Top QA Engineer Jobs in London

Responsible for leading quality assurance tasks across multiple projects, ensuring high-quality software and mentoring less experienced colleagues.

Own end-to-end product quality across web applications, REST APIs, iOS and Android mobile applications, backend services, and data pipelines. Design and execute manual, exploratory, regression, API, and data validation testing; document test cases and defects; identify edge cases; coordinate with engineering, product, mobile, platform, and research teams; triage customer issues; and serve as the final quality gate for releases.

Lead QA test strategy and automation for long-range video surveillance cameras. Design and implement automated test pipelines, collaborate cross-functionally on requirements and schedules, analyze results, maintain metrics, conduct field testing, and improve CI/CD-driven firmware/software release quality.

Test and automate end-to-end video playback across Smart TVs, set-top boxes, and game consoles. Build automation pipelines, simulate real-world network conditions, perform performance testing, triage failures, and collaborate in Agile teams to ensure high-quality, scalable video experiences.

The QA Engineer will enhance test automation frameworks, perform cross-functional testing, and ensure the quality of ClickHouse's cloud and open-source offerings.

Review and improve AI-generated role profiles for accuracy and consistency; spot and fix data issues; run QA workflows using agentic tools (e.g., Claude); collaborate with Data Science and Professional Services to define QA metrics, log defects, validate pipeline fixes, and document QA processes and standards.

Lead QA efforts across web, mobile, and backend systems by designing and executing test plans, performing manual and automated testing, validating data integrity, logging and retesting defects, and collaborating with Engineering and Product to ensure stable, high-quality releases.

Own QA for web and mobile releases: write and run manual and automated tests (web, mobile, API), build test frameworks, improve CI, track issues, mentor teammates, and influence requirements and quality processes.

As an Automation QA Engineer, you'll design and implement test frameworks for Oracle projects, focusing on automation testing for APIs and web interfaces, collaborating with development teams to identify and resolve defects.

Senior QA Automation Engineer to own and extend an in-house automated testing platform for a hedge-fund client. Full-stack development (React/JavaScript front end, Python back end), CI/CD and IaC (GCP, Terraform), AI-driven requirement interpretation and test generation, integrations with toolchain and enterprise design system, governance, auditability, and production adoption. Mentor a predominantly manual QA team and deliver production-grade, agent-orchestrated testing capabilities in a fast-paced London-based environment.

Manual and automated QA for Pod releases: run local/staging environments, submit transactions, verify APIs/receipts/state, reproduce and report bugs, write end-to-end and headless browser tests, and build release checklists and automation.

Own end-to-end quality validation for new features and releases on a genomics platform. Design, build, and maintain scalable automated regression suites (Playwright/Cypress/Selenium), run API/integration tests (Postman/Swagger), integrate tests into CI/CD, lead exploratory testing and release readiness, track defects to resolution, improve QA processes, and mentor junior QA engineers while communicating quality risks across teams.

Lead QA in cross-functional teams, define QA strategy, embed quality across the delivery lifecycle, manage release and incident processes, mentor junior testers, consult with clients to improve QA practices, and drive automation, accessibility, and continuous delivery.

Perform manual testing of web and enterprise applications: functional, regression, smoke, exploratory, API and DB testing. Create and maintain test cases and documentation, reproduce and triage defects with developers, participate in refinement and release testing, and improve QA processes.

Join the Systems Engineering team to qualify and release custom hardware and embedded firmware for Ring Smart Lighting and Ring Alarm products. Test and maintain embedded Linux/IoT devices, perform REST API and embedded device testing, use lab equipment, and follow Agile processes while collaborating across teams.

Design, build, and own a unified mobile automation platform (iOS/Android) using a TypeScript-first test framework. Integrate tests into GitHub Actions CI/CD, improve stability and observability, manage cloud device farm strategy, and mentor engineers to shift testing left and increase release confidence.

Build and maintain automated Playwright tests in JavaScript for customer applications, debug failures using Chrome DevTools, understand HTML/CSS, manage multiple customer accounts, improve QA tooling and practices, and communicate proactively in a remote, global team.

Contract QA Engineer to build and own QA strategy for a fast-moving AI product: design scalable QA processes, drive automation (integration, E2E, regression) across Django and NextJS, apply AI to QA tasks, and collaborate with engineers to enable safe, higher-cadence production shipping.

As a Senior QA Automation Engineer at Fireblocks, you will own the quality of financial applications, utilizing automation and AI to enhance testing processes and ensure robust product reliability.

As a Quality Assurance Engineer, you will test software, validate new features, perform regression testing, and manage user-reported bugs.

Lead mobile QA across iOS and Android: define test plans, run functional/exploratory/regression/UI/UX and E2E API tests on real devices and emulators, build and maintain UI+API automation integrated with CI/CD, support store releases and crash monitoring, collaborate with product and engineering, and track QA metrics.

The Senior Mobile QA Automation Engineer ensures software quality across mobile applications, developing automated tests, collaborating with developers, and advocating for quality standards.

As a Senior Mobile QA Automation Engineer at Proton, you will conduct manual and automated testing for iOS and Android applications, collaborating with development and support teams to ensure product quality.

Develop and execute automated tests for mobile applications, influence product design and requirements, collaborate with developers, and ensure quality in user experiences.

Develop and execute automated tests for mobile applications, influence design and technical requirements, collaborate with developers, and maintain high-quality standards.