4 of 4 API Testing Jobs in Central 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 ...

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 ...

client and the role, the selected candidate MUST HAVE ACTIVE SC Clearance*** The ideal candidate will have strong experience with Provar Automation Testing Key Responsibilities Test Automation Development Design, build, and maintain Provar automation test scripts for Salesforce applications and integrations. Develop scalable and reusable testing frameworks using … Provar best practices. Automate regression, functional, and end-to-end tests to improve testing efficiency. Test Planning & Execution Review requirements, user stories, and acceptance criteria to identify test scenarios. Execute automated and manual tests where required to ensure high-quality releases. Perform debugging, root cause analysis, and defect reporting ...

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 ...