky advice in AI-generated legal content
    
- Attend onboarding and calibration sessions
    

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

- Are admitted to practice in at least one US state (active bar membership)
    
- Have 3+ years of US transactional practice, such as M&A, finance, capital markets, commercial contracts or corporate matters
    
- Hold a J.D. from an ABA-accredited law school
    
- Write clearly and pay close attention to detail
    

**Bonus Qualifications**

- 2+ years of experience at an AmLaw 100 firm (strongly preferred)
    
- Prior work on legal AI projects with Mercor
    
- Prior data annotation, AI evaluation or legal-benchmark experience
    

**Role Highlights**

- Evergreen talent pool — apply once and be considered for ongoing projects as they launch
    
- Fully remote, flexible hours; recurring tasks as new work comes up
    
- Applications reviewed on a rolling basis

US Contract Attorney — Transactional

**About the Role**
Mercor is partnering with a leading AI lab to train frontier models on high-quality legal reasoning data. We're hiring US litigators with federal court experience for a focused motion-brief evaluation project. For each review, you'll read two motion briefs written for the same case, decide which one you prefer, score both on several quality dimensions and mark errors directly in the PDFs.

**What You'll Do**

- Read two motion briefs for the same case and pick the stronger one, with clear reasoning
    
- Score each brief on a set of defined dimensions
    
- Annotate the brief PDFs inline, flagging legal, factual, citation and drafting errors
    
- Complete all the review as per the requirements
    
- Attend a short onboarding session before kickoff
    

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

- Are admitted to practice in at least one US state (active bar membership)
    
- Have 3+ years of US litigation practice with substantial federal court experience, including drafting or opposing motions
    
- Practice primarily in areas governed by federal law or litigated in federal court (practices focused mainly on state law, such as family law, are not a fit)
    
- Hold a J.D. from an ABA-accredited law school
    
- Write clearly and pay close attention to detail
    

**Bonus Qualifications**

- 2+ years of experience at an AmLaw 100 firm (strongly preferred)
    
- Prior work on legal AI projects with Mercor
    
- Prior data annotation, AI evaluation or legal-benchmark experience
    

**Role Highlights**

- Time commitment: about 30–40 hours total, all within a one-week review window
    
- Immediately required
    
- You must complete all required reviews, as the project design depends on every attorney finishing the full set

US Contract Attorney — Federal Litigation

Mercor is seeking experienced **software engineers at companies that serve retail investors** for a short, paid expert interview on behalf of a leading AI company building financial intelligence products. In a single **45–60 minute conversation**, you will share how engineering teams like yours evaluate, choose, and integrate third-party APIs and AI vendors. This is a good fit for backend, integrations, or platform engineers (or hands-on tech leads and engineering managers) at online brokerages, investing apps, robo-advisors, neobanks with investing, wealth platforms, or brokerage infrastructure providers.

* * *

### What You'll Do

- Join one 45–60 minute remote interview at a time that works for you.
    
- Walk through how your team evaluated or shortlisted an outside API or AI vendor (e.g. market data, news/research, identity, or AI chat), and what drove the final decision.
    
- Share what made integrations go well or badly: documentation, reliability, pricing, security and compliance review, and support.
    
- Give candid feedback on what you would want from vendors serving retail-investing products.
    

Please share only your own experience and opinions. You will **not** be asked for confidential or proprietary information about your employer.

* * *

### Requirements

- Currently employed **in-house** (not freelancing or consulting) as a software engineer, backend or integrations engineer, platform engineer, tech lead, or engineering manager who is still hands-on.
    
- Work at a company that reaches **retail investors**, such as an online brokerage, investing app, robo-advisor, neobank with investing, wealth platform, or brokerage infrastructure provider.
    
- Work on the **retail product side**, not institutional, hedge fund, or asset management desks.
    
- Evaluated or integrated a **third-party API or AI vendor in the past 12 months** (or will soon).
    
- **Involved in choosing** the vendor (helped evaluate or shortlist), not only building it after the decision was made.
    

* * *

### Nice to Have

- Integrated market data, news, research, or AI chat features.
    
- Experience across different company sizes or seniority levels.
    

* * *

### Why Join?

- Paid for your time, with a flexible, one-time commitment that fits alongside your current role.
    
- Share your perspective to help shape AI and data products built for retail investors.

Software Engineer – Retail Investing Platforms (Paid Expert Interview)

**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 LLMs.**

# 1\. Overview

Join a leading AI lab's cutting-edge research team and help build foundational AI models for science from the ground up. We're seeking talented Genomics and Cell Biology subject-matter experts (SMEs), including molecular biologists, cell biologists, geneticists and synthetic biologists working at the bench or computationally, to bring recent, hands-on laboratory expertise to the design and evaluation of advanced AI models for biology.

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

# 2\. Key Responsibilities

- Guide research and engineering teams to close knowledge gaps and improve AI model performance in molecular cloning, primer and CRISPR design, functional genomics, sequence analysis and cell-based assays.
- Design challenging, non-searchable biology tasks, benchmarks and training data, and write accurate, well-structured solutions to problems such as construct design, protocol planning and assay troubleshooting.
- Evaluate AI model outputs and step-by-step reasoning on biology tasks, judging the biological feasibility of proposed protocols and computational workflows, and provide clear, written technical feedback.
- Develop specifications, grading rubrics and verification processes for biology data produced by external technical teams, and act as the domain authority on data quality.
- Collaborate with other subject matter experts to ensure consistency and accuracy in training data.

# 3\. Core Qualifications

- PhD in molecular biology, cell biology, genetics, genomics, synthetic biology, biochemistry or a closely related discipline. Strong recent PhD graduates and postdoctoral researchers are encouraged to apply.
- Recent, hands-on experience (bench or computational) with workflows such as PCR / qPCR, molecular cloning, CRISPR, cell-based assays, sequence analysis or functional genomics.
- Broad experience across organisms, model systems and methods, rather than a single narrow technique.
- Comfortable using scientific software and AI tools (no coding required).
- Ability to engage reliably for at least 20 hours/week during weekdays.
- Strong written communication and collaboration skills, and the ability to explain complex technical decisions clearly.
- Nice to have: 1 to 3 years of post-PhD experience, or experience evaluating AI models or agents, designing benchmarks, or writing grading rubrics.

**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, or an appropriate international entity, serves as the employer of record for these engagements, providing 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.

Genomics & Cell Biology Specialist

**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 LLMs.**

# 1\. Overview

Join a leading AI lab's cutting-edge research team and help build foundational AI models for science from the ground up. We're seeking talented Drug Discovery subject-matter experts (SMEs), including pharmacologists, DMPK / ADME scientists and toxicologists from pharma, biotech, contract research or academic settings, to bring deep, hands-on discovery expertise to the design and evaluation of advanced AI models for drug discovery.

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

# 2\. Key Responsibilities

- Guide research and engineering teams to close knowledge gaps and improve AI model performance in mechanism of action, target and cellular pharmacology, ADME/Tox, and PK/PD.
- Design challenging, non-searchable drug discovery tasks, benchmarks and training data, and write accurate, well-structured solutions to problems such as interpreting assay readouts, identifying compound liabilities and planning optimization strategy.
- Evaluate AI model outputs and step-by-step reasoning on drug discovery tasks, diagnosing errors in scientific logic, tool usage and factual accuracy, and provide clear, written technical feedback.
- Develop specifications, grading rubrics and verification processes for drug discovery data produced by external technical teams, and act as the domain authority on data quality.
- Advise on assay design and quality control, experimental failure modes, and the biological and pharmacological validity of model outputs.
- Collaborate with other subject matter experts to ensure consistency and accuracy in training data.

# 3\. Core Qualifications

- PhD in pharmacology, pharmaceutical sciences, toxicology, DMPK, biochemistry or a closely related discipline, or equivalent research experience.
- 3+ years of experience in early-to-mid stage drug discovery, pharmacology, DMPK / ADME or toxicology at a recognized organization, such as a pharmaceutical or biotech company, a contract research organization, or an academic drug discovery group.
- Hands-on experience analyzing experimental drug discovery data, such as in vitro ADME and safety assays, PK/PD studies, CRO assay readouts or LC-MS bioanalysis, and using it to guide compound decisions.
- Comfortable using PK/PD or data analysis software and scientific AI tools (no coding required).
- Ability to engage reliably for at least 20 hours/week during weekdays.
- Strong written communication skills and the ability to explain complex technical decisions clearly.
- Nice to have: experience with PK/PD or ADME modeling, writing grading rubrics, designing benchmark tasks, or evaluating scientific AI models.

**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, or an appropriate international entity, serves as the employer of record for these engagements, providing 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.

Drug Discovery Specialist, Pharmacology & ADME/Tox

**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 LLMs.**

# 1\. Overview

Join a leading AI lab's cutting-edge research team and help build foundational AI models for science from the ground up. We're seeking talented Chemistry subject-matter experts (SMEs), including synthetic, organic, medicinal, analytical and physical chemists from academia or industry, to bring deep, hands-on laboratory expertise to the design and evaluation of advanced AI models for chemistry.

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

# 2\. Key Responsibilities

- Guide research and engineering teams to close knowledge gaps and improve AI model performance in synthetic chemistry, reaction mechanisms, structure elucidation, and physical-chemical property reasoning.
- Design challenging, non-searchable chemistry tasks, benchmarks and training data, and write accurate, well-structured solutions to problems such as multi-step route design, reaction optimization and spectroscopic characterization.
- Evaluate AI model outputs and step-by-step reasoning on chemistry tasks, diagnosing errors in chemical logic, tool usage and factual accuracy, and provide clear, written technical feedback.
- Develop specifications, grading rubrics and verification processes for chemistry data produced by external technical teams, and act as the domain authority on data quality.
- Advise on experimental design, common lab failure modes, and the chemical validity of model outputs, including molecular representations such as SMILES.
- Collaborate with other subject matter experts to ensure consistency and accuracy in training data.

# 3\. Core Qualifications

- PhD in chemistry (synthetic, organic, medicinal, analytical, physical or a closely related discipline), or equivalent research experience.
- 3+ years of hands-on chemistry experience at a recognized organization, such as a pharmaceutical, biotech, chemical or materials company, a contract research organization, or a university research group.
- Hands-on experience in small-molecule synthesis, including designing and running multi-step routes and optimizing reactions.
- Practical experience characterizing compounds with analytical techniques such as NMR, mass spectrometry, IR and HPLC / LC-MS, and interpreting the resulting data.
- Comfortable using cheminformatics and scientific AI tools (no coding required).
- Ability to engage reliably for at least 20 hours/week during weekdays.
- Strong written communication skills and the ability to explain complex technical decisions clearly.
- Nice to have: experience with cheminformatics representations (SMILES / SMARTS), writing grading rubrics, designing benchmarks, or evaluating scientific AI models or agents.

**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, or an appropriate international entity, serves as the employer of record for these engagements, providing 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.

Chemistry Specialist, Synthetic & Analytical Chemistry

**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 MLOps and ML systems engineers with hands-on experience in large language model infrastructure across any of four areas: accelerator kernel programming, performance profiling and trace analysis, debugging accelerated and distributed workloads, and high-throughput inference serving. Experience with JAX, XLA or TPUs is especially valuable. This role involves AI model training and evaluation work, including writing and assessing ML systems tasks and solutions to generate high-quality training data for frontier AI systems.

This is a fully remote role open to candidates worldwide. Depending on where you are based, your engagement will be arranged through Cincinnatus LLC or one of its trusted employer-of-record partners in your country, with the opportunity to be placed at a leading AI lab as part of their extended workforce. **This is a 40-hour full-time engagement, with no conflicts/no other engagements.**

# 2\. Key Responsibilities

- Design challenging tasks across kernels, profiling, debugging and inference serving, including adversarial problems that expose where frontier models fail on accelerator code (for example Pallas kernels on TPU), and write accurate, well-structured solutions to them.
    
- Guide research and engineering teams to close knowledge gaps and improve AI model performance on ML systems, compilers and training infrastructure topics.
    
- Evaluate ML systems tasks and solutions, and provide clear written technical feedback that stands up to expert review.
    
- Develop guidelines and detailed rubrics covering kernel optimization, profiler output interpretation, distributed systems reasoning, and serving throughput and latency trade-offs.
    
- Collaborate with other subject matter experts to keep training data consistent and accurate.
    

# 3\. Core Qualifications

- 2+ years of hands-on professional experience in ML systems, ML infrastructure, model serving, or accelerator performance engineering. This is a hands-on systems role rather than an applied modelling or data science one.
    
- Practical experience in at least one of the following, with more than one a strong plus: writing or optimizing custom kernels (Pallas, Triton, CUDA, CUTLASS); performance profiling and trace analysis (JAX/XLA profiler, Kineto, torch.profiler, Nsight); debugging distributed or accelerator-bound workloads; serving large language models at scale (vLLM, SGLang, TensorRT-LLM, JetStream, KV cache, paged attention, continuous batching).
    
- Working production experience with JAX and/or PyTorch. Framework-level depth is a strong plus: custom operators, sharding and distributed training (pjit/shard_map, FSDP, Megatron, MaxText), or compiler and graph-level work (XLA/StableHLO, torch.compile, MLIR).
    
- Experience with modern accelerators such as TPU (v4 to v6e), H100, B200, Trainium or MI300, and the ability to reason about throughput, latency and memory trade-offs.
    
- Demonstrable career progression.
    
- 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 engage highly skilled professionals for contingent and contract-based opportunities. Working directly or through local employer-of-record partners, Cincinnatus handles the employment or contracting relationship, payroll, benefits where applicable, and compliance in each country, while placing professionals 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.

MLOps Engineer, LLM Performance (Kernels, Profiling, Serving)

**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 generative video models that aim for theatrical-grade finishing: consistent color across shots, accurate skin tones, multi-shot pacing, clean scene cuts and HDR-ready deliverables. We're looking for experienced colorists, finishing and online editors, narrative editors and post-production specialists to help define what excellent finishing looks like, and to judge where the models get it right or wrong. This is a full-time role of approximately 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

- **Set the quality bar:** Define clear standards for color consistency, skin tones, multi-shot pacing, scene cuts and HDR preparation, critique current evaluations, and help build a taxonomy of the ways generated footage fails.
- **Curate benchmarks:** Identify, grade, edit and curate strong examples of excellent and genuinely hard color grades and multi-shot edits, and test early model capabilities against them.
- **Critique model outputs:** Review generated sequences and write precise, actionable notes on color shifts, contrast, banding and compression, and editorial rhythm.
- **Shape the reviewer pool and captions:** Help define how human reviewers are vetted and calibrated, and review captioning guidelines so color and editorial detail is described accurately.
- **Collaborate with other experts** to keep evaluations consistent and accurate.

# 3\. Core Qualifications

- 7+ years of professional experience in post-production, color grading and editorial finishing.
- Credits on 2+ professional films.
- A background in at least one of: Senior Digital Intermediate (DI) or Finishing Colorist (Resolve or Baselight, shot matching, HDR and Dolby Vision); Finishing or Online Editor (conform, color pipelines, mastering deliverables); Lead Narrative Film or Television Editor; or Post-Production Supervisor or Color Science and Pipeline Specialist (ACES, Rec.709, Rec.2020, P3).
- A meticulous eye for color shifts, skin tones, contrast, banding and compression, and editorial rhythm.
- Hands-on use of generative tools to create and finish test visual samples.
- Nice to have: reliable access to a color-accurate 4K/HDR display for pixel-level review.
- Ability to engage reliably for approximately 40 hours/week during weekdays.
- Strong written communication and the ability to turn color and editorial detail into precise language for captions and 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.

Colorist & Finishing Editor

**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 generative video models that aim for feature-quality visual effects and preproduction: micro detail, physically plausible simulation, clean multi-layer integration, previs and concept art, carried into a new output. We're looking for experienced VFX and compositing supervisors, FX and CG specialists, previs supervisors and concept artists to help define what excellent VFX work looks like, and to judge where the models get it right or wrong. This is a full-time role of approximately 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

- **Set the quality bar:** Define clear standards and an artifact taxonomy for micro detail, multi-layer integration, physics, previs and concept art, and critique current evaluations.
- **Curate benchmarks:** Identify, generate and curate strong examples of excellent and genuinely hard VFX, simulation, previs and concept work, and test early model capabilities against them.
- **Critique model outputs:** Review generated footage frame by frame and write precise, actionable notes on temporal instability, compositing seams, spill, physics and fine detail.
- **Shape the reviewer pool and captions:** Help define how human reviewers are vetted and calibrated, and review captioning guidelines so VFX, physics and preproduction detail is described accurately.
- **Collaborate with other experts** to keep evaluations consistent and accurate.

# 3\. Core Qualifications

- 7+ years of professional experience in feature VFX, animation or virtual production.
- Credits on 2+ professional films.
- A background in at least one of: VFX Supervisor, Compositing Supervisor or Lead Nuke or Flame Compositor; FX Technical Director or CG Supervisor (fluids, pyro, cloth, hair); Previs or Postvis Supervisor; or Senior Concept Artist, Matte Painter or Visual Development Artist.
- A meticulous eye for temporal instability, compositing seams, spill, physics and micro detail.
- Hands-on use of generative tools to create concept art, previs and test samples for comparison.
- Nice to have: reliable access to a 4K display for pixel-level review.
- Ability to engage reliably for approximately 40 hours/week during weekdays.
- Strong written communication and the ability to turn VFX, physics and preproduction detail into precise language for captions and 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.

VFX & Compositing Supervisor

**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 generative video models that aim to capture human performance and staging faithfully: acting realism, blocking, screen direction, eyelines, continuity and emotional nuance, carried into a new output. We're looking for experienced directors, assistant directors, animation supervisors and performance specialists to help define what a convincing, well staged performance looks like, and to judge where the models get it right or wrong. This is a full-time role of approximately 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

- **Set the quality bar:** Define clear standards for acting realism, blocking, screen direction (the 180-degree rule and eyelines) and continuity, critique current evaluations, and help build a taxonomy of the ways generated performances fail.
- **Curate benchmarks:** Identify, generate and curate strong examples of excellent and genuinely hard dramatic performances and staging, and test early model capabilities against them.
- **Critique model outputs:** Review generated scenes the way you would in dailies, and write precise, actionable notes on performance, staging and continuity.
- **Shape the reviewer pool and captions:** Help define how human reviewers are vetted and calibrated, and review captioning guidelines so performance and directing nuance is described accurately.
- **Collaborate with other experts** to keep evaluations consistent and accurate.

# 3\. Core Qualifications

- 7+ years of professional experience in film, television, theater or animation.
- Credits on 2+ professional films.
- A background in at least one of: Film or Television Director or 1st Assistant Director; Animation Director or Character Animation Supervisor; Script Supervisor; or Performance Capture Director, Acting Teacher or Coach (film or theater).
- A meticulous eye for micro expressions, emotional beats, eyelines, continuity and staging.
- Hands-on use of generative image and video tools (e.g., Runway, Midjourney, Sora, Kling) to create your own samples for testing and comparison.
- Nice to have: reliable access to a 4K display for pixel-level review.
- Ability to engage reliably for approximately 40 hours/week during weekdays.
- Strong written communication and the ability to turn acting, blocking and directing detail into precise language for captions and 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.

Performance & Directing Supervisor

**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 generative video models that aim to capture true cinematic fidelity: lens choices, sensor behavior, camera motion, motivated lighting, exposure and color, carried faithfully into a new output. We're looking for experienced cinematographers and camera and lighting specialists to help define what excellent camera and lighting work looks like, and to judge where the models get it right or wrong. This is a full-time role of approximately 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

- **Set the quality bar:** Define clear standards for optics, sensor behavior, camera motion, lighting motivation and exposure, critique current evaluations, and help build a taxonomy of the ways generated footage fails.
- **Curate benchmarks:** Identify, generate and curate strong examples of excellent and genuinely hard camera and lighting setups, and test early model capabilities against them.
- **Critique model outputs:** Review generated footage shot by shot and write precise, actionable notes on lensing, movement, lighting and exposure.
- **Shape the reviewer pool and captions:** Help define how human reviewers are vetted and calibrated, and review captioning guidelines so optical and lighting detail is described accurately.
- **Collaborate with other experts** to keep evaluations consistent and accurate.

# 3\. Core Qualifications

- 7+ years of professional experience in film, television or virtual production.
- Credits on 2+ professional films.
- A background in at least one of: Director of Photography / Cinematographer (film, TV or commercial); Gaffer / Chief Lighting Technician; Camera Operator, 1st AC or Digital Imaging Technician (DIT); or Virtual Production / CG Lighting & Camera Layout Supervisor.
- A meticulous eye for lens optics, sensor behavior, motivated lighting, exposure and color spaces.
- Hands-on use of generative image and video tools (e.g., Runway, Midjourney, Sora, Kling) to create your own samples for testing and comparison.
- Nice to have: reliable access to a calibrated 4K display for pixel-level review.
- Ability to engage reliably for approximately 40 hours/week during weekdays.
- Strong written communication and the ability to turn optical and lighting detail into precise language for captions and 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.

Cinematographer

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)

**This is a full-time internal role at Mercor, open to candidates based in India only.** You will work directly as part of Mercor's team.

## About the role

Mercor is looking for a Customer Experience Operations specialist to own how experts experience our platform end to end. You will be required to get things done by coordinating several owners across Engineering, Operations, Product and Talent Success, and making sure problems that cross teams actually get fixed.

## What you'll do

- Own cross-functional workstreams that affect the expert experience, from onboarding and support to payments and project matching
    
- Coordinate several owners across Engineering, Operations and other teams: set priorities, run check-ins, unblock work and hold people to deadlines
    
- Spot expert friction in feedback, support tickets and data, then turn it into clear, prioritized asks with respective teams across timezones
    
- Build and run lightweight processes, dashboards and playbooks that keep work moving without heavy overhead
    
- Use AI tools every day to automate repetitive work, summarize feedback, draft processes and speed up sprint cycles
    
- Report progress and risks clearly to product managers & leadership
    

## Who you are

- An operator who gets things done: you have founded or run a startup, or held a high-ownership operations, product ops or chief-of-staff style role
    
- Comfortable leading through influence and coordinating engineers, operators and other stakeholders without formal authority
    
- Fluent with AI tools (Claude, agents, automation tools) and keen to find new ways to use them
    
- Organized and structured, with sound judgment on what matters most
    
- A clear, concise writer and communicator
    
- Comfortable with ambiguity and a fast-moving startup environment
    

## Nice to have

- Experience with marketplaces, gig or contractor platforms, or customer or talent experience functions
    
- Comfort with data: SQL, spreadsheets or BI tools
    
- Experience building internal tools or workflows with no-code or AI tooling

Customer Experience Operations (India)

### 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)

**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

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)

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)

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