1 to 25 of 42 Vitest Jobs in the UK

Github pull requests and take part in code reviews Build accessible interfaces that meet WCAG 2.2 AA. Write unit tests and Playwright tests, PHPunit, Vitest/Jest Identify the cause of bugs and implement bug fixes Support Deployment to customer and internal environments Write secure code that protects users, including ...

design, and CSS-in-JS or modern styling approaches (Bootstrap, Sass). Back-end: Experience consuming and integrating REST APIs. Testing: Jest, Testing Frameworks (ViTest, etc). DevOps: Azure DevOps (Pipelines & Boards). Performance: Familiarity with performance profiling tools. Valued Technical Stack Complexity: Previous work on high-traffic/consumer ...

status Our Tech Stack: Backend: xUnit, WebApplicationFactory, Testcontainers for .NET, WireMock.Net, MassTransit Test Harness, Respawn, Bogus, Verify Web and Mobile: Playwright with TypeScript, Maestro, Vitest, React Testing Library, Mock Service Worker Testing (cross-cutting): Postman, Pact for contract testing, axe-core for accessibility, k6 and NBomber for load and performance ...

status Our Tech Stack: Backend: xUnit, WebApplicationFactory, Testcontainers for .NET, WireMock.Net, MassTransit Test Harness, Respawn, Bogus, Verify Web and Mobile: Playwright with TypeScript, Maestro, Vitest, React Testing Library, Mock Service Worker Testing (cross-cutting): Postman, Pact for contract testing, axe-core for accessibility, k6 and NBomber for load and performance ...

with modern React patterns (hooks, context, state management) Experience with frontend testing strategies and tools (unit, integration and end‐to‐end), e.g., Jest/Vitest, React Testing Library, Playwright/Cypress Accessibility‐first delivery (WCAG), including semantic HTML and assistive technology testing Web performance optimisation and profiling, including Core ...

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 ...

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 ...

component libraries WCAG 2.1 AA accessibility standards REST API integration SSO implementation experience Role-based user experiences and permissions models Frontend testing (Jest, Vitest, React Testing Library, etc.) Git/GitHub and modern engineering practices Hands-on experience with Claude Code and AI-assisted development workflows Ideal Background ...

Supabase is a plus) 05 Solid understanding of RESTful APIs and web services 06 Experience writing unit, integration and e2e tests with Jest/Vitest and Playwright 07 Comfortable using Git and working within agile delivery 08 Strong problem-solving skills and attention to detail 09 Clear communication skills ...

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/ ...

design systems. Familiarity with modern frontend build tools such as Vite, Rollup or esbuild. Experience with automated frontend testing tools such as Playwright, Vitest or similar. Good understanding of web security, accessibility and frontend performance. Experience taking ownership of complex production applications. Desirable Experience Any of the following would ...

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 ...

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 consuming and helping shape REST API contracts, including working with an OpenAPI specification. Ability to implement beautiful styles using CSS. Real experience ...

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 ...

enough to see what the framework is doing for you. Accessibility in practice: keyboard, focus, screen reader. Useful, not required TypeScript. Testing with Jest, Vitest or Playwright. #J-18808-Ljbffr ...

enough to see what the framework is doing for you. Accessibility in practice: keyboard, focus, screen reader. Useful, not required TypeScript. Testing with Jest, Vitest or Playwright. #J-18808-Ljbffr ...

enough to see what the framework is doing for you. Accessibility in practice: keyboard, focus, screen reader. Useful, not required TypeScript. Testing with Jest, Vitest or Playwright. #J-18808-Ljbffr ...

Livewire Knowledge of Next.js or Nuxt.js Experience with WebSockets and real-time applications Understanding of web accessibility (WCAG) standards Experience with testing frameworks (Jest, Vitest, Cypress) Familiarity with UI/UX design principles Experience building interactive interfaces and modern UIs Competitive salary based on experience Latest development equipment and tools ...

requirements You must have experience and practical knowledge in: TypeScript Next.js and React Unit testing with libraries like Jest, React Testing Library, or vitest e2e testing tools like Cypress or Playwright Strong problem - solving skills and attention to detail A passion for engineering craft - you practise writing maintainable code, reviewing ...

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 ...

functionally with Product, Design, Compliance, and other engineering teams to deliver impactful solutions Frontend: React, TypeScript, Material-UI Module Federation (Micro-frontend architecture) Vite, Vitest Python 3.13, FastAPI LangGraph (AI agent orchestration) LlamaIndex (RAG/vector search) AWS Bedrock Infrastructure: AWS (ECS Fargate, Lambda, API Gateway, S3) Terraform, GitHub Actions ...

data layer, while also extending the React front end. You will work with Azure services, implement tests with xUnit, Moq on backend and Vitest or Jest on frontend, participate in code reviews, architecture decisions, and CI/CD improvements. 5+ years of experience required, strong C#, .NET, React and TypeScript. ...

. Experience with Tailwind CSS , headless UI libraries ( Radix UI or shadcn/ui ), and Apollo Client (GraphQL). Modern testing and build tooling: Vitest , Testing Library , Playwright , and Vite . Experience with enterprise browser auth via Microsoft Entra ID (MSAL) . Nice to Have Front-end consolidation or micro ...

similar (function/tool calling, agent frameworks, or integrating AI features into products)Deeper Laravel experience (Eloquent, queues, testing)Experience with front-end testing (Vitest, Testing Library, Cypress, or Playwright)Familiarity with build tooling (Vite, Webpack) and CI/CD pipelinesExposure to Tailwind CSS, Inertia.js, Nuxt, or similar tools ...