26 to 50 of 50 Vitest Jobs in London

Node.js internals. Demonstrable hands-on experience using modern front-end build tools and bundlers (Webpack, Rollup, Vite). Comprehensive experience with modern testing tools and frameworks, such as Jest, Vitest, React Testing Library, Playwright, or Cypress, including writing robust unit, integration, and end-to-end tests, as well as establishing best practices for test coverage and continuous integration pipelines. Significant More ❯

detailed testing and optimization. Conduct thorough code reviews to ensure code quality and share insights with team members. Develop and maintain automated tests using tools such as pgtap, NUnit, Vitest, and Cypress/Playwright. Demonstrate a willingness to learn new languages and technologies. Support and assist wider team efforts and projects when necessary. Required Qualifications: Bachelor’s degree in Computer … professional experience in software development with a focus on full-stack engineering. Strong proficiency in .NET, C#, Postgres, Vue.js, and TypeScript. Experience writing and maintaining tests with pgtap, NUnit, Vitest, and Cypress/Playwright. Strong object-oriented programming skills. Solid understanding of agile development methodologies. Experience with deployment processes and best practices. Strong communication skills, able to effectively convey technical More ❯

/Open AI, RAG, Vector Databases, and Semantic Search Working containers via Docker, K8s, and/or Azure Container Instances Frontend unit testing experience is a plus ( i.e. Jest, Vitest ) Education in Computer Science or Software Engineering (or related experience) Experience developing software using Microsoft Visual Studio, Github , Jira and/or Azure DevOps Experience with CI/CD and More ❯

great place to work as they are growing organically and steadily, have a very healthy culture and they promote from within. Tech stack includes; Vue, Nuxt, TypeScript, Vuetify, Tailwind, Vitest, Playwright, and AWS services such as DynamoDB, Lambda and CloudWatch - so experience with these technologies or alternatives would be helpful but it is not required. They use techniques such as More ❯

great place to work as they are growing organically and steadily, have a very healthy culture and they promote from within. Tech stack includes; Vue, Nuxt, TypeScript, Vuetify, Tailwind, Vitest, Playwright, and AWS services such as DynamoDB, Lambda and CloudWatch - so experience with these technologies or alternatives would be helpful but it is not required. They use techniques such as More ❯

great place to work as they are growing organically and steadily, have a very healthy culture and they promote from within. Tech stack includes; Vue, Nuxt, TypeScript, Vuetify, Tailwind, Vitest, Playwright, and AWS services such as DynamoDB, Lambda and CloudWatch - so experience with these technologies or alternatives would be helpful but it is not required. They use techniques such as 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 ❯

React, and GraphQL MongoDB Atlas AWS-based infrastructure using ECS, Lambda, and CloudWatch CI/CD pipelines with GitHub Actions, Terraform, and IaC Testing via Cypress (E2E), Jest/Vitest (unit) Observability with tools like Sentry, Datadog, or New Relic You won’t be starting from scratch, the platform is already live and scaling, but there is real scope to More ❯

your initiative. Loves staying up to date on technology and is happy to suggest short-term and long-term improvements. Has experience testing applications and using frameworks such as vitest, Jest, Mocha, or Cypress. Can suggest new ideas to the team to help us improve the product, and as developers. Is proficient in English and good communicator. Preferred skills Experience More ❯

your initiative. Loves staying up to date on technology and is happy to suggest short-term and long-term improvements. Has experience testing applications and using frameworks such as vitest, Jest, Mocha, or Cypress. Can suggest new ideas to the team to help us improve the product, and as developers. Is proficient in English and good communicator. Preferred skills Experience More ❯

predictable code Remix or Nextjs (or you're excited to learn remix ) – You understand how to navigate the frameworks and how SSR works Testing – You’ve used tools like Vitest, Jest, or Testing Library to test components and user flows Communication – You write clearly, ask thoughtful questions, and give kind, constructive feedback A keen eye for UX – You’ll work 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 ❯

engineers on API specifications and integration Improve the seller & customer experience in gradual, frequent iterations Experience required Have strong technical skills with: React, TypeScript, CSS, React Testing Library/Vitest, Playwright. Implemented performant, responsive front-end applications in agile Product teams. Have substantial experience working closely with product designers during discovery and implementation phases of projects. Have a strong understanding More ❯

engineers on API specifications and integration Improve the seller & customer experience in gradual, frequent iterations Experience required Have strong technical skills with: React, TypeScript, CSS, React Testing Library/Vitest, Playwright. Implemented performant, responsive front-end applications in agile Product teams. Have substantial experience working closely with product designers during discovery and implementation phases of projects. Have a strong understanding More ❯

services, and React frontend applications. Our Tech Stack UI: Typescript, React.JS, Redux, rxjs, webpack API: .NET, REST, Minimal APIs, Azure Function Apps Platforms: Azure, Azure DevOps Pipelines Testing: Jasmine, vitest, Playwright What You'll Be Doing Building externally facing portal capabilities for customer interactions online Collaborating with engineers, product owners, UX designers, and InfoSec colleagues Participating in team ceremonies and 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 ❯

Excellent written and verbal communication skills (both technical and non-technical). Desirable Skills and Experience Knowledge of the Genesys platform, telephony systems or contact centres. Experience in Playwright, ViTest and other testing frameworks. Experience of integrating automated testing into a CI/CD pipeline. Experience testing SaaS, Enterprise and traditional in-house developed applications. Experience in testing conversation design More ❯

You’ll Be Doing Build responsive, performant interfaces in SolidJS Work closely with the UX/UI designer and CTO to match specs exactly Implement tests using Playwright and Vitest Follow my clients coding style guide with care Deliver features quickly and reliably, aligned with their product roadmap Collaborate with a kind, talented team that cares deeply about user experience More ❯

London base in Holborn. What will you be doing? Building great user interfaces in React and TypeScript, creating beautiful components with Storybook and testing it all with Playwright and Vitest Ideating and implementing innovative features for our end users Working and collaborating with our UI/UX Design team to ensure our user experience is flawless. Improving performance and navigation More ❯

other developers, ui/ux, product, etc.) to deliver great features to our users. Our stack is built on modern foundations – a monorepo powered by TypeScript, React, Storybook, Vite, Vitest, Playwright, ESLint, Prettier, pnpm, and Turborepo. As we work in the open and are fully open-source, you can get a better idea of who we are and the work More ❯

Conduktor is an Enterprise Data Management (EDM) platform that specializes in streaming. We empower industry leaders to implement their Streaming Data Strategy with a comprehensive approach to data control, compliance, and security; unconstrained by their infrastructure providers. Our platform mitigates More ❯

You’ll Be Doing Build responsive, performant interfaces in SolidJS Work closely with the UX/UI designer and CTO to match specs exactly Implement tests using Playwright and Vitest Follow my clients coding style guide with care Deliver features quickly and reliably, aligned with their product roadmap Collaborate with a kind, talented team that cares deeply about user experience More ❯

You’ll Be Doing Build responsive, performant interfaces in SolidJS Work closely with the UX/UI designer and CTO to match specs exactly Implement tests using Playwright and Vitest Follow my clients coding style guide with care Deliver features quickly and reliably, aligned with their product roadmap Collaborate with a kind, talented team that cares deeply about user experience More ❯

You’ll Be Doing Build responsive, performant interfaces in SolidJS Work closely with the UX/UI designer and CTO to match specs exactly Implement tests using Playwright and Vitest Follow my clients coding style guide with care Deliver features quickly and reliably, aligned with their product roadmap Collaborate with a kind, talented team that cares deeply about user experience More ❯

sweat the details in layout, motion, spacing, and polish Deep understanding of modern front-end principles including component architecture, state management, and accessibility Familiarity with testing frameworks (e.g., Jest, Vitest, React Testing Library) and performance optimization strategies Experience collaborating with design teams and contributing to scalable design systems Proven ability to clearly articulate technical and visual ideas in writing and More ❯