Top QA Engineer Jobs in London

As a Staff Software Engineer (ML QA), you'll design and maintain testing infrastructure for the ML software stack, focusing on automation, software quality, and mentoring junior engineers in a collaborative environment.

Design, build, and maintain automated UI, API, and end-to-end test frameworks integrated with CI/CD. Define risk-based testing strategies, transition manual regression to intelligent automation, validate AI-generated code and LLM outputs, collaborate to improve testability and production quality, and champion AI-native testing practices across engineering teams.

Own QA across the product: plan and execute testing, build automated frontend (Angular/TypeScript) and API test suites, review stories, test AI outputs and financial flows, triage bugs, and sign off releases while embedding testing into development.

Design and execute manual test cases, perform cross-browser and cross-device testing, manage defect lifecycle in Jira/TestRail, conduct functional/regression/smoke/usability testing, write clear bug reports, and collaborate with developers to ensure release readiness.

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.

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

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.

The Quality Assurance Engineer will develop tests for sports technology products, improve product quality, collaborate in Agile teams, and maintain automated test suites.

Perform manual functional, regression, integration, and exploratory testing for a B2B SWP platform. Analyze requirements, write and maintain test cases and checklists, test APIs with Postman, debug with browser DevTools, log and track defects in Jira, participate in Agile ceremonies, and communicate quality status through release sign-off.

Design and build test infrastructure, automation, and tooling to validate ML software stacks and hardware; shape test architecture across CI pipelines, frameworks, simulators, emulators, and large ML workloads; mentor engineers and own complex validation projects.

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

Design and implement Python testing frameworks, conduct ETL testing, and collaborate in a CI/CD environment focusing on cloud-based data platforms.

Hands-on QA Engineer responsible for test strategy, manual and automated testing (Selenium, BDD), writing and executing test plans, reviewing stories and code, participating in agile ceremonies, maintaining test documentation and improving QA processes across the software delivery lifecycle.

Lead quality strategy and execution across Wealth Management products. Build and maintain automation for microservices, APIs and end-to-end flows, own performance testing, embed shift-left practices, monitor and debug distributed systems, integrate tests into CI/CD on AWS, and influence cross-functional teams. Drive QA for AI-driven features and mentor others while operating under high pressure.

Design and execute manual and automated tests for Google Cloud Identity. Perform API and security testing, identify and report bugs and vulnerabilities, validate fixes through regression testing, participate in code reviews, automate test processes, and document test cases and findings.

Validate and automate testing for AWS serverless, event-driven and modernized applications. Design and run functional, integration, contract, performance, resilience and security tests. Build automated test frameworks, integrate with CI/CD, leverage AWS Kiro for AI-assisted test generation and validation, and support migration/regression testing across microservices.

Lead quality efforts for professional design products (Cavalry, Affinity, Flourish). Define test strategy, drive shift-left QA, build and maintain automation frameworks, coach engineers, adopt AI/ML-driven testing, and improve processes and tooling to raise product quality for complex web and desktop applications.

The Senior QA Automation Engineer develops tests for the NiCE CXone software, conducts code reviews, resolves defects, and works collaboratively in an Agile team environment to ensure product quality.

Triage and resolve Master Data Management (Party, Risk, Reference) issues in Stibo STEP, run targeted data-cleansing sprints, monitor data quality dashboards, support releases/UAT, and maintain documentation and playbooks to prevent recurring data issues.

Validate and test blockchain and Web3 products across the development lifecycle: create and run test plans, validate smart contract and wallet interactions, test APIs and web platforms, track and verify bugs, collaborate on releases, and improve automation, reliability, performance, and security.

As a QA Engineer, you will design and automate tests to ensure the reliability and performance of Fogsphere's AI platform, collaborating with engineering teams throughout the development lifecycle.

Design and maintain the automation testing strategy at Incard, covering backend, frontend, and mobile applications, integrating with CI/CD pipelines, and focusing on quality assurance in a fintech environment.

The General Automation QA Engineer will perform both manual and automated testing, improve product quality, and collaborate with QA and engineering teams.

The Quality Assurance Engineer ensures product reliability by designing and executing test plans, maintaining automated test suites, and collaborating with teams to improve QA processes.