Top QA Engineer Jobs in London

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.

The Senior QA Automation Engineer will lead quality initiatives, mentor teams, and enhance automation frameworks across product development cycles while ensuring testing standards and practices are maintained.

Design, build and maintain automated UI and backend tests using Selenium, Behave and Python. Manage the automated regression/CI test suite, configure test environments and data, participate in agile ceremonies, contribute to test strategy, report defects and test metrics, and perform root-cause analysis and risk mitigation.

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.

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.

Develop and maintain test automation and tooling for Smart TV and streaming devices. Build BDD-based test suites, integrate with CI/CD, drive reliability engineering, root-cause analysis, and release-quality improvements across playback, UX, streaming integrity, A/V sync and device interoperability.

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 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.

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.

The QA & Test Engineer will develop and execute the verification strategy for the NEXUS platform, ensuring compliance with DO-178C and interfacing with airworthiness authorities while building the QA function from scratch.

Develop and maintain automation testing frameworks, design test scripts for functional and performance testing, enhance CI/CD processes, and optimize testing strategies while managing defects and analyzing test data.

The Sr. QA Engineer leads quality engineering activities, ensuring compliance, driving process improvements, conducting audits, and mentoring team members.

Design, build, and maintain end-to-end automated test frameworks bridging AWS-hosted web apps and Salesforce. Automate cross-platform user journeys, create resilient Salesforce Lightning UI tests (handling dynamic IDs and Shadow DOM), develop API and integration test suites (webhooks, queues), and integrate tests into Git-based CI/CD pipelines.

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 Senior QA Automation Engineer, you will develop and maintain automated tests for web applications, perform manual testing, validate integrations, and create documentation while analyzing issues in a remote work environment.

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.

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

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.