11 of 11 API Testing Jobs in London

API Automation Engineer Hybrid Working – London – 2 days a week on site. Financial Services Lorien's leading banking client is looking for a skilled API Automation Engineer with strong experience of with Rest API testing in Java to join our London-based team. The ideal candidate … London. This role will be Via Umbrella. Working in a Hybrid Model of 2 days a week on site. Key Skills and Experience Rest API automation testing in Java Java library and framework: Lombok, Spring Boot Stub testing experience: yaml, wiremock or Mockito, SOAP API testing ...

Employment Type: Full Time A global technology organisation is seeking a Quality Engineering Transformation Leader to drive enterprise-scale QE modernisation, automation strategy and testing transformation across a complex multi-platform environment. This is a senior leadership role responsible for shaping the Quality Engineering strategy, test architecture, DevOps-aligned … testing practices and automation frameworks across large delivery programmes. The successful candidate will work closely with CIO, CTO and senior engineering leadership, influencing the future of data-driven quality engineering and continuous testing. Key Responsibilities Lead enterprise QE transformation and modernisation initiatives. Define and implement automation-first testing ...

application security programme across the software development lifecycle. A key part of the role will involve leveraging offensive security insights (including penetration testing and red team methodologies) to improve secure design, testing coverage, and remediation prioritisation. Key Responsibilities Lead and evolve the organisation's application security strategy across … based environments) Design and build secure-by-default platforms and automation to reduce friction in delivery Integrate and enhance security tooling (SAST, DAST, SCA, API security, IaC scanning) Translate penetration testing and red team findings into actionable engineering improvements Partner with engineering teams to improve secure design, vulnerability ...

they're building a QA function from the ground up rather than inheriting someone else's mess. This isn't a hands-on testing role. It's a leadership position where you define the automation strategy, set the standards, and coach engineers across the business to own quality … their own teams. Think quality gates in GitHub Actions, a real mandate to explore AI-assisted testing, and a stack that's actually worth working on rather than being a buzzword on a slide. 🔧 The tooling you'll be working with: Playwright (primary browser automation) Maestro (mobile testing ...

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 ...

Required Skills & Experience Strong experience in automation testing using Selenium/Playwright/Cypress Proficiency in programming languages such as Java, Python, or C# Experience with API testing (Postman, REST Assured, or similar) Knowledge of testing frameworks (TestNG, JUnit, Pytest, etc.) Familiarity with CI/ ...

strategy across products Establish quality benchmarks, KPIs, and reporting dashboards Introduce and enforce industry-standard QA processes (ISTQB, TMMi, etc.) Drive shift-left testing and early defect detection practices Automation & Tools Design and implement test automation frameworks (UI, API, performance) Evaluate and standardize QA tools and frameworks Ensure … integration Process Improvement Introducing best practices in test planning, execution, and reporting Improve defect leakage, test coverage, and release quality metrics Implement risk-based testing approaches Collaboration Work closely with Product Owners, Architects, and Development Leads Integrate QA into Agile and DevOps workflows Drive quality ownership across teams Mentorship ...

just encouraged but expected. ROLES AND RESPONSIBILITIES: The QA Engineer will: • Build automated tests for web applications using modern frameworks. • Create robust API and back end test coverage across microservices. • Use AI tools to accelerate code generation, debugging and synthetic data creation. • Strengthen regression suites and supporting testing … participating in sprint ceremonies. YOUR SKILLS AND EXPERIENCE: The ideal candidate will have the following skills and experience: • Strong commercial experience in automation testing, ideally across both UI and API. • Proficiency in Java or Kotlin, with the ability to design scalable automation frameworks. • Confident working with web technologies such ...

less that 28 days outside of the UK Role purpose/summary Skilled QA automation Engineer to design, build and execute selenium-based load-testing scripts to validate PowerBI Fabric capacity and Visualisation performance, scalability, and reliability and develop regression test scripts. The role involves modelling user behaviour … Refresh events Create parameterized and data-driven scripts to vary user patterns, concurrency levels, and execution timing. Develop regression test script pack. Performance & Capacity Testing Design and execute load, stress and endurance tests specifically targeting PowerBI Fabric capacity limits. Capture metrics such as response times, resource consumption, and capacity ...

bank to assists them in hiring a Java focussed Test Automation Engineer In this role, you’ll be contributing to the transformation of testing using quality processes, tools, and methodologies, significantly improving control, accuracy and integrity. It’s a chance to work with colleagues at multiple levels, and with … platform and feature teams, to build in quality as an integral part of all activities. We’re looking for someone with experience of automated testing, particularly from an Agile development or CI/CD environment. You’ll be an innovative thinker who can identify opportunities and design solutions, coupled ...

ideal for someone who is passionate about delivering high quality software, working day-to-day with engineers and cross-functional teams, and improving testing processes. This role is execution focused and your work will help ensure that our tools are as reliable as they are innovative. Why this role … quality end-to-end - making sure features are well-defined, well-tested, and genuinely ready for customers. What you’llbe doing: Quality, Testing & Release Confidence You’lllook to own the quality signal for product releases, working closely with Product and Engineering to ensure new features meet agreed standards before ...