Top QA Engineer Jobs in London

Design, build and maintain Java-based automated test frameworks and suites (UI, API, integration, regression). Drive shift-left testing, create Gherkin test cases, ensure traceability, execute tests in CI/CD, investigate defects, manage test data, and collaborate with product and engineering teams to improve quality across the SDLC.

Build and maintain Python-based test automation frameworks and suites. Design and execute UI, API, integration and end-to-end tests, create Gherkin test cases, ensure traceability, support CI/CD pipelines, investigate defects, manage test data, and collaborate with product, engineering and QA teams to embed shift-left quality practices across the SDLC.

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

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.

Join the Business QA team to design and maintain automated end-to-end test suites, coordinate and support UAT, validate business workflows, demonstrate findings to stakeholders, analyze test results, manage UAT environments and data, and collaborate with product teams to improve quality and testing processes.

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.

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.

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 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.

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.

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.

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.

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.

The QA Engineer is responsible for testing applications and AI diagnostic outputs, ensuring quality, maintaining test strategies, and validating healthcare software compliance with industry regulations.

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.

Design, develop, and maintain automated functional and regression test suites (C#, BDD). Execute API, UI, and exploratory testing, integrate automation into CI/CD (GitHub Actions), leverage AI-assisted tools, collaborate across teams, produce BDD scenarios, QA documentation, and promote automation best practices.

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.

Design, build and maintain automated tests and frameworks (Playwright, API, performance). Shift-left with developers and product managers, integrate tests into CI/CD, conduct API and database testing, perform root-cause defect analysis, establish QA governance, coach teams on automation best practices, review requirements, track defects in Jira/XRAY, and drive AI initiatives converting user stories into Playwright scripts.

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.