Go Engineer - Codebase Expert

• Select tasks from a pre-validated pool of Go repositories, each pinned to a specific git commit and arriving with an engineering question, positive and negative rubrics, foils, and a golden solution.
• Explore the repository until you genuinely understand the subsystem in question, including the relevant PR or issue history.
• Rewrite the task’s question to challenge frontier coding agents while ensuring it remains well-defined and fairly answerable.
• Adjust rubrics and foils to reward correct reasoning and reject plausible-but-wrong answers.
• Run the full validation loop in Studio - Check, Golden, Run, Analyze - and iterate until every stage passes.
• Document your work in the task README and submit for expert review, addressing reviewer feedback on returned tasks.

Must-Have

• 3+ years of professional software engineering experience with substantial production Go.
• Ability to navigate a large, unfamiliar Go codebase and explain runtime behavior.
• Fluency in Go concurrency, interfaces, module boundaries, and the standard library.
• Precise written English for crafting questions and rubrics.
• Comfortable with git at commit level, containerized environments, and command-line tooling.

Preferred

• Experience with distributed systems, networking, storage engines, or Kubernetes-ecosystem tooling.

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