Open Source Contributor

11 March 2026 Hourly Remote English
Mercor
Apply on → Mercor
$50 – $85 per hour

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.

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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.

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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)

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Role Details

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

Compensation

  • Pay: $50 – $85/hour
  • Type: Hourly contract
  • Location: Remote

34 people hired recently for this role. 2 slots remaining.

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