226 to 250 of 337 Permanent API Testing Jobs

Key Responsibilities: Conduct performance testing across UI, APIs , and messaging systems to ensure application stability and scalability. Execute and manage tests for Single Page Applications (SPAs) built with Angular . Identify, analyze, and troubleshoot performance bottlenecks and provide tuning recommendations. Work with developers, DevOps, and QA teams to integrate performance tests into Azure/Jenkins pipelines . Utilize Postman … for API testing and scripting. Required Skills: Strong experience with LoadRunner Suite for load and stress testing. Proficiency with Azure DevOps and Jenkins CI/CD pipelines . Experience using Postman for functional and performance API testing. Hands-on experience diagnosing and resolving performance issues across web and backend systems. Nice to Have: Experience working with technologies More ❯

basis for an initial 6 months, with a potential to extend further. About the Role Working within the Borders business unit, The ideal candidate will have experience in performance testing of UI, APIs, and messaging systems, with strong hands-on expertise in LoadRunner Suite, Azure/Jenkins pipelines, and Postman. This role will focus on ensuring the performance, scalability … applications. Key Duties: • Design and execute performance test plans for UI, APIs, and messaging systems • Use LoadRunner Suite and other tools to simulate load and analyse performance • Run performance testing pipelines using Azure DevOps or Jenkins • Use Postman for API validation as part of performance testing flows • Identify bottlenecks and diagnose performance issues in complex systems • Collaborate … analysis and improvement suggestions What we are looking for Required Skills and Experience: • Strong experience with LoadRunner Suite • Proficiency with Azure DevOps or Jenkins pipelines • Experience using Postman for API testing • Solid understanding of performance testing across UI, APIs, and messaging systems • Hands-on experience with Single Page Applications (Angular) • Skilled in performance issue diagnosis and troubleshooting More ❯

basis for an initial 6 months, with a potential to extend further. About the Role Working within the Borders business unit, The ideal candidate will have experience in performance testing of UI, APIs, and messaging systems, with strong hands-on expertise in LoadRunner Suite, Azure/Jenkins pipelines, and Postman. This role will focus on ensuring the performance, scalability … applications. Key Duties: • Design and execute performance test plans for UI, APIs, and messaging systems • Use LoadRunner Suite and other tools to simulate load and analyse performance • Run performance testing pipelines using Azure DevOps or Jenkins • Use Postman for API validation as part of performance testing flows • Identify bottlenecks and diagnose performance issues in complex systems • Collaborate … analysis and improvement suggestions What we are looking for Required Skills and Experience: • Strong experience with LoadRunner Suite • Proficiency with Azure DevOps or Jenkins pipelines • Experience using Postman for API testing • Solid understanding of performance testing across UI, APIs, and messaging systems • Hands-on experience with Single Page Applications (Angular) • Skilled in performance issue diagnosis and troubleshooting More ❯

Role : Mainframe Test Lead Location : London Work Mode : Hybrid Job Description: The objective of this role is to validate the Test coverage and Testing evidence that the upgrades made to DB2, IMS, MQ Subsystems do not impact the application functionality. In addition to the above, the role requires to identify the application regression test cases associated to the below … subsystems, hence a deep understanding of the Mainframe systems i.e. DB2, IMS, MQ, COBOL, JCL are essential. Key Responsibilities: Lead end-to-end testing efforts for mainframe applications and APIs. Design and implement testing approach, Test plan, and Review Test cases for mainframe systems involving IMS and MQ. Collaborate with development, business, and QA teams to understand requirements … and ensure test coverage. Perform integration testing involving APIs, IMS transactions, and MQ messaging. Automate test cases where applicable and manage test data. Identify, document, and track defects using tools like JIRA or HP ALM. Ensure compliance with quality standards and best practices. Required Skills: Strong experience in mainframe testing (COBOL, JCL, DB2). Hands-on experience with More ❯

re working with a large-scale businesses sector programme, helping to grow a collaborative, engineering-led team at the forefront of digital transformation. If you're passionate about modern testing practices, automation, and working in fast-moving multidisciplinary teams - this is the role for you. What You'll Do: Be part of a collaborative Agile delivery team, working alongside … BAs, and product stakeholders. Own the quality assurance process - from understanding requirements through to delivery. Build and maintain automated test frameworks using modern BDD approaches (Cucumber, Gherkin). Conduct API testing, functional and non-functional testing, and support 3rd-party QA integration. Ensure test coverage across all stages of the SDLC in a Java-based, cloud-hosted … environment. What We're Looking For: 5+ years' experience in testing or quality engineering roles. Hands-on expertise with: Test automation tools (e.g., Cucumber, JUnit) API testing (Postman or similar) Version control systems (e.g., Git) Strong understanding of Agile delivery and test-first principles. Ability to write and implement BDD scenarios (Gherkin) and collaborate with developers on More ❯

Apply for this position Quality management tools (Micro Focus Quality Center, TestDirector, Test Manager, TestLink, SpiraTest, TestRail, HP-ALM (QC)) to organize and manage all phases of the software testing process including planning, running tests, and tracking defects, generating and storing test reports, and interlinking them with the release requirements; Defect tracking tools (BugZilla, Mantis) to track the defects … to the dev team; MS Excel or Test Studio to write large sets of test cases and later import them into TMTs; SQL clients to connect to the database; API testing tools (Postman, SoapUI,) for automated checks. They offer predefined snippets to automate API testing without the need to write code to test the API; Responsibilities · Analyse requirements and prepare a query list. If requirements are incomplete, they need to ask meaningful questions that will yield more information and help perform testing effectively; Write and execute test cases to find system bugs like UI and usability issues, etc. Provide inputs on high-level test scenarios, challenges, risks, resources, test estimates, etc., during test More ❯

and log results in agile test planning tools like qTest, TestRail, or similar platforms. Perform a variety of tests, such as Smoke/Sanity, Functional/Non-Functional, Regression, API, Database, and Performance Testing, in accordance with established test plans or strategies. Investigate and oversee application logs to identify issues along with managing defects meticulously using tools such … quality champion for your area of functional expertise. Support the deployment of all product releases, fix packs, hot fixes, and provide troubleshooting for client issues. Ensure consistent communication of testing milestones and progress by delivering regular and precise updates in a timely manner. Maintain a positive and professional demeanor, demonstrating a strong commitment to achieving organizational goals through dedicated … work ethic. Guide and educate junior QA engineers or trainees on quality assurance practices and product knowledge. Required Skills & Experience : 2-3 years of Quality Assurance experience in testing for Web and Mobile Applications, as well as Web Services, ideally within a SaaS framework. A proven track record in testing GUI and functional user workflows, going beyond basic More ❯

experienced Senior Automated Software Test Engineer to join our esteemed clients team in Huntsville, AL. This role is perfect for a seasoned professional with a strong background in software testing and automation frameworks. If you are passionate about leveraging your skills to drive innovation and excellence, we encourage you to apply today! Position Overview/Responsibilities for the Senior … Automated Software Test Engineer: Design and execute test scripts, plans, and procedures Document expected and actual results of testing procedures Create and update automated test cases or scripts Work closely with our clients team to ensure software quality and efficiency This is a direct hire position Required Skills for Senior Automated Software Test Engineer: Proven experience in designing and … executing test scripts, plans, and procedures Proficiency in automation testing frameworks Experience in creating and updating automated test cases or scripts Top Secret clearance Bachelors degree and 10+ years of experience with software testing, or 14+ years of experience with software testing in lieu of a degree Preferred Skills: Proficiency in Python, JavaScript, or Java Experience with More ❯

quality into everything What you bring: 5+ years' experience in test automation Proficiency in scripting automated tests (e.g., Cypress, Playwright) Strong understanding of software development lifecycle Good grasp of API testing, mocking/stubbing, and CI pipelines Nice-to-haves: Performance or load testing experience 42369MSR INDMANS More ❯

quality into everything What you bring: 5+ years' experience in test automation Proficiency in scripting automated tests (e.g., Cypress, Playwright) Strong understanding of software development lifecycle Good grasp of API testing, mocking/stubbing, and CI pipelines Nice-to-haves: Performance or load testing experience 42369MSR INDMANS More ❯

Responsibilities: • Develop modern frontend components and applications using React and TypeScript • Translate complex FinOps workflows into usable, intuitive interfaces in collaboration with product and backend teams • Design and optimize API interactions using REST and GraphQL • Champion frontend performance through techniques such as code splitting , lazy loading , and caching • Prioritize security , implementing best practices in frontend/backend data flows … Contribute to UI/UX design through feedback, prototyping, and iteration • Maintain high standards in code quality , testing, and CI/CD integration • Stay up to date with modern frontend trends and drive continuous improvement • Contribute to architectural decisions and shape the future of the frontend platform Essential Criteria: • Strong commercial experience building frontend applications with React , TypeScript , JavaScript … Proven ability to create high-performance, responsive, and accessible interfaces for data-rich SaaS platforms • Expertise integrating APIs using REST and/or GraphQL • Experience with frontend build tools, testing frameworks, and CI/CD best practices • Passion for clean UI design, usability, and a user-first development approach • Strong problem-solving skills with the ability to deliver practical More ❯

change management Design, implement, and deploy cloud-native solutions Configure and run Kubernetes clusters on various platforms (on-premise and cloud) Mitigate potential points of failure in frontend and API layers according to client guidelines Ensure reuse of Angular pattern libraries Collaborate with security teams to uphold standards Aim for zero downtime during deployments Develop processes for scaling, capacity … supporting team members' growth through coaching and reviews Hands-on experience with Google Cloud Platform and Microservices Architecture (MSA) Proficiency in Node.js, Angular (preferably Angular 17), REST APIs, and API specifications Experience with testing frameworks, automation tools like Cypress, and API testing Knowledge of security protocols (CSRF, CORS, OAuth 2, OIDC) Understanding of Docker, Kubernetes, CI …/CD pipelines, and databases (SQL/NoSQL) Performance optimization and API management experience The candidate will: Focus on delivering great technology to enhance product development and customer experience Encourage innovation and improve engineering tools and processes Question existing systems and eliminate inefficiencies Promote modern operational patterns and technologies Stay informed on external developments to guide company strategy Exhibit More ❯

identity, nationality (single or dual) or immigration status, employment history going back 3 continuous years, unspent criminal record check (known as Disclosure and Barring Service). Your role IoT Testing ensuring the device connectivity and security. Your skills and experience Candidate should have 5 8 years experience in QA testing role in embedded and IoT products. Understanding embedded … systems, IoT protocols (MQTT, CoAP, HTTP), and cloud integration. Testing hardware, firmware, and performance of IoT devices. Verifying communication protocols (Wi-Fi, Zigbee, Bluetooth) and network coverage. Ensuring secure authentication, data encryption, and penetration testing for IoT devices. Conducting security tests on IoT devices, ensuring data privacy and vulnerability assessments. Verifying data integrity, synchronization, and handling of big … data in IoT systems. Knowledge of writing & automating IoT testing scripts and integrating with CI/CD pipelines (optional). Knowledge of cloud platforms like AWS IoT, Azure IoT for cloud-IoT device integration. Worked in agile teams, understand agile methodologies and proficient in JIRA and defect lifecycle management. Perform manual test execution and API testing for More ❯

at the intersection of people management, process improvement, and software delivery. The Role: As the Software Quality Assurance Team Leader, you'll oversee a skilled team responsible for supporting, testing, and maintaining software applications. You'll work closely with developers, business analysts, and senior stakeholders to ensure applications meet high-quality standards, regulatory requirements, and evolving business needs. Key … disruptions. Manage support workloads and coordinate responses to technical issues across the software suite. Provide hands-on support and troubleshooting expertise to resolve complex application issues. Maintain and monitor testing environments to ensure reliable development and deployment processes. Continuously evaluate software performance, identifying and implementing improvements to enhance user experience. Support software projects and drive timely delivery of application … development lifecycle and QA methodologies. Preferred Skills & Qualifications: Experience in a similar leadership role within IT or software support. Familiarity with tools such as Azure DevOps, SQL, IIS, Postman API testing, and version control systems. Knowledge of mobile testing platforms is a plus Background in software testing frameworks and industry best practices. Exposure to Microsoft-based More ❯

code (e.g. Terraform, Pulumi) CI/CD pipelines (e.g Jenkins, CircleCI, Github Actions, etc.) Effective source-control management using Git Test automation following Test Driven Development practices including unit testing, API testing, and end-to-end testing Working with lean and agile practices (e.g. Kanban, Scrum, etc.) Collaborating in cross-functional teams It’d be amazing More ❯

testability and embed quality early in the development process. Lead cross-functional quality initiatives to improve CI/CD pipelines, observability, and release readiness. Drive performance, load, and resilience testing , especially for latency-sensitive, real-time systems. Mentor other SDETs and developers in automation strategy, debugging, and risk mitigation. Own root cause analysis for complex, system-level issues - using … roles . Advanced proficiency in Python , Java , C# , JavaScript , or Go . Strong experience building and scaling test automation frameworks and developer-focused tools. Deep understanding of distributed systems , API testing , and CI/CD pipelines . Hands-on experience testing AI/ML-powered systems , real-time services , or multi-modal UIs . Track record of More ❯

bonus if you have experience of: Programming and scripting, either in a job role or outside of work, Development of test strategies and creation of test cases, Frontend and API testing, Scale and performance testing, e.g. profiling or benchmarking, Cloud platforms, containerisation and virtualisation, Tooling like Terraform and Kubernetes. However, all experience levels will be considered. We More ❯

analytical, problem-solving, and data-driven insight skills. Knowledge of Identity solutions such as OAuth, OpenID Connect, SAML, and security tokens. Cryptographic knowledge and key management experience. Experience with API testing tools like Postman. Familiarity with Design Thinking and Agile methodologies, with experience in an agile environment. Experience in the payments industry is preferred. Excellent client-facing communication More ❯

SDET to join their team. Key Responsibilities: Lead and manage a small team of SDETs, including recruitment and onboarding Mentor junior and senior SDETs to grow their technical and testing capabilities Drive test automation strategies and team planning for complex software systems Collaborate cross-functionally to document and maintain scalable automation frameworks Advocate Agile best practices throughout the development … lifecycle Provide training sessions on automation tools, frameworks, and testing methodologies Technical Requirements: Strong coding skills in Java Hands-on experience with: Selenium WebDriver for UI automation JMeter for performance testing RESTful APIs testing Agile/Scrum methodologies What You Bring: Proven experience leading/managing small technical teams Strong background in automation testing and test More ❯

Join to apply for the API Test Analyst/Automation Tester role at Experis UK . Get AI-powered advice on this job and more exclusive features. Responsibilities: Under minimal supervision, create automation scripts, estimates, and perform pre- and post-conditioning. Execute automated tests and collate evidence for progress reporting and tracking. Communicate the tests executed, data used, results … and defects to project stakeholders. Job Details: Title: Test Analyst Description: API Testing Location: Northampton Duration: until 31 December 2025 Rate: £280 per day - via Umbrella Role Overview: API Automation Tester Overall Purpose: Create automation scripts using Java, Selenium, JQuery, Cucumber. Set up and execute automated tests, record evidence. Essential Skills/Qualifications: Experience in API test automation using REST Assured, Karate, Selenium, Cucumber with Java. Knowledge of testing lifecycle, techniques, and approaches. Ability to estimate, design test plans, write test scenarios, execute cases, and report bugs. Ability to identify process improvements and write high-quality, reusable test code. Effective communication skills for reporting to stakeholders. Key Accountabilities: Improve testing efficiency and methods. More ❯

Lead Test Engineer (C# Postman API SaaS) WFH to £65k Do you have experience of testing complex C# backend systems combined with technical leadership skills? You could be progressing your career as a Lead Test Engineer, at a scaling tech company. As a Lead Test Engineer you will join an Agile tribe, responsible for complex billing systems. You … Agile ceremonies working in 2 week Sprints, across the full development lifecycle and collaborating with software engineers to guide and influence them to achieve increased levels of quality and testing best practice. WFH Policy: You can work from home on a fulltime basis but must be UK based and happy to meet up with colleagues once a quarter. About … you: You have strong QA testing experience on complex backend systems, both manual and automation You have strong API testing experience, ideally with Postman You have experience of providing technical leadership for test automation You have a good understanding of C#, with basic coding skills and experience of testing backend systems You have experience of working More ❯

Lead QA Engineer (C# Postman API SQL) WFH to £65k Do you have experience of testing complex C# backend systems combined with technical leadership skills? You could be progressing your career as a Lead QA Engineer, at a scaling tech company. As a Lead QA Engineer you will join an Agile tribe, responsible for complex billing systems. You … Agile ceremonies working in 2 week Sprints, across the full development lifecycle and collaborating with software engineers to guide and influence them to achieve increased levels of quality and testing best practice. WFH Policy: You can work from home on a fulltime basis but must be UK based and happy to meet up with colleagues once a quarter. About … you: You have strong QA testing experience on complex backend systems, both manual and automation You have strong API testing experience, ideally with Postman You have experience of providing technical leadership for test automation You have a good understanding of C#, with basic coding skills and experience of testing backend systems You have experience of working More ❯

QA Engineer- Manchester ( 5 DAYS A WEEK ONSITE ) Software Testing/API Testing/Agile/Test Automation It's an exciting time to join us, as we continue to grow! Based in Central Manchester, our office is easily commutable from surrounding areas. You would only need to be in the office once monthly Up to £50k … our industry to work seamlessly together. WHAT WILL YOU BE DOING? Working alongside the technical team, stakeholders and product managers in an agile environment, you will be responsible for testing our industry leading product and software solutions for our vast client base. You will work hand in hand with the QAs/SDETs/Dev team following best test … practices such as BDD and TDD. Ideally you will have experience with automated and API testing, we use tools such as Playwright and Postman. YOU NEED TO HAVE: At least 2 years Testing experience API Testing experience, ideally with Postman More ❯

Automation Test Engineer with at least 4 years API, functional and system integration testing is sought by an innovation house based near Birmingham. With large scale investment in technical innovation this Automation Test Engineer will be joining a dynamic, autonomous team delivering an automated testing environment that will facilitate the organisations commitment to cutting edge automation over … Test Manager to help define a new automated QA process. This Automation Test Engineer based near Sheffield should have most of the following key skills: - Extensive experience writing automated testing scripts - Strong API testing skills using postman - Strong automation testing tool exposure ideally using cucumber - Proven experience testing complex systems - Understanding of the software development … lifecycle - Exposure to testing new features within a product led, tech driven environment - Impeccable communication skills as internal stakeholder management between technical teams will form a large part of this role - A real can-do attitude and a passion for technology in general The benefits for this role include: - Starting salary of up to £60,000 - Flexible, hybrid working More ❯

services and the pubic sector This specific project is supporting a multinational Consumer Goods company who are building a new AI data platform You will be responsible for automated testing of Microsoft Dynamics & Power Platform solutions, as well as writing and executing manual test cases where required too. You will be involved in the maintenance and evolution of frameworks … automation test suites, applying best practice standards to all you do You must have knowledge and exposure to the capabilities of AI, how it can be used to benefit testing and automated testing as well as how to carry out testing of AI solutions and the ability to integrate that into an automation capability Must have experience … in testing one or more of the following: Minimum of 3 years' experience in both manual and automated testing at all levels ISTQB Certification (Foundation or Advanced) Manual and automated testing of Microsoft Dynamics and Power Platform solutions Familiar with test and bug management tools and processes, ideally Azure Dev Ops (ADO) Hands-on experience with API More ❯