10 of 10 Permanent API Testing Jobs in London

regulatory compliance across systems that handle large transaction volumes and business-critical data. The ideal candidate will be hands-on in manual and automated testing, with strong experience in Python, PyTest, and exposure to Cosmos DB. The role also requires close collaboration with developers, product owners, and data engineering … data validation across ETL pipelines, databases, and reporting layers Develop, maintain, and enhance test automation scripts using Python and PyTest Support API testing using tools such as Postman and Python libraries Validate system performance and scalability using performance and load testing tools Ensure systems and data meet ...

from a QA perspective, attend sessions independently raising issues, risks and gaps in requirements. You will be engaged in all areas of the software testing lifecycle from requirements capture, analysis and test case design through automation test case implementation and the delivery of automation test cases, test execution … ongoing maintenance. The Feature teams look to deliver in an effective and efficient manner. You will apply professional experience of QA software testing concepts and processes to input into key strategic decisions in the realm of technology and QA. You may also engage in assessing the existing coverage levels ...

ship works seamlessly — from menus and dietary filters to ordering, delivery, and billing. What you'll be doing Own end-to-end manual testing across customer-facing and internal tools Lead regression testing ahead of releases Test real-world user journeys (ordering food, dietary needs, cut-off times … fast-moving startup environment Clear communicator across technical and non-technical teams A genuine interest in food, hospitality, or building better workplace experiences Testing tools and technologies Experience with some of the following, or a strong willingness to learn: Manual & exploratory testing Regression and smoke testing User ...

standards, async patterns, clean architecture Frameworks – Vue/Nuxt (or React/Next.js), component-based development State management – Vuex, Pinia, or equivalent patterns API integration – REST/JSON, error handling, loading states Performance – bundle optimisation, code splitting, rendering strategies Accessibility & UX – semantic HTML, responsive design, usability best practice Testing – unit and component testing (Jest, Vitest, Testing Library, Cypress/Playwright) Version control – Git workflows, PR reviews, and collaboration Back-end Experience with some of the following, or a strong willingness to learn: Node.js – building scalable, maintainable services APIs – RESTful design (GraphQL a plus), authentication, validation, rate ...

platform for future growth. As we transform our digital products and platforms, we are looking for an experienced QA leader who can oversee testing across complex implementations, integrations, and multi-team environments. We are looking for someone with proven implementation experience to join our Commercial Marketing Enablers (CME) programme … strategy for new CRM and MarTech products, ensuring seamless integration, robust data flows, and consistently reliable delivery. You will lead both onshore and offshore testing teams, while working closely with implementation partners across SaaS platforms to validate configurations, manage quality risks, and ensure end-to-end solutions meet both ...

leading fintech platforms and neobanks. Quality, reliability, and trust are critical in everything we build. As we scale, we’re investing in strengthening our testing and quality assurance function to ensure our products meet the highest standards of performance, security, and usability. Role Description We are looking … hands-on role ideal for someone early in their career who is detail-oriented, analytical, and eager to build strong foundations in software testing within a fast-paced fintech environment. What You’ll Do Execute manual testing across APIs, mobile applications and web platforms to ensure new features ...

hire a QA Automation Engineer to join one of their cross-functional product squads. This is a hands-on role focused on expanding automated testing across a modern microservices platform, helping ensure a high-quality experience for users managing their finances. What you'll do: Build and maintain automated … test suites across backend and UI services Reduce reliance on manual testing within a microservices architecture Work closely with Product Managers and engineers to improve testability Use AI-powered tools to accelerate test creation and data generation Execute regression, smoke, and functional testing Contribute to test documentation ...

support the organisations and vulnerable individuals who depend on them, they are seeking a Quality Engineering Lead to bridge the gap between manual testing and a modern, automated future. This is a high-impact, hands-on leadership role . You won’t just be maintaining an existing framework … tooling (Playwright, Selenium, Cypress, etc.) for a .NET, MVC, and React environment. Framework Building: Build and maintain robust, scalable automated test suites covering UI, API, and integration testing layers. Performance Engineering: Define and implement performance and load testing to ensure the platform meets defined benchmarks. Mentorship: Lead ...

London - UK Only Please Key Responsibilities Support and enhance the organisation's application security testing programme, leveraging approved enterprise tools for SAST, SCA, DAST, API security assessment, and penetration testing activities. Conduct manual analysis and security review activities across web, API, and internal applications to validate … technical stakeholders have clear visibility of risk, progress, and governance alignment. Performance Objectives Effectively run the application security toolset (SAST, SCA, DAST, API testing) within established SDLC and CI/CD processes, ensuring vulnerabilities are accurately identified, triaged, and communicated to engineering teams. Strengthen collaboration with development teams ...

London - UK Only PleaseKey Responsibilities Support and enhance the organisation's application security testing programme, leveraging approved enterprise tools for SAST, SCA, DAST, API security assessment, and penetration testing activities. Conduct manual analysis and security review activities across web, API, and internal applications to validate automated … technical stakeholders have clear visibility of risk, progress, and governance alignment. Performance Objectives Effectively run the application security toolset (SAST, SCA, DAST, API testing) within established SDLC and CI/CD processes, ensuring vulnerabilities are accurately identified, triaged, and communicated to engineering teams. Strengthen collaboration with development teams ...