Open Source Applied Engineer Talent Network

Mercor is seeking an exceptional open source contributor with deep expertise in Python, Java, C, JavaScript, or TypeScript to collaborate on high-impact projects with global reach. This role is ideal for engineers with a strong command of core programming fundamentals and a proven track record of consistent, high-quality contributions to leading open-source repositories.

Key Responsibilities:

• Design and oversee the creation of evaluations for a wide range of coding tasks across multiple languages, including JavaScript, TypeScript, Python, Java, and C.

• Develop test cases to accurately assess system performance in diverse engineering scenarios.

• Analyze system behavior on real-world user use cases to uncover strengths and improvement areas.

• Communicate evaluation results effectively to the research team to support continued development and optimization.

You're a great fit if you have:

• A strong GitHub (or similar) presence with frequent, high-quality contributions to top open-source projects in the last 12 months.

• Expertise in one or more of the following languages: Python, Java, C, JavaScript, or TypeScript.

• Deep familiarity with widely-used libraries, frameworks, and tools in your language(s) of choice.

• Excellent understanding of software architecture, performance tuning, and scalable code patterns.

• Strong collaboration skills and experience working within distributed, asynchronous teams.

• Confidence in independently identifying areas for contribution and executing improvements with minimal oversight.

• Comfortable using Git, CI/CD systems, and participating in open-source governance workflows.

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.