21 of 21 Permanent Vitest Jobs in England

state management Strong history of working with React and libraries like Material-UI (MUI), React Query/TanStack Query, and React Hook Form (preferred) Experience with testing frameworks like Vitest and Playwright Proficiency with GitHub for source-control Ability to write clean, maintainable, and well-tested code. Experience integrating RESTful APIs Strong problem-solving skills and attention to detail Excellent More ❯

Frontend Engineer with proficiency in React, React Native, Next.js Strong understanding of JavaScript, TypeScript, HTML, and CSS Familiarity with RESTful APIs and GraphQL Experience with testing tools such as Vitest, React Testing Library, and Playwright Knowledge of Continuous Integration and Delivery techniques Experience with Cloud Platforms, ideally AWS Advocate of automation at all levels, including unit and performance testing Code More ❯

and Azure Solid understanding of frontend frameworks (React preferred), state management , and component-based architecture Experience with SQL , Git , Postman , JSON/XML , and automated testing frameworks (e.g., Jest, Vitest) Familiarity with CI/CD tools , source control , and agile development methodologies Bonus: Experience with Umbraco , SharePoint , or AI/ML integration Strong problem-solving skills, attention to detail, and More ❯

expertise in development tools such as Webpack and Vite for efficient build and bundling workflows. Skilled in implementing robust testing strategies using frameworks like Playwright, React Testing Library, and Vitest to ensure high-quality, maintainable code. Desirable skills: Experience in Investment Banking or finance Experience with GraphQL Strong understanding of modern JavaScript tooling Experience publishing npm libraries Experience with micro More ❯

knowledge. Strong React knowledge. Experience with state management libraries, such as Zustand. Ability to write clean, maintainable and testable code. Experience with writing automated tests and testing frameworks like Vitest and Playwright. Experience with designing clean APIs using architectural styles like REST and GraphQL. Ability to implement beautiful styles using CSS. Ability to take ownership of work independently. Good communication More ❯

Familiarity with RESTful APIs. Hands-on experience with bundlers such as RSPack or Vite. Knowledge of state management tools like zustand or valtio. Experience with testing frameworks such as Vitest, Jest, or React Testing Library. Proficiency with version control systems like Git. Understanding of CI/CD pipelines and deployment practices. Awareness of web accessibility standards and performance optimisation techniques. More ❯

TypeScript, Node.js, and modern frameworks like Next.js. You use a utility-first framework like Tailwind CSS to create clean, maintainable styles. You've used tools like React Testing Library, Vitest, and Playwright to write reliable, maintainable tests for front-end applications. You're well-versed in software architecture and API design, and capable of delivering secure, scalable, and high-performance More ❯

environment. Strong front-end skills with?TypeScript?(JavaScript knowledge also valued) Familiarity with?REST APIs Solid understanding version controlsuch as Git. Experience with testing React applications using JEST or vitest Team-oriented mindset with strong communication skills Self-motivated and proactive in your approach to learning and delivery Would be great, but not essential if you also had: Experience working More ❯

Native Proficiency in TypeScript (JavaScript also valued) Experience consuming REST APIs in mobile apps Solid understanding version controlsuch as Git Solid experience with testing React applications using JEST and vitest Strong collaboration and communication skills A proactive, self-directed approach to engineering challenges Would be great, but not essential if you also had: Experience in native mobile development for either More ❯

our types! We also use d3, Formik, and Zustand to build out the products, and styled-components and tailwind to make them pretty. And then we test them with vitest, jest, and playwright. If you're also interested in the backends, here's some other tech we use: PHP, NodeJS, Docker, Elastic, Redis, and all the services offered by AWS. More ❯

software issues, including network-level troubleshooting. Collaborate closely with cross-functional teams including firmware, support, and production. Champion strong testing practices across the stack using tools like Jest and Vitest . What We're Looking For Expert-level experience in backend development with TypeScript . Solid understanding of AWS cloud infrastructure and infrastructure-as-code (IaC), ideally using Terraform . More ❯

our types! We also use d3, Formik, and Zustand to build out the products, and styled-components and tailwind to make them pretty. And then we test them with vitest, jest, and playwright. If you're also interested in the backends, here's some other tech we use: PHP, NodeJS, Docker, Elastic, Redis, and all the services offered by AWS. More ❯

and back-end components Proficient in use of HTML5, CSS/SCSS, and modern JavaScript/TypeScript standards Experience writing and maintaining unit tests for both Vue (e.g., using Vitest, Jest) and C# (.NET using xUnit, NUnit or MSTest) Possess a positive approach to problem solving, with a process driven method to approach design solutions and a keen eye for More ❯

best practices and creating great user experiences Strong knowledge of modern build tools, frameworks, and deployment processes Extensive experience with testing frameworks for both frontend and backend (Jest/Vitest, React Testing Library, Cypress, xUnit, or similar) Significant familiarity with CI/CD pipelines and cloud-based deployment (experience with Azure would be advantageous) Experience with containerisation and orchestration technologies More ❯

across our app ecosystem. Guide and mentor junior developers, providing technical direction and support. Support and advocate for test automation across the mobile stack using tools like Jest and Vitest . What We're Looking For Expert-level experience building cross-platform mobile apps with React Native and TypeScript . Solid understanding of Git , version control, and CI/CD More ❯

passion and drive, particularly ensuring your team is happy and motivated Skills Typescript React Git Jest NPM Documentation Following and evolving patterns Beneficial: AWS S3, Cloudfront, Lambda AWS CLI vitest rollup vite Key Responsibilities: What You'll Do: Taking responsibility for the architecture and technical delivery of the products and solutions in your team Managing a (currently home-based) agile More ❯

passion and drive, particularly ensuring your team is happy and motivated Skills Typescript React Git Jest NPM Documentation Following and evolving patterns Beneficial: AWS S3, Cloudfront, Lambda AWS CLI vitest rollup vite Key Responsibilities: What You'll Do: Taking responsibility for the architecture and technical delivery of the products and solutions in your team Managing a (currently home-based) agile More ❯

strong understanding of React Experienced with NextJS, preferably app router You consider unit testing a key part of software delivery You have used testing libraries such as Jest or Vitest and React Testing Library A drive to collaborate with the team and share your opinions to push our technology forwards Skills that are a nice to have TailwindCSS Experience building More ❯

_ga - Expires after 2 years (first-party cookie) _ga_nnnnnnnnnn - Expires after 2 years (first-party cookie) Hours: 35 hours per week, Hybrid working - 2 days a week in the office Closing Date: Thu, 31 Jul 2025 We're looking More ❯

You'll be working on a range of exciting projects, including websites and digital experiences for startups and household names alike. As part of a cross-functional team, you'll be developing from the ground up, implementing UI and functionality More ❯

We Rely Heavily On The Following Tools And Technologies React & Typescript to write our frontend application code Playwright for our end-to-end tests Sentry for metrics & monitoring Jest , Vitest & React Testing Library for our unit tests AWS for our production and staging environments We'd love to hear from you if You have 5+ years' experience developing robust frontends … TypeScript, semantic HTML & CSS A deep understanding of ReactJS & Redux You have experience using WebRTC Experience using Sentry or similar app monitoring/telemetry platform Experience with Jest or Vitest testing frameworks You have an ability to see through conflicting or unclear priorities. Prioritise them, focus and act decisively with the overall context of the business in mind. You're More ❯