1 to 25 of 119 Vitest Jobs in the UK

generating or sharing types where practical Testing and quality Write and maintain automated tests across the testing pyramid: unit and component tests (for example Vitest or Jest with React Testing Library) and end‐to‐end tests (for example Playwright) Use API mocking (for example Mock Service Worker) to test components ...

Well‐versed writing, maintaining and reviewing TypeScript code at production Serverless infrastructure and AWS eco system Modern React with hooks, experience writing unit tests (Vitest, RTL) for components Modern CSS styling: Tailwind, CSS Modules, style‐dictionary and design tokens Redux experience is valued but not required - we use React Query ...

TypeScript, JavaScript, HTML and CSS Experience integrating with REST APIs Solid .NET/ASP.NET Core experience Experience with automated testing tools such as Playwright, Vitest, Cypress or Jest Experience using Claude Code or similar AI-assisted development tools Git, CI/CD and Agile delivery experience Desirable Microsoft Azure Bicep ...

Styled Components Material UI (MUI) Radix UI Framer Motion Custom Design Systems APIs & Data GraphQL REST APIs Contentful CMS React Hook Form Zod Testing Vitest Jest Testing Library Playwright Storybook MSW Axe/Pa11y DevOps & Infrastructure AWS Terraform GitLab CI Vercel OpenTelemetry Sentry New Relic Please note: Should your application ...

automated testing Desirable Experience with C# Experience with the Tailwind framework Knowledge of AWS services (e.g., S3, CloudFront, Lambda, API Gateway) Experience of the Vitest testing framework Enterprise or large-scale application experience Personal Attributes Strong critical thinking and proactive problem solving skills Clear and confident communicator, both written ...

pixels. Workflow: Git, Gitflow or trunk-based development, automated CI/CD and Agile/Scrum delivery. Testing: Unit and integration testing using Jest, Vitest or React Testing Library. Desirable but not essential E-commerce: Exposure to e-commerce or Headless Commerce environments. GraphQL: Familiarity with queries, mutations and schemas. ...

development and design systems (e.g. Storybook) REST and GraphQL API integration Build tooling such as Vite or Webpack Automated testing with tools such as Vitest, Jest, Cypress or Playwright Responsive, accessible UI development (WCAG standards) CSS architecture (e.g. Tailwind, SCSS, CSS Modules) Git and modern software development workflows CI/ ...

development and design systems (e.g. Storybook) REST and GraphQL API integration Build tooling such as Vite or Webpack Automated testing with tools such as Vitest, Jest, Cypress or Playwright Responsive, accessible UI development (WCAG standards) CSS architecture (e.g. Tailwind, SCSS, CSS Modules) Git and modern software development workflows CI/ ...

development and design systems (e.g. Storybook) REST and GraphQL API integration Build tooling such as Vite or Webpack Automated testing with tools such as Vitest, Jest, Cypress or Playwright Responsive, accessible UI development (WCAG standards) CSS architecture (e.g. Tailwind, SCSS, CSS Modules) Git and modern software development workflows CI/ ...

development and design systems (e.g. Storybook) REST and GraphQL API integration Build tooling such as Vite or Webpack Automated testing with tools such as Vitest, Jest, Cypress or Playwright Responsive, accessible UI development (WCAG standards) CSS architecture (e.g. Tailwind, SCSS, CSS Modules) Git and modern software development workflows CI/ ...

management and modern React patterns Commercial experience building and consuming REST APIs Working knowledge of backend technologies (Node.js, Ruby) Solid understanding of frontend testing (Vitest, Jest) Understanding of clean code within both OOP and FP Experience with PostgreSQL and SQL optimization Proficiency with Git and modern CI/CD practices ...

FastAPI, Polars, LangChain Frontend: React (TanStack Query/React Router/react-hook-form + Zod), TypeScript, nx.dev, Tailwind CSS/shadcn/ui, Vitest/Playwright/MSW, Vite, Recharts Platform: Azure, Azure DevOps (CI/CD), Kubernetes, Docker, cloud storage, messaging and events, Git, SonarQube ...

quickly get up to speed on) our stack: React Native/Expo, Railway, GitHub (incl. CI and end-to-end testing), Playwright, Vite/Vitest, Google Cloud, AWS, Twilio, and Stripe Eligible to work in the United Kingdom Nice to Have: TanStack Start/Router experience A passion for music ...

reliability of our entire system Our stack Infrastructure: AWS, Terraform Frontend: Vercel, NextJS, React/Redux, Testcafe (or similar, Cypress, Playwright) Backend: TypeScript, Vitest, TypeORM, Python, FastAPI, SQLAlchemy, pytest, Docker Compose Experience and Skills Experience as a full stack engineer An end-to-end systems-mindset; we are building ...

state, i18next for multi-language support (FR/EN/ES), Sentry for monitoring, Mixpanel for analytics, GrowthBook for feature flagging. Testing with Vitest/Playwright, linting/formatting with Biome. Mobile : a native iOS app (Swift) dedicated to multi-screen casting in our rooms, with GitHub Actions CI/ ...

builder : Cursor, v0 , Claude Code (and friends) are daily drivers for rapid prototyping and refactors. React + TypeScript mastery: component design, hooks, performance, testing (Vitest/Jest, Playwright). FastAPI expertise: async patterns, Pydantic schemas, pagination, auth (OAuth2/OIDC), rate‐limits, background jobs. Elasticsearch fluency: mappings/analyzers (ngrams ...

APIs and back-end services. A working knowledge of SQL and relational data modelling. Experience writing and maintaining unit, integration, and functional tests using Vitest or similar. An AI-first mindset - genuine enthusiasm for using generative AI to supercharge development, including designing and maintaining UI. A self-starter, able ...

CloudFormation or Terraform where customer environments require them Build and maintain CI/CD pipelines (GitHub Actions) and automated test suites: Jest/Vitest unit tests, Playwright E2E and API tests, and integration tests against live Connect instances Follow phased rollout patterns for production contact centers where downtime is measured ...

HTML5 and CSS3, including responsive design, accessibility and cross-browser compatibility Experience with modern front-end tooling: build systems (Vite, rollup), testing frameworks (Vitest, Playwright) and CI/CD pipelines Familiarity with AI concepts and tooling — including AI-assisted development, LLM integration in web applications; practical experience is a strong ...

knowledge of state management (RxJS, or React Query + custom streams) and data flow patterns for streaming + request/response. Testing: Jest/Vitest, React Testing Library, Playwright; strong mock/contract testing. Security: XSS mitigation, CSP, auth flows (OAuth), secure storage, anti phishing UX. CI/ ...

while remaining collaborative and outcome-focused. Technical Skills React 18 TypeScript (Strict Mode) TanStack Query, Form and Router Tailwind CSS Radix UI/shadcn Vitest React Testing Library Mock Service Worker (MSW) Nice to Have While not essential, experience in any of the following would be highly beneficial: Auth0 ...

tools. Experience with CI/CD systems (Vercel, GitHub Actions). Experience building or maintaining a design system. Experience with testing libraries and tools (Vitest, React Testing Library, Playwright, Jest). Experience using Tailwind or other utility-based CSS libraries. The stack Next.js React TypeScript Tailwind Typesense ClickHouse Vercel Shadcn ...

equivalent. Nice tohave: comfort with runtime type validation at trust boundaries — Zod, Yup, or similar. Nice tohave: experience writing unit andcomponenttests — Jest andReactTesting Library,Vitest, or equivalent. Nice tohave: containerisationfundamentals using Docker or an equivalent tool, and general scripting ability in Bash or PowerShell. Highly desirable: experience with the Azure ...

equivalent. Nice tohave: comfort with runtime type validation at trust boundaries — Zod, Yup, or similar. Nice tohave: experience writing unit andcomponenttests — Jest andReactTesting Library,Vitest, or equivalent. Nice tohave: containerisationfundamentals using Docker or an equivalent tool, and general scripting ability in Bash or PowerShell. Highly desirable: experience with the Azure ...

hands-on AWS Lambda and API Gateway experience CDK or SST for infrastructure as code DynamoDB, Secrets Manager, SSM Parameter Store Solid testing discipline (Vitest or similar) and comfort with GitLab CI Monorepo experience and confidence with OAuth/token-based auth flows Nice to have: React + TypeScript ...