QA Engineer

Team: Engineering team Location: Paris Employment type: FullTime

TLDR: We’re looking for a QA Engineer to help us build reliable, scalable testing infrastructure. You’ll work with Playwright, Python, and CI/CD pipelines to own end-to-end quality across our platform, improve test reliability and speed, and help shape engineering quality standards.

ABOUT US

White Circle is an AI Safety company building the safety, reliability, and optimization layer for AI systems. At the core of our platform are policies – simple natural-language rules that define what an AI model should and shouldn’t do. We automatically test, enforce, and continuously improve these policies at scale.

• We’ve raised $11M from top funds, founders, and senior leaders at OpenAI, Anthropic, HuggingFace, Mistral, DeepMind, Datadog, Sentry, and others
• We process over one hundred million API calls every month
• We fine-tune and train our own LLMs so they run faster and cheaper than any open or proprietary model

We’re a small, highly focused team. If you want to work deeply on hard problems, see your work ship to production quickly, and influence how AI safety is actually built – you’re the one we need.

YOU WILL:

• Design, build, and maintain end-to-end test automation frameworks for our web platform and APIs
• Own test coverage for new features
• Integrate automated test suites into CI/CD pipelines
• Write clear, reproducible bug reports and work closely with engineers to get them resolved
• Build exploratory and regression test plans for each release cycle
• Improve test reliability & speed
• Help the team develop a quality mindset: review testability in design, flag risks early

YOU’LL FIT RIGHT IN IF YOU: