multiple clients or projects. This part-time freelance role is ideal for a proactive, confident professional who brings a breadth of knowledge and adaptability to design and execute complex testing strategies. You'll work in a fast-paced, multi-environment setup and manage your workload independently. Key Responsibilities Design, develop, and maintain automated test suites using tools like Playwright … or Cypress (E2E), Jest/Vitest (unit), and Postman (API). Execute thorough manual exploratory testing , integration , and load testing using tools such as JMeter . Translate diverse client requirements into actionable, comprehensive test plans covering functional , regression , localization , geofencing , timezone , and performance . Set up and manage test environments using Docker and integrate with CI/CD … services (e.g., payment gateways , booking APIs ). Use tools such as ADB , Xcode , and browser dev tools for in-depth debugging. Required Skills and Experience Extensive QA experience across web and mobile platforms in freelance or agency settings . Strong knowledge of automated and manual testing , API testing , and integration best practices. Proficiency in JavaScript , Python , or More ❯
Manchester, Lancashire, England, United Kingdom Hybrid / WFH Options
Lorien
in the office. Responsibilities: Analyse requirements documents to ensure clear understanding of business and technical specifications. Develop test plans and test scripts to agreed standards. Perform functional and regression testing on software projects. Accurately report and manage defects using Jira. Create and maintain product knowledge documentation. Provide support for functional queries following software releases. Contribute to the testing strategy and planning for Sportsbook projects, working with senior testers. Essential Skills and Experience: Proven experience in commercial software testing, including API, Database, and web testing. Demonstrated ability to produce comprehensive test documentation (test plans, test scripts, defect reports). Strong understanding of the Software Development Lifecycle. Ability to manage tasks under pressure and meet deadlines. Experience More ❯
Wantage, Oxfordshire, United Kingdom Hybrid / WFH Options
Airbox Systems Limited
smoothly. That is where you come in. We need a skilled QA Engineer to work with our Development Team on ensuring they are just that. What you'll do: Testing Development team code and products, documenting issues into a database and assigning appropriately to the development team, seeing through to resolution. Producing high quality bug reports covering description, accurate … reproduction steps and severity. Test different phases of our software ensuring that it is release ready, filing detailed bugs as required. Work with Product Managers on testing new features and flows being released. Writing and executing test plans. Executing new and regression tests. Maintain good rapport with Developers to stay on top of any incoming changes that could affect … sponsorship. Previous experience as a QA Engineer, both with manual and automation experience. Strong knowledge of software QA methodologies, tools and processes. Experience and a strong understanding of the testing position within SCRUM/Agile continuous delivery environments. Experience with API testing. Previous experience with iOS automation testing. A methodical and analytical mindset. Excellent organisation skills and attention to More ❯
Your mission We are seeking a skilled and versatile QA Engineer to join our team and help ensure the highest quality for our products, including mobile, web and SDK. As part of a growing team, you'll play a key role in developing and maintaining both manual and automated testing strategies across different projects, enabling efficient and reliable … releases. This role requires a candidate with a balanced skill set, capable of performing both manual and automation testing and contributing to optimize and maintain our testing processes. Prior experience with mobile, backend and webtesting are beneficial. What will you do? Develop, implement, and maintain testing strategies and protocols for current and future products. … Perform manual testing to catch issues early and ensure comprehensive end-to-end testing coverage. Contribute to and maintain automation frameworks, identifying areas for improvement and automation opportunities. Work collaboratively with developers and QA leads to ensure seamless integration of testing protocols. Stay updated on industry best practices and emerging trends in manual and automated testing. Test More ❯
London, England, United Kingdom Hybrid / WFH Options
Interactive Brokers
an opportunity to develop performant and scalable SPAs for our many brokerage platforms. You will collaborate closely with other engineers, product managers, and our design team to deliver brokerage web app applications to our diverse client base of over 2 million users. Role Responsibilities: Work on brokerage projects as an Engineer at interactiveadvisors.com (Central London, UK). Design and … build scalable web applications within the VueJs ecosystem (VueJs, Vuex, Pinia, Vite, Cypress, webpack). Own and build high-traffic applications with a focus on speed and user experience. Collaborate with colleagues to ideate, plan, and organize large-scale projects. Contribute to our company-wide Vue UI Component Library. Set direction and partner with other front-end engineers to … implement new technologies. Work with a team of intelligent, intense, and fast-moving co-workers. Experience: 3+ years of commercial software development experience with an emphasis on single-page web app development. Hands-on experience with at least one JavaScript framework - React.js/Vue.js/Angular.js (we use Vue.js and Angular.js). HTML, CSS (including CSS pre-processors), JavaScript More ❯
London, England, United Kingdom Hybrid / WFH Options
Gismart
We provide exciting career opportunities, a supportive workplace culture, and the chance to contribute to a team that is making a tangible impact. Requirements Minimum 2 years experience in webtesting (full cycle) Good understanding of software development processes Solid understanding of Agile methodology principles Estimate and prioritize testing activities Experience with client-server testing Experience … with API testing (Postman) Knowledge of data analysis using SQL queries and related tools Nice to haves Mobile testing experience (web or native apps) Working knowledge of Jenkins, Firebase and Swagger tools Knowledge of sniffer tools (Charles, Fiddler) Responsibilities Manual testing of the web platform (FE side) Analysis of requirements and creation of test documentation More ❯
Leeds, England, United Kingdom Hybrid / WFH Options
Radar Healthcare
its ecosystem and best practices. Solid understanding of modern JavaScript, TypeScript, and front-end tooling (e.g., Webpack, Babel...). A proven track record of working on and maintaining complex web applications Strong knowledge of best practices for implementing and managing i18n, l10n and a11y in React projects. Best practices in unit testing and automated webtestingMore ❯
London, England, United Kingdom Hybrid / WFH Options
Global Relay
secure then you’ll fit in around here. Your responsibilities: Work as a part of an agile development team to design and implement a fully-interactive, single-page style web application Write unit and integration tests for your code Collaborate with interaction designers to translate mock-ups into a functioning web application that is accessible and responsive with … product owners on user story generation and refinement Participate in knowledge sharing activities with colleagues About you: Minimum 3 years of JavaScript development experience in an Agile environment, building web applications utilizing web service APIs Strong knowledge of React.js, JavaScript, HTML 5, CSS 3, and related web technologies like Sass/Less, AJAX, and JSON Experience writing … functional tests using webtesting frameworks Experience with any of the following is an asset: JavaScript frameworks, such as ExtJS, Angular, or Vue.js Linux Selenium Unit testing with Mocha or Jasmine/Jest Enterprise application development What you can expect: At Global Relay, there’s no ceiling to what you can achieve. It’s the land of More ❯