Software Engineer 3

The Agent Research and Tooling team at MongoDB is hiring a software engineer to build and maintain tooling, evaluation systems, and quality gates for agent skills. Responsibilities include building CLIs, libraries, evaluation harnesses, CI workflows, and safety gates. The role involves working at the intersection of developer tooling, applied AI, and software quality.

2+ years of experience in production software, developer tools, or internal platforms. Strong software engineering fundamentals in API design, testing, error handling. Experience building CLIs, libraries, test infrastructure, static analysis, or CI/CD. Ability to reason about correctness and safety with ambiguous input. Comfort in R&D environment. Good communication skills.