18 of 18 Jest Jobs in London

and adaptability matter. Your Technical Toolkit React/React Native/TypeScript Swift (iOS)/Kotlin (Android) JavaScript/HTML/CSS Figma/Vercel/Git Testing frameworks : Jest, Cypress, XCTest, Espresso CI/CD pipelines : GitHub Actions, CircleCI, Bitrise Cloud basics : AWS, Docker, K8s (exposure preferred) Desirable Familiarity with RDBMS/NoSQL for data modeling awareness Interview Process More ❯

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 ❯

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 ❯

coding practices and cloud-native architectures Frontend & Scripting Good experience with AngularJS Hands-on expertise in: Node 10, Groovy, Bash, TypeScript Testing Frameworks Working knowledge of: Karate, Gherkin, Cypress, Jest Additional Requirements Strong understanding of automation, integration, and cloud-native testing. Experience supporting service operations and resolving production issues. Proven background working in Agile/Scrum environments. Ability to design 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 ❯

SSR) and static site generation (SSG) Strong understanding of internationalisation (i18n) and localisation practices Experience with component library development and design system implementation Knowledge of frontend testing strategies (Cypress, Jest, React Testing Library, Storybook) Previous experience with CI/CD pipelines for frontend applications (Jenkins, GitHub Actions) Understanding of web performance optimisation and core web vitals Strong problem-solving skills More ❯

systems, advanced note formatting, and seamless integrations—all built with React and TypeScript and secured with end-to-end encryption. Tech Stack and Tools: • JavaScript, TypeScript, React, ES6, Playwright, Jest, Grafana • All Standard Notes codebases are open source: Encryption presents unique challenges to front-end development. Features like search and syncing are designed to function entirely within a secure and More ❯

JavaScript frameworks Strong experience of HTML, CSS, SASS Experience of working with UX/UI designs Ideally exposure to Figma & Adobe Suite Experience of working with testing tools like: Jest & Cypress Exposure to mentoring and supporting team development would also be beneficial The company are working in a Hybrid model, which would require you to travel to their off office More ❯

create database schemas that represent and support business processes Technologies - Familiarity with TypeScript, Cordova, Native development for Android and/or iOS, RAIL Performance, PWA, SSR, Node, Cypress and Jest Full Stack - Full-stack experience (double bonus points if Ruby or Elixir) This list is not exhaustive and there may be other activities you are required to deliver. What we 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 ❯

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

About Us: Solirius Reply, part of the Reply Group, delivers technical consultancy and application delivery to our clients in order to solve real world problems and allow our clients to respond to an ever-changing technical landscape. We partner closely More ❯

enforce design-system consistency and a11y. Keep things fast: performance profiling, bundle budgets, and Vite build pipeline improvements. Raise the quality bar with tests (Vitest, Playwright/Cypress/Jest), code reviews, and observability. Improve DX: ESLint/Prettier configs, CI feedback loops, Storybook-style workflows. Requirements 2+ years building production web apps with React + TypeScript. Proven track record 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 ❯

essential: Experience leading teams or mentoring other developers Experience working on a multi-national codebase Previous experience in the energy industry Our stack: React GraphQL & Apollo Styled Components & SASS Jest & React Testing Library TypeScript Storybook Xstate (desirable) We would prefer someone who can work in our London office but will consider remote candidates. However, you do need to be able More ❯