Top QA Engineer Jobs in London

Designs, develops, and maintains Python-based automated test frameworks, scripts, tools, and reusable test suites for software and hardware products. Integrates automated testing into CI/CD pipelines, performs manual testing, troubleshoots automation issues, documents test plans and results, and collaborates with developers and product teams to improve coverage, stability, and product quality.

Designs, develops, and maintains Java-based automated API, integration, and end-to-end tests. The role integrates testing into Azure DevOps pipelines, validates distributed and asynchronous workflows, investigates failures using logs, databases, and pipeline results, and improves test reliability and coverage. It also supports exploratory, performance, accessibility, security, and operational-readiness testing, manages traceable test evidence in Jira/Zephyr, and communicates risks and release quality to stakeholders.

Designs, develops, maintains, and executes Java-based UI, API, integration, regression, and end-to-end automated tests using Selenium and RestAssured. The role supports shift-left quality engineering, CI/CD test execution, test data management, defect investigation, traceability, documentation, and Agile delivery. It collaborates with engineers, product managers, SMEs, and QA colleagues while contributing to non-functional, performance, security, and accessibility testing for regulated healthcare and genomics software.

Senior QA Engineer responsible for defining testing strategies, building scalable Playwright automation frameworks, integrating quality checks into CI/CD pipelines, and testing functional and non-functional requirements including performance, security, and accessibility. The role includes defect triage, risk analysis, exploratory testing, peer reviews, mentoring QA colleagues, and leading knowledge-sharing initiatives. It is a 12-month fixed-term hybrid position requiring two office days weekly in Glasgow, Edinburgh, or Dundee.

Delivers risk-based quality assurance across complex technical systems. Responsibilities include functional, exploratory, API, integration, system, and end-to-end testing; investigating defects using APIs, logs, databases, SQL, and CI/CD evidence; maintaining test traceability; supporting automation and release readiness; and communicating quality risks to technical and non-technical stakeholders. The role also contributes to QA capability development, continuous improvement, and client delivery across unfamiliar technical environments.

Develop and maintain scalable automated testing frameworks for UKTV’s U VoD applications. Expand automation coverage, create reusable test scripts, utilities, and mocks, analyze results, document defects, and support manual testing across iOS, Android, web, and TV platforms. Collaborate with engineers, product owners, and cross-functional squads to embed quality throughout the software development lifecycle and continuously improve QA processes.

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.

Owns end-to-end feature testing and release quality for narrative mobile games across iOS and Android. Responsibilities include risk-based test planning, maintaining test suites, identifying release risks, triaging Jira bugs, mentoring junior QA staff, and collaborating with development, art, narrative, and production teams. The role also integrates narrative content and assets into Unity, validates file structures and dependencies, and supports weekly content releases and store submissions.

Own the quality strategy and end-to-end testing pipeline for an AI-generated product handling real-money transactions. Build automated UI, browser, mobile, pre-merge, nightly, release, and production testing gates; integrate testing with CI/CD; evaluate external tools; and improve reliability of critical financial flows. The role partners with engineering and DevOps, uses AI coding agents daily, and drives quality initiatives as an autonomous individual contributor.

Hands-on Senior QA Engineer responsible for ensuring quality across Moneybox products. Act as sole QA on squads, define testing and release strategies with stakeholders and Compliance, drive automation and AI tooling, assess test automation suitability, run cross-functional meetings, mentor QA team members, and represent the company externally.

Owns end-to-end QA coverage across firmware, cloud services, and mobile applications for IoT products. Tests device-to-cloud communication, APIs, business logic, connectivity failures, offline operation, OTA updates, and rollback scenarios. Analyzes device and cloud logs, develops test data strategies, prioritizes automation scenarios, and maintains smoke and regression testing processes. Requires systems thinking, embedded and mobile testing experience, API testing, Agile QA processes, and familiarity with relevant test management tools.

Designs QA strategies, evaluation frameworks, quality metrics, and automated testing systems for GenAI and agentic applications. Develops Python-based end-to-end tests across APIs, UIs, performance, prompts, and regression scenarios. Performs adversarial testing for hallucinations, bias, and security issues; builds monitoring and alerting systems; maintains golden datasets; and establishes testing best practices for reliable, safe, and trustworthy AI features.

Develop automated QA strategies and evaluation frameworks for GenAI and agentic systems. Build Python-based tests across APIs, UIs, performance, prompts, and regression scenarios. Measure model accuracy, relevance, safety, consistency, and latency; curate test datasets and golden examples; conduct adversarial testing for hallucinations and bias; maintain CI/CD test integration, production alerting support, documentation, and user acceptance testing.

Perform manual and automated testing for geoscience software within an agile development lifecycle. Create and update test scripts, document defects, maintain automated testing code, and collaborate with developers and support teams. The role also provides product demonstrations, client support, training, documentation assistance, and testing feedback while requiring knowledge of software development, desktop and web applications, Windows/Linux, and geoscience workflows.

Perform functional, non-functional, automated, performance, accessibility, security, and acceptance testing for complex cloud-native systems. Develop test automation and load-testing solutions, manage defects, integrate testing into CI/CD and DevSecOps workflows, and collaborate with developers, DevOps engineers, product teams, and stakeholders. The role also promotes testing best practices across distributed Agile teams and requires or supports obtaining Baseline Personnel Security Standard clearance.

Own performance and scalability testing across a platform of microservices and event-driven systems. Design realistic load, stress, soak, and spike tests; define performance thresholds and SLOs; integrate tests into CI/CD; and diagnose regressions using observability data, logs, and distributed tracing. Build reusable test assets, influence architecture and delivery decisions, and drive stakeholders toward performance improvements. The role requires strong programming, microservices expertise, k6 experience, and proactive ownership.

Lead software verification and validation for safety-critical medical device software, developing test strategies, protocols, execution reports, compliance-as-code workflows, and automated quality gates. Drive CI/CD and test automation, apply TDD and BDD, and collaborate with systems engineers to test hardware-integrated signal-processing applications. Ensure compliance with IEC 62304 Class C and ISO 14971 throughout the software development lifecycle.

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.

Senior QA professional responsible for designing scalable automation frameworks for mobile applications and APIs, integrating automated testing into CI/CD pipelines, and embedding quality, security, accessibility, performance, and test-data practices throughout delivery. The role collaborates with engineering, DevOps, and security teams, establishes testing standards, troubleshoots root causes, and mentors QA engineers. It is a hybrid position based in London, requiring two office days weekly.

Design, build, and maintain end-to-end automated testing for AWS web applications and Salesforce workflows. Automate cross-platform user journeys, Salesforce Lightning UI tests, REST API integrations, webhooks, secure queues, and database validations using SOQL. Integrate test suites into Git-based CI/CD pipelines while ensuring secure, reliable synchronization of enterprise DevOps data between AWS microservices and Salesforce.

Staff QA Automation Engineer responsible for defining quality engineering standards across a microservices organization. The role architects shared automation frameworks, CI testing strategies, unit, integration, contract, and service-level testing, and quality controls for canary releases. It also advances AI-driven regression optimization, change-risk analysis, mutation testing, test generation, and self-healing checks. This specialist individual contributor partners with distributed engineering teams to drive adoption, improve pipeline reliability, and establish scalable quality practices.

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

Designs and maintains automated UI, API, database, regression, integration, end-to-end, performance, and load test suites for a SaaS platform. Integrates quality gates into CI/CD pipelines, partners with developers and product teams in agile workflows, uses AI/LLM tools to improve testing efficiency, maintains technical documentation, and drives defect reduction and continuous quality improvement.

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.

Build and maintain end-to-end automated test frameworks for web and API platforms, integrate tests into CI/CD, own test coverage, write bug reports, and improve test reliability and speed.