At a Glance
- Tasks: Manually test features and automate high-value scenarios to ensure product quality.
- Company: Join White Circle, an AI Safety company at the forefront of innovation.
- Benefits: Equity package, paid time off, top medical insurance, and hybrid work options.
- Other info: Dynamic team culture with opportunities for growth and exciting team off-sites.
- Why this job: Make a real impact on AI safety while working with cutting-edge technology.
- Qualifications: 2+ years in QA automation, experience with Playwright and Python.
The predicted salary is between 45000 - 55000 £ per year.
We’re looking for a hands-on QA Engineer to own product quality across our rapid release cycles. You’ll spend most of your time manually testing new features and fixes across our web platform and APIs: exploring edge cases, identifying risks, running focused regression checks, and giving the team fast, clear feedback. You’ll also automate stable, high-value scenarios using Playwright and Python, helping us make repeatable testing faster and more reliable. This is a manual-first product QA role where automation is an important tool, not the entire job.
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.
You will:
- Manually test new features and fixes throughout frequent and short (sometimes as short as a working day) release cycles
- Quickly understand product changes, identify the highest-risk areas, and provide clear release feedback
- Perform exploratory, smoke, regression, and integration testing across our web platform and APIs
- Create concise, practical test plans and checklists for new features and releases
- Investigate unexpected behaviour, isolate root causes, and write clear, reproducible bug reports
- Work closely with engineers and product owners to clarify requirements and improve testability before development is complete
- Build, maintain, and integrate automated tests for stable/business-critical flows into CI/CD, improving reliability and speed
You’ll fit right in if you:
- Have 2+ years of QA automation experience & you’ve built frameworks from scratch
- Have experience with Playwright for end-to-end UI testing and know how to structure scalable test suites
- Write clean automation code in Python (pytest, fixtures, parametrize)
- Have plugged automated tests into CI/CD pipelines (GitHub Actions, GitLab CI, or similar)
- Communicate clearly and work well with others & have fluent English
- Have experience working with AI coding agents and LLM-powered developer tools, and understand how to use them effectively to improve productivity and testing workflows
- Are curious, proactive, and eager to learn new things: you ask questions, think critically, and constantly look for ways to improve and optimise existing processes and solutions
A big plus:
- Experience testing AI or LLM-based products, handling non-deterministic outputs, confidence scoring, edge-case prompts
- Familiarity with performance or load testing (k6, Locust)
- Experience with Postman, Insomnia, Yaak or API contract testing
- Background in security-aware QA or SOC 2 environments
Why White Circle
- Meaningful equity package
- Paid time off in line with your local regulations, no matter where you work from
- Work from Paris (hybrid) + relocation package
- Best medical insurance in France
- All the hardware, tools, and services you need
- Covered subscriptions for AI agents and IDEs
- Team off-sites twice a year: we’ve recently been to the Alps and to Saint-Tropez
How we hire
- Intro call with HR (20 min)
- Take-home test task
- Technical interview with QA Engineer (1h)
- Final call with our CEO & Head of Engineering (45 min)
QA Engineer (Manual + Automation) employer: White Circle
At White Circle, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration in the field of AI safety. Our team enjoys comprehensive benefits, including paid time off, medical insurance for our France-based employees, and the opportunity to work in vibrant locations like Paris or London, with relocation support available. We are committed to employee growth, providing access to cutting-edge tools and resources, as well as unique team-building experiences that enhance both professional development and camaraderie.
