8 of 8 Vitest Jobs in London

loading states Performance – bundle optimisation, code splitting, rendering strategies Accessibility & UX – semantic HTML, responsive design, usability best practice Testing – unit and component testing (Jest, Vitest, Testing Library, Cypress/Playwright) Version control – Git workflows, PR reviews, and collaboration Back-end Experience with some of the following, or a strong willingness ...

GraphQL/REST APIs Knowledge of the web platform, including HTML, CSS and Browser APIs Experience with the testing pyramid and tools such as Vitest, Jest, Playwright Understanding of CI/CD practices and deployment pipelines Proficient in using version control systems (Git) Nice to have: Experience with design systems ...

React Experience with design systems, component libraries and Storybook Familiarity with state management libraries Experience with the testing pyramid and tools such as Vitest, Jest, Playwright Strong understanding of non-functional requirements (e.g. Accessibility, Security & Performance) Understanding of CI/CD practices and deployment pipelines Proficient with Git version control ...

experience with React and TypeScript . Experience using Apollo GraphQL . Experience with NextJS or Gatsby . Experience with unit testing , preferably Jest or Vitest . Strong software design, problem-solving, and debugging skills. Good communication and interpersonal skills. Familiarity with CI/CD pipelines and modern DevOps practices. Desirable ...

modules and bridging in React Native Familiarity with state management libraries (Zustand, Redux, MobX etc.) Experience with the testing pyramid and tools such as Vitest, Jest, React Native Testing Library, Maestro, Detox Nice to have: Experience with iOS (Objective-C, Swift) or Android (Java, Kotlin) native development. Experience with mobile ...

applications using React Strong experience with Next.js Hands-on experience using Apollo GraphQL Solid understanding of unit testing , ideally using Jest and/or Vitest Excellent software design, problem-solving, and debugging skills Strong communication and interpersonal skills, with the ability to work effectively in cross-functional teams Familiarity with ...

Regression and smoke testing User journey and edge-case testing Automation & JS-based tools Playwright or Cypress for end-to-end testing Jest or Vitest for unit or integration tests Testing Library for component-level testing Supporting tools API testing (Postman, Insomnia) Bug tracking and workflow tools (Notion, Linear, GitHub ...

Query . Incorporate Vercel AI SDK UI components to enhance chatbot functionality and user experience. Ensure code quality through unit and integration testing with Vitest and React Testing Library . Participate in code reviews and contribute to architectural decisions. Optimize performance and troubleshoot issues across various browsers and devices. What … component-based architecture and state management. Hands-on experience in Python service-side development and APIs (e.g., FastAPI ). Familiarity with testing frameworks ( Vitest , React Testing Library ) and pytest for Python. Experience with CI/CD tools and collaborative development workflows using Git/Bitbucket . Non-Technical Skills: Self ...