Remote Source Contributor - AI Trainer

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.

• 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.

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

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