Rodeo
Get started

White Circle

QA Engineer

London
Posted 1 day ago
Sign up to applySee more jobs like this

How your CV stacks up

1Upload CV
2Analyse CV
3Improve CV

Upload your CV to see how well it fits this job role

?%

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

Reasons to use Rodeo

I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?

Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.

Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.

Start with a chat, not a search bar

Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.

P

Graduate Consultant — 2026 Scheme

PwC·London, UK
£35,000/yr

Why you're a good match

Strong

Your economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.

See breakdown
Save jobNot relevant
View details

It searches the market for you

Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.

Why you're a good match

You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.

See breakdown
Strong

Experience fit

Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.

See breakdown
Strong

Only hits

No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.

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

Get help with your application

Your very own career expert that helps elevate your application to the next level.

Get help applying for this job

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)

Please submit your application in English - it’s our company language so you’ll be speaking lots of it if you join

Trusted by 25,000+ job seekers

“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”

Jessica, London

Get help applying for this job

Skills

Playwright
Python
Pytest
CI/CD
GitHub Actions
API Testing
End-to-End Testing
Test Automation Frameworks
LLM Testing
Regression Testing
Exploratory Testing
Load Testing
Postman
SOC 2
AI Coding Agents
English Fluency

Location

London, England, United Kingdom

Sign up to applySee more jobs like this