26 to 50 of 50 API Testing Jobs in London

London Travel We're seeking an experienced Senior Mobile Automation Engineer to join a large-scale digital programme, helping shape and deliver modern mobile testing practices across multiple product teams. Working closely with senior engineering and quality stakeholders, you'll play a key role in driving testing excellence … defining automation strategy, and ensuring high-quality mobile experiences across both iOS and Android platforms. Key Responsibilities Define and implement mobile automation testing strategies. Build, maintain and improve scalable automation frameworks. Drive quality engineering best practice across multiple teams. Deliver automated end-to-end, integration, regression and API ...

quality, performance, and reliability of complex banking applications. The role supports digital transformation by embedding quality early in the SDLC through test automation, API & UI validation, TDD practices, and scaled agile delivery models. The position plays a critical role in reducing risk, improving release confidence, and enabling continuous delivery … across enterprise platforms. Basic/Essential Qualifications 10+ years of experience in software testing and test automation Extensive experience in banking or regulated enterprise environments Strong understanding of automation frameworks and test design patterns Experience working with cross‐functional teams and distributed delivery models Key Responsibilities/Accountabilities Design ...

APIs using Java and Spring Boot. Designing scalable systems and well‐defined service interfaces, with a strong understanding of modern software architecture and testing practices. Writing clean, high‐quality code that is easy to test, maintain and extend across both front‐end and back‐end services. Driving quality through … excellent automated testing practices, including API testing to enable continuous deployment. Understanding how modern web applications work end to end, from browser HTTP requests and API calls through to service‐layer logic, data handling and page rendering. Using AI tools and practices to enhance product features ...

CTRM) platform are reliable, accurate and fit for business use. Working as part of an Agile Scrum team, you’ll combine hands-on manual testing with test automation, ideally using Cypress, and contribute throughout the full software development lifecycle — from reviewing requirements and acceptance criteria through to regression testing … verify fixes. Participate in Scrum ceremonies including refinement, sprint planning, daily stand-ups, reviews and retrospectives. Skills & Experience Essential: Practical experience in a software testing or Quality Assurance role within a structured SDLC. Strong manual testing experience, including test analysis, test case design, execution, exploratory and regression testing. ...

migration, business processes and user acceptance testing. Responsibilities Create and maintain test plans, scripts and documentation Execute functional, integration, regression and end-to-end testing Validate data migration, data quality and reconciliation Manage defects and work with developers to verify fixes Support UAT, release readiness and go-live activities … Experience required Previous QA experience on a business-system implementation Strong manual, integration and regression testing skills Experience testing web applications and business-critical systems Data migration, validation and reconciliation experience Strong communication, documentation and stakeholder-management skills Desirable Experience testing CRM, ERP, MIS or finance systems ...

highly skilled Lead Software Development Test Engineer (SDET) with expertise in test automation framework development. This role requires a strong technical foundation in automation, testing, and CI/CD practices as well as excellent communication and client engagement skills. As a Lead SDET, you will not only guide … customer stakeholders to: Understand their business and technical challenges Recommend and implement quality engineering strategies Propose and drive adoption of modern technologies, frameworks, and testing methodologies Help shape test automation roadmaps and best practices tailored to the client's environment The ideal candidate should have experience working ...

Test Lead (with Retail Banking) Location : Northampton About the Job you are considering: The End-to-End (E2E) Test Lead is responsible for leading testing activities across complex banking programs, ensuring high-quality delivery through effective test planning, execution, automation, defect management, and stakeholder collaboration. The role drives testing strategy, risk management, and continuous improvement while leading testing teams across multiple applications and platforms. Hybrid working : The places that you work from day to day will vary according to your role, your needs, and those of the business; it will be a blend of Company offices, client ...

continuously evolve Fourth’s AI-driven global QA strategy and roadmap, aligned with the Product and Technology roadmaps, to shape the strategic testing needs of the business.Establish the QA tools, frameworks, standards, and ways of working across our global engineering organisation to achieve our technology goals.Drive the unification … continuous improvement of testing processes and practices across delivery teams, partnering directly with Software Engineering Managers and Product Managers.Act as the principal point of escalation for complex testing and quality challenges across global Engineering teams, marshalling subject matter expertise to resolve them.Champion modern testing technologies, frameworks ...

continuously evolve Fourth’s AI-driven global QA strategy and roadmap, aligned with the Product and Technology roadmaps, to shape the strategic testing needs of the business. Establish the QA tools, frameworks, standards, and ways of working across our global engineering organisation to achieve our technology goals. Drive … unification and continuous improvement of testing processes and practices across delivery teams, partnering directly with Software Engineering Managers and Product Managers. Act as the principal point of escalation for complex testing and quality challenges across global Engineering teams, marshalling subject matter expertise to resolve them. Champion modern testing ...

Tester to support the quality assurance of web-based systems and digital products. This role provides a strong foundation for a career in software testing and quality assurance. The Role You will work alongside developers, product teams and senior testers to test new features, identify defects and help ensure … evidence. Review requirements and user stories to identify test scenarios. Work with developers to investigate and resolve software issues. Contribute to continuous improvement of testing processes and documentation. About You Strong attention to detail and a methodical approach to work. Genuine interest in software quality, testing and technology. ...

month minimum . Hybrid working - 3/4 days per week on site. Role The QA Analyst will support day-to-day QA and testing activities across mobile, web and API applications. Execute predominantly manual testing against development tickets and support the wider development lifecycle. Perform functional … regression testing across Android, iOS, web applications and APIs. Support UI/UX testing as part of ongoing application development. Contribute to the testing and onboarding of new functionality. Support the upcoming app relaunch and increased testing requirements resulting from the business's domain expansion. Perform ...

join our team. Working alongside our experienced team of specialists, you’ll be delivering offensive security services including digital footprint reconnaissance, social engineering, penetration testing and vulnerability assessments and more to high profile clients across all industries.The purpose of this role is to deliver our offensive security services including … digital footprint reconnaissance, social engineering, vulnerability assessments, penetration testing, threat modelling, cyber-attack simulation exercises, and more to high profile clients across all industries.You’ll benefit from ongoing coaching, career mentoring, and be supported by our career pathway. You will have an opportunity to continue to develop market leading ...

team you'll be working with:We are seeking an experienced QE Automation Lead to operate as the Test Lead for automated data testing within a complex, multi‐vendor data transformation programme.This test role reports to the QE Lead (Test Director level) and is accountable for the design, execution … maintenance of the automation framework, data testing and overseeing the day‐to‐day management test activities of the Automation Test Engineers (SDETs) across multiple delivery teams in a Data Factory model.The QE Automation Lead will come from a strong hands‐on technical background, with deep experience in test automation ...

cloud native applications using AWS and modern engineering practices.Work closely with DevOps engineers to deliver automated, reliable deployments.Ensure high standards of software quality through testing, code reviews and engineering best practice.Design and implement microservices and event driven solutions.Support production systems, improving performance, resilience and reliability.Mentor developers and provide technical … continuous improvement initiatives.Essential Skills - Senior Software DeveloperStrong commercial experience developing applications using Python.Hands on experience building and consuming REST APIs.Experience using REST Assured for API testing and automation.Commercial experience working with AWS.Strong understanding of DevOps practices and modern software delivery.Experience working with CI/CD pipelines.Experience developing scalable ...

This Role We're hiring a senior full-stack engineer who owns real problems end-to-end and shapes how the team builds, from API design and frontend experience through to backend services, production reliability, and launch. You already use AI as part of how you think, build, test … modernization and migrations. Experience with caching solutions like Memcached or Redis. Experience using project management and documentation tools like Jira and Confluence. Knowledge of API testing tools such as Postman or Bruno. Writing automated tests alongside development with AI tools (Claude Code or equivalent). Perks & Benefits Competitive ...

translate business needs into quality engineering. The role requires hands-on coding in Java, TypeScript, or Python, deep experience with Selenium/WebDriver, API testing with Pact, and strong CI/CD exposure (GitHub #J-18808-Ljbffr ...

leading Cyber Security Consultancy is looking for an experienced Senior Penetration Tester to join its team. You'll deliver end-to-end penetration testing engagements, work directly with clients and contribute to the development of technical capabilities. Key Responsibilities: Deliver penetration tests from scoping through to reporting and client … debrief. Conduct testing across web applications, APIs, infrastructure, networks, cloud and mobile environments. Produce high-quality technical reports and present findings to clients. Support engagement scoping, proposals and client relationships. Research emerging vulnerabilities and develop tools/scripts to enhance testing. Key Requirements: Proven commercial experience within a penetration ...

leading Cyber Security Consultancy is looking for an experienced Senior Penetration Tester to join its team. You'll deliver end-to-end penetration testing engagements, work directly with clients and contribute to the development of technical capabilities. Key Responsibilities: Deliver penetration tests from scoping through to reporting and client … debrief. Conduct testing across web applications, APIs, infrastructure, networks, cloud and mobile environments. Produce high-quality technical reports and present findings to clients. Support engagement scoping, proposals and client relationships. Research emerging vulnerabilities and develop tools/scripts to enhance testing. Key Requirements: Proven commercial experience within a penetration ...

design, implementation, and execution of automated data tests within the enterprise data platform. The ideal candidate will have a strong background in testing the implementation of data solutions on AWS infrastructure and a variety of core and supplementary technologies. This role requires a solid understanding of data engineering, cloud … data tests in line with functional requirements, non-functional requirements and acceptance criteriaValidate data quality dimensions.Implement source-to-target reconciliation, schema validation, and transformation testing in ETL/ELT environmentsCollaborate with cross-functional teams in a multi-vendor environment to understand business requirements and translate them into technical testing ...

Occasional London TravelWe’re seeking an experienced Senior Mobile Automation Engineer to join a large-scale digital programme, helping shape and deliver modern mobile testing practices across multiple product teams.Working closely with senior engineering and quality stakeholders, you’ll play a key role in driving testing excellence, defining … automation strategy, and ensuring high-quality mobile experiences across both iOS and Android platforms.Key ResponsibilitiesDefine and implement mobile automation testing strategies.Build, maintain and improve scalable automation frameworks.Drive quality engineering best practice across multiple teams.Deliver automated end-to-end, integration, regression and API testing.Collaborate with developers, architects, analysts ...

high-quality software and committed to ensuring our clients have the best user experience possible. Testers at Trayport share an unrivaled passion for software testing and love nothing more than voraciously and persistently hunting down and investigating potential issues, helping to make our software the best it can be.Our … testers use a combination of test automation, technical testing, and exploratory testing to build quality into our software, working closely with the rest of their team and coaching others on how to write better software. For us, teamwork is everything. We listen to each other, adapt, evolve ...

chosen to gradually phase out these older frameworks. We use open source JavaScript libraries extensively, most notably Lodash, Plotly Charts and React Virtualized.Postman covers API level testing. Full stack integration testing is handled by a proprietary test rig that utilises Selenium. Manual feature testing … custom mission critical services and applications using the .NET Framework and SQL technologies.• Take a project through the entire lifecycle of analysis, design, coding, testing, implementation and support.• Design, build, and maintain efficient, reusable, and reliable .net and React code.Full Stack Developers MUST have:2:1 Computing Science degree ...

they move through a fast paced build phase, they are seeking an experienced Programme Test Lead to take ownership of the end to end testing strategy, assurance framework, and quality governance across a SaaS led banking platform. Whilst this role will be strategic, they are still seeking someone hands … with testing and tooling. Key Requirements Experience working within banking, financial services or regulated environments. Strong experience with mobile application testing Experience with integration and API testing. Experience implementing or scaling AI enabled testing approaches. Understanding of test automation frameworks, CI/CD and quality engineering ...

technical side of information technology and software developmentWorking knowledge of Ubuntu or other Linux distributionsUse of defect tracking tools (Jira, Xray)Good understanding of API testingBasic networking knowledgeBasic understanding of windows infrastructure such as Active directory, Certificate Services.Comfortable using command line toolsDebug/troubleshooting skillsExcellent communication, both written … verbalSTEM degree or similar equivalent qualificationsDesirableWorking knowledge of docker and KubernetesKnowledge of web securityBasic understanding of API automation using pythonRole will be subject to an employment screening process and will require security clearance.Job SummaryJob number: P-100021Date posted : 2026-07-14Profession: EngineeringEmployment type: Full TimeExperience: Essential Minimum three ...

maintain small-scale applications and end-user solutions. Troubleshoot issues and enhance existing systems. Systems & Technical Support Perform SQL-based data analysis and support API testing. Work with infrastructure, desktop, and network teams on technical implementations. Support software releases, incidents, and production issues, including occasional out-of-hours support. … years' experience in Business Analysis, Application Support, Software Development, or a related technology role. Strong Python and SQL skills. Experience with system analysis, testing, troubleshooting, and process improvement. Strong problem-solving and stakeholder management capabilities. Ability to work effectively under pressure and manage multiple priorities. Degree educated or equivalent ...