Git Environments Expert – Advanced Git SWE (3+ YOE)

1. Role Overview

Mercor is collaborating with a leading AI lab on the Git Environments project, a large-scale initiative designed to evaluate and train frontier language models on advanced Git workflows. We are seeking experienced software engineers and Git experts to create and quality-assure high-difficulty Git tasks across curated repositories. Contributors will design realistic version control scenarios—such as merge conflicts, rebases, recovery states, and history investigations—to help models develop safe, efficient, and technically sound Git practices. This is a project-based opportunity with potential for ongoing contributions based on performance and project needs.

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2. Key Responsibilities

• Design complex, realistic Git scenarios across multiple task categories (merge conflicts, interactive rebases, recovery, search, iterative committing)

• Author clear, deterministic task prompts with fully testable and verifiable success criteria

• Implement automated test suites (pytest) to validate repository state, commit history, and workflow correctness

• Develop and document oracle (reference) solutions using reproducible Git commands

• Define grading rubrics that properly separate deterministic checks from qualitative evaluation

• Conduct peer QA reviews of submitted tasks and refine artifacts to meet project standards

• Record task creation and QA workflows in accordance with project guidelines

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3. Ideal Qualifications

• 3+ years of professional experience working extensively with Git in production environments

• Advanced knowledge of Git internals and workflows (merging strategies, interactive rebase, reflog, bisect, branch manipulation, recovery techniques)

• Experience designing technical assessments, benchmarking frameworks, or engineering challenges

• Proficiency in Python and shell scripting for automation and test creation

• Strong attention to detail with the ability to write precise, unambiguous technical specifications

• Familiarity with Docker and reproducible development environments preferred

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4. More About the Opportunity

• Access to structured documentation, tooling, and curated repositories

• Clear QA framework with deterministic testing and rubric-based evaluation

• Opportunity to contribute to large-scale AI model benchmarking and reinforcement learning initiatives

• Dedicated Slack channel for technical questions and project support

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5. Application Process

• Submit your resume highlighting relevant Git and software engineering experience

• Qualified applicants may complete a brief skills-based assessment

• Approved contributors receive onboarding documentation and access to project tooling

• Initial contributions will be reviewed to ensure alignment with quality standards

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6. About Mercor

• Mercor is a talent marketplace that connects top experts with leading AI labs and research organizations.

• Our investors include Benchmark, General Catalyst, Adam D’Angelo, Larry Summers, and Jack Dorsey.

• Thousands of professionals across domains like law, creatives, engineering, and research collaborate through Mercor on frontier AI initiatives.

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

Contract and Payment Terms

• You will be engaged as an independent contractor.
• This is a fully remote role that can be completed on your own schedule.
• Projects can be extended, shortened, or concluded early depending on needs and performance.
• Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.
• Payments are weekly on Stripe or Wise based on services rendered.
• Please note: We are unable to support H1-B or STEM OPT candidates at this time.

About Mercor

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise. You will work on projects that focus on training and enhancing AI systems. You will be paid competitively, collaborate with leading researchers, and help shape the next generation of AI systems in your area of expertise.