Open Source Contributor

Mercor is seeking experienced developers with a proven record of open-source contributions to join a high-quality, global network of engineers supporting AI, data, and enterprise software infrastructure projects.

This opportunity is designed for developers who are deeply engaged in the open-source ecosystem and have a passion for backend architecture, scalable systems, and reliable software engineering.

Key Responsibilities

• Design challenging coding problems with clear input/output specs, constraints, and explicit function signatures.
• Develop complete mini-repos, including:
• • Problem statement
  • Reference solution
  • Comprehensive unit tests (10–20 cases)
  • Executable test runner
• Implement clean, production-quality code aligned strictly with test expectations.
• Write high-coverage tests covering edge cases, invalid inputs, and performance constraints.
• Ensure full executability with no missing dependencies, configuration issues, or signature mismatches.

Requirements

• 3+ years of backend development experience in one or more of the following languages: Rust, C++, C, COBOL, Java, Ruby, PHP, Python, TypeScript, Go, C#, JavaScript
• Familiarity with Docker and basic CI/CD workflows (e.g., GitHub Actions or similar tools)
• Strong understanding of clean code, modular design, and performance optimisation
• Comfortable working with Git-based collaboration (PRs, issues, reviews)

Role Details

• Expected commitment: ~10–20 hours/week
• High-impact contributions to globally visible projects

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.