16 of 16 Jest Jobs in London

and TypeScript. Proficiency in state management. Strong understanding of RESTful API integration, authentication, and security practices. Experience with CI/CD pipelines (Azure DevOps or similar) and automated testing (Jest, Cypress). Solid grounding in UX principles, responsive design, and accessibility (WCAG). Confident working within design systems and reusable component frameworks. Collaborate across disciplines — particularly with backend and QA More ❯

innovation go hand-in-hand. Your Technical Toolkit React/React Native/TypeScript Swift (iOS)/Kotlin (Android) JavaScript/HTML/CSS Figma/Git Testing frameworks : Jest, Cypress, XCTest, Espresso CI/CD pipelines : GitHub Actions, CircleCI, Bitrise Cloud-native architecture : AWS, Docker, Kubernetes Observability tools Interview Process 3 Stage Interview Stage 1 - Discussion with our Hiring More ❯

Hands-on experience with DevOps practices (CI/CD pipelines, Docker, GitHub Actions). Familiarity with frontend tooling such as Vite, ESLint, CSS-in-JS, and testing frameworks like Jest or Cypress. Excellent communication and collaboration skills. Strong leadership skills and the ability to guide teams through technical decisions. A passion for quality, performance, and security. Highly Desirable: Experience with More ❯

in a web front end using tools such as Adobe Analytics. Strong understanding of state management principles and routing strategies. Proficient in unit testing and Test-Driven Development using Jest or Vitest. Skilled in Git, GitLab workflows, and managing merge requests. Experienced with NPM Workspaces, pre-commit hooks, and build/package/test processes. Solid understanding of consuming RESTful More ❯

in a web front end using tools such as Adobe Analytics. Strong understanding of state management principles and routing strategies. Proficient in unit testing and Test-Driven Development using Jest or Vitest. Skilled in Git, GitLab workflows, and managing merge requests. Experienced with NPM Workspaces, pre-commit hooks, and build/package/test processes. Solid understanding of consuming RESTful More ❯

clearly to stakeholders What We’re Looking For Strong technical background in TypeScript, React, Node.js, and Next.js Familiarity with GraphQL, Postgres, and Redis Experience using testing frameworks such as Jest and Cypress Solid understanding of CI/CD, DevOps , and cloud hosting (AWS, Docker, Pulumi, Heroku) Confident delivering features quickly and reliably, with a strong eye for quality Skilled at More ❯

etc). Web Service API integration Experience with TDD environment (Test Driven development) Unit testing with PHP Unit and/or a JS test framework eg Mocha, Jasmine/Jest, React Test Worked in an agile environment (Epics, User Stories, Tasks). More ❯

of the following is a nice to have: Worked in an Agile environment Some React.js experience Web Service API integration Selenium/Cypress Unit testing with Mocha, Jasmine/Jest, React Test Related web technologies like Sass/Less, AJAX and JSON Micro Front-End What you can expect: At Global Relay, there’s no ceiling to what you can More ❯

attention to detail. An ability to explain technical concepts to non-technical audiences. Useful Experience NextJS/Vercel (app router, caching, speed-insights, static rendering, turbo, mono-repo) Typescript Jest Storybook (and Storybook testing) Playwright Contentful (or similar headless CMSs) Algolia Datadog (or similar monitoring tools, structuring logs, setting up monitors) GitHub actions HTTP (headers, status codes, payloads) Akamai GraphQL More ❯

a microservices-based architecture They work with a variety of technologies. You’ll ideally have experience with some of the following, or be open to learning: JavaScript: React, Node, Jest, Cypress Ruby (non-Rails environment) – nice to have AWS: EC2, ECS, Lambda, S3, SQS Databases: MongoDB & PostgreSQL They are looking for someone who is: Proactive, collaborative, and adaptable Approachable and More ❯

transition premium services into SAS. Utilise your expertise in Scala for Back End development. Contribute to Front End development using React, Redux, and Typescript. Employ Material UI, Storybook, and Jest for Front End enhancements. Work with Scala.js and the Play framework for development tasks. Utilise Postgres and MongoDB for database management. Implement DevOps practices using Docker, Kubernetes, and AWS. Essential More ❯

And Key Responsibilities Key Technologies: Frontend: Angular 16, TypeScript, RxJS, Angular Material Backend: Node.js 20, Firebase Cloud Functions, Express.js Database: Firebase Firestore, BigQuery Cloud: Google Cloud Platform, Firebase Testing: Jest, Storybook Build Tools: pnpm, Turborepo, Angular CLI DevOps: Google Cloud Build, Infisical, Sentry, Shell Scripting Version Control: Git, GitHub Technical Development and Implementation: Develop and maintain Angular 16+ applications using … Write clean, maintainable, and well-documented code following established coding standards Participate in code reviews and provide constructive feedback to team members Develop and maintain comprehensive unit tests using Jest Work within a monorepo structure using pnpm workspaces Implement CI/CD pipelines using Google Cloud Build and Firebase deployment tools Manage application state and data flow using reactive programming … particularly Firebase Firestore Cloud Platforms: Hands-on experience with Google Cloud Platform and Firebase services Version Control: Proficient with Git, GitHub workflows, and collaborative development practices Testing: Experience with Jest and test-driven development approaches API Integration: Ability to integrate and work with third-party APIs and services Problem Solving: Strong analytical and debugging skills Communication: Excellent written and verbal More ❯

the frontend is React Native with TypeScript, and NextJS. Across the rest of Lendable we also use PHP 8, Symfony, MySQL, PostgreSQL, RabbitMQ, Docker, Kubernetes, React, ArgoCD, Behat, PHPUnit, Jest, and Maestro. How You'll Have An Impact Own and optimise the delivery process to ensure features reach customers efficiently, contributing directly to quarterly and yearly OKRs focused on customer More ❯

visualisation Intelligent document parsing + ML techniques Advanced investment and instrument calculations ⭐ Your Toolbelt Not mandatory, but ideal: Deep TypeScript expertise Strong Node.js + React background Familiarity with PostgreSQL, Jest, Playwright DevOps experience Great communicator with high EQ — someone who thrives in collaborative environments 🌍 Why Join You’ll be building software that reshapes an industry still running on spreadsheets and More ❯

Node.js engineeringinproductionenvironments. Strongcommercialexperiencewith NestJS (orsimilarstructuredframeworks) Previousworkwithin consultancyordigitalagencyenvironments-Highlydesirable Demonstrated client-facingexperience ,includingpresentingtechnicalapproachesandmanagingexpectations. Solidunderstandingofmodernbackendarchitecture,APIdevelopment,microservices,andintegrationpatterns. Experiencewith TypeScript , RESTfulAPIs ,andideallyGraphQL. StrongunderstandingofCI/CDpipelines,modernDevOpsworkflows,andcloudplatforms(AWS,GCP,orAzure) Familiaritywithtestingframeworks(Jest,etc.) Abilitytoworkindependentlyunderlimitedsupervisioninaremoteenvironment. Excellentcommunicationanddocumentationskills Nice-to-Have Experienceindigitalagency-stylerapiddeliveryenvironments. KnowledgeofcontainerisationtoolssuchasDocker. Experiencewithauthentication/authorisationframeworks(OAuth,JWT,etc.). Backgroundinmentoringorleadingsmalltechnicalteams. Upto£400perdayOutsideofIR35. Applynow. More ❯

with code reviews, architectural decisions, and mentoring. What You Bring: 8+ years in software development, 5+ with Angular (v12+). Strong in Angular Material, Nx, NGXS/NgRx, RxJS, Jest/Cypress/Playwright. Solid grasp of CSS, UI design, accessibility, and cross-browser compatibility. Collaborative mindset and a focus on delivering real business impact. Bonus: Experience with GCP, FastAPI More ❯