1 to 25 of 36 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 ...

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 ...

Router, React, and TypeScript.• Optimize Prisma and PostgreSQL data models for high-throughput concurrency and sub-100ms API response times.• Build automated testing pipelines (Vitest, Playwright) and collaborate closely with product and UX designers.• Ensure adherence to WCAG 2.1 AA accessibility guidelines and robust data privacy protocols (GDPR/FERPA ...

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 ...

ownership and work effectively in a fast-moving environment Nice to have Data visualisation or dashboard experience Tailwind CSS or component libraries Playwright, Cypress, Vitest or Jest Cloud platforms and CI/CD Python/backend experience AI/ML or data-driven products Experience in a start ...

observability for the frontend (RUM, logging, error tracking). Experience with frontend testing strategies, including unit, integration, and end-to-end testing (e.g., Jest, Vitest, React Testing Library, Playwright, Cypress). Experience collaborating closely with UX/UI designers to turn wireframes and design systems into accessible, performant experiences ...

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 ...

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 ...

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 ...

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 ...

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/ ...

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 ...

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/ ...

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 ...

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. ...

libraries such as Zustand and TanStack Query You have experience of writing clean, maintainable, testable code, with automated testing experience using tools such as Vitest and Playwright You have experience integrating REST APIs and working with API contracts, ideally using OpenAPI specifications You have an eye for detail ...

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 ...

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 ...

including owning a test strategy rather than just execution. Hands on Test Automation in Typescript and/or Python, with tools such as Playwright, Vitest or Pytest Experience testing products that combine hardware and software Clear Technical writing: Test Plans, procedures, and reports that can withstand external scrutiny Desirable: Docker ...

Actions, TeamCity). Testing Practices: Proficient in writing and maintaining unit and integration tests, demonstrating an understanding of test-driven development (TDD) principles (e.g., Vitest, Playwright, Jest). Distributed Systems Knowledge: Familiarity of distributed systems, including building scalable and resilient services (e.g., Redis, Kafka, AWS infrastructure). Problem-Solving & Collaboration ...

TypeScript-first organisation. Our frontend stack is TypeScript and React, styled with SCSS, server-side rendered with Next.js and Express, and tested with Vitest & Chromatic. As a Staff engineer you’ll bring deep expertise with the latest native web technologies and modern frameworks, drive consistency across ...

strong eye for detail and product quality Experience creating reusable component libraries and scalable frontend architecture Strong understanding of modern testing practices (Playwright, Vitest, Jest, React Testing Library etc.) Comfortable collaborating closely with engineers, product teams and non-technical stakeholders Ability to work autonomously and deliver at pace Contract Details ...