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# Go Engineer - Codebase Expert

- **Company:** Mercor, Inc.
- **Location:** San Francisco, CA, United States (Remote available)
- **Experience:** Experienced
- **Salary:** $270,400
- **Contract:** Permanent contract
- **Skills:** Distributed Systems, Software Engineering, Git, Containerization, Kubernetes, Codebase
- **Published:** November 7, 2026
- **Apply:** https://www.thejobnetwork.com/job/e01c6e91-30da-497b-a7de-3a0728777bbe/go-engineer-codebase-expert

## About the Role

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.

## Description

* 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.