Remote Source Contributor – Rust - AI Trainer

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

This opportunity is designed for developers who are deeply engaged in the open-source ecosystem and have a passion for systems programming, performance, safety, and reliability.

• 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 Rust code aligned strictly with test expectations.
  • Write high-coverage tests covering edge cases, invalid inputs, concurrency issues, and performance constraints.
  • Ensure full executability with no missing dependencies, borrow checker violations, or build configuration issues.

• 3–6 years of professional software development experience, with strong experience in Rust.
• Strong proficiency in Rust fundamentals, including ownership, borrowing, lifetimes, and trait-based design.
• Experience building backend services using frameworks such as Actix Web, Axum, Rocket, or similar.
• Working knowledge of async programming (Tokio, async/await).
• Experience with databases:
  Postgre
  
  SQL / MySQL / Mongo
  
  DB.
• Experience writing unit and integration tests using Rust’s built-in testing framework.
• Familiarity with Cargo, Docker, and basic CI/CD workflows (Git Hub Actions or similar).
• Strong understanding of memory safety, concurrency models, and performance optimisation.
• Comfortable working with Git-based collaboration (PRs, issues, reviews).

• High-impact contributions to globally visible infrastructure and systems projects.
• Part-time / Contract (10–20 hours per week).

Remote Open Source Contributor Rust AI Trainer $5085 per hour
• Vacaville, California, US