QA Engineer
ycombinator
Job Description
- Build and maintain automated test suites (unit, integration, end-to-end) across backend and agent
- Own the CI gates that block regressions before merge, plus release acceptance criteria and sign-off
- Validate upgrade and rollback paths and overall release readiness
- Use automation and AI-assisted tooling to test faster — test generation, coverage, failure triage, and flaky-test detection
- Partner with engineering and the Detection & Validation unit on shared test infrastructure