Top QA Engineer Jobs in London

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.

Own manual and automated QA for web (Vue.js/Rails) and native mobile (iOS/Android) plus React Native. Drive shift-left testing, maintain TestRail, perform smoke/regression releases, improve automation coverage, and act as a release gate to ensure high reliability in safety-critical rail B2B SaaS environments.

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 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 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.

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

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.

Design, build, and maintain manual and automated end-to-end tests for front-end and back-end APIs. Use Cucumber BDD, Postman, Jenkins, and SQL to validate functionality, data integrity, and performance across cloud-native and big-data environments (GCP/BigQuery). Integrate tests into CI/CD pipelines, track defects in Jira, and collaborate with cross-functional Agile teams to ensure continuous quality.

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.

QA Engineer responsible for planning and executing manual and automated testing across an energy-focused SaaS data platform. Duties include test automation, exploratory, regression, acceptance, and performance testing; API and web application testing; defect reporting and root cause analysis; test coverage reporting; risk identification; and collaboration with engineering, product, support, and user teams to ensure reliable 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.

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.

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.

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 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.

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

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 design and technical requirements, collaborate with developers, and maintain high-quality standards.

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