> Markdown version of [/jobs/ext/4534809-qa-automation-engineer](https://www.wearedevelopers.com/jobs/ext/4534809-qa-automation-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # QA Automation Engineer - **Company:** io - **Location:** London, United Kingdom - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Automation of Tests, PostgreSQL, MongoDB, Node.Js, Strategies of Testing, TypeScript, Web Content Accessibility Guidelines, Playwright, Production Code - **Published:** November 3, 2026 - **Apply:** https://www.totaljobs.com/job/test-automation-engineer/io-tt-job108273702 ## About the Role * Strong, hands-on TypeScript. You write test code to the same standard as production code, and you're comfortable reading a Node or Bun back end to work out what to test. ## Description * Define the test strategy for the platform: what quality means for us, where the real risks are and where testing effort should go * Build and maintain cross-service end-to-end and integration suites (Playwright or similar) that gate CI and that teams trust * Set the quality bar with product, design and engineering, and hold it when deadlines get tight * Protect backward compatibility so published customer experiences keep working as features and schemas change * Test experiences that brands configure themselves, using contract, model-based and property-based testing * Validate analytics and data across PostgreSQL and MongoDB, from pipeline integrity to aggregation accuracy * Own visual regression and cross-browser and cross-device testing for published experiences * Build WCAG accessibility checks into the pipeline * Use AI-assisted tools to generate tests, then review and harden what they produce