'Jest' Job Vacancies

51 to 75 of 109 Jest Jobs

Senior Software Engineer, Frontend

London Area, United Kingdom
Hybrid / WFH Options
Travelex
fluency with TypeScript, Next.js and React Experience with design systems, component libraries and Storybook Familiarity with state management libraries Experience with the testing pyramid and tools such as Vitest, Jest, Playwright Strong understanding of non-functional requirements (e.g. Accessibility, Security & Performance) Understanding of CI/CD practices and deployment pipelines Proficient with Git version control Nice to have: Experience with More ❯
Posted:

Senior Software Engineer, Frontend

london, south east england, united kingdom
Hybrid / WFH Options
Travelex
fluency with TypeScript, Next.js and React Experience with design systems, component libraries and Storybook Familiarity with state management libraries Experience with the testing pyramid and tools such as Vitest, Jest, Playwright Strong understanding of non-functional requirements (e.g. Accessibility, Security & Performance) Understanding of CI/CD practices and deployment pipelines Proficient with Git version control Nice to have: Experience with More ❯
Posted:

Senior Software Engineer, Frontend

london (city of london), south east england, united kingdom
Hybrid / WFH Options
Travelex
fluency with TypeScript, Next.js and React Experience with design systems, component libraries and Storybook Familiarity with state management libraries Experience with the testing pyramid and tools such as Vitest, Jest, Playwright Strong understanding of non-functional requirements (e.g. Accessibility, Security & Performance) Understanding of CI/CD practices and deployment pipelines Proficient with Git version control Nice to have: Experience with More ❯
Posted:

Senior Software Engineer, Frontend

slough, south east england, united kingdom
Hybrid / WFH Options
Travelex
fluency with TypeScript, Next.js and React Experience with design systems, component libraries and Storybook Familiarity with state management libraries Experience with the testing pyramid and tools such as Vitest, Jest, Playwright Strong understanding of non-functional requirements (e.g. Accessibility, Security & Performance) Understanding of CI/CD practices and deployment pipelines Proficient with Git version control Nice to have: Experience with More ❯
Posted:

Web Developer

Swindon, Wiltshire, England, United Kingdom
Hybrid / WFH Options
Avanti
first mindset (Core Web Vitals): code splitting, lazy loading, bundle analysis. Experience calling REST APIs securely from the browser, handling auth tokens/refresh and robust error UX. Testing: Jest + React Testing Library for unit/integration; Playwright or Cypress for E2E. Familiar with modern tooling (npm/yarn/pnpm, Vite/Webpack, ESLint/Prettier, type-checks More ❯
Employment Type: Full-Time
Salary: £35,000 - £45,000 per annum
Posted:

Sr Engineer - Register Platform, Stores

Minneapolis, Minnesota, United States
Target
to advance the Target POS UI and enhance the experience for both guests and team members. Core Technologies: Languages : TypeScript, JavaScript Frameworks : ReactJS Integration and Testing : REST API, Playwright, Jest, Client-side OAuth CI/CD Tools : Docker, Vela Good to know additional Frameworks & Languages : Next JS, Spring Boot, Java, Golang, Gradle Good to Know Databases : Postgres, MongoDB Metrics Visualization More ❯
Employment Type: Permanent
Salary: USD 82 Hourly
Posted:

Senior Technical Lead

Atlanta, Georgia, United States
Cook Systems International
Guide teams implementing NestJS v10, ORM (TypeORM), and REST APIs; ensure consistent standards across servicesDatabase: Oversee schema design, optimization, and integration with PostgreSQL and Oracle SQLTesting: Ensure use of Jest for both frontend and backend unit testing to maintain quality and CICD alignmentIntegration: Dell Boomi, MuleSoft?Core Docker: Docker Engine, Docker Compose, Dockerfile authoring, Docker Hub, Docker RegistryContainer Orchestration: Kubernetes More ❯
Employment Type: Any
Salary: USD Annual
Posted:

Senior React Developer

Staines, Surrey, South East, United Kingdom
Hybrid / WFH Options
Spectrum It Recruitment Limited
would be advantageous but is not a prerequisite Good software engineering principles eg Version control/Git, issue tracking, documentation etc Node.js Front end development tools and libraries like jest, rollup etc Experience with connected devices Web/UX design appreciation Figma or similar Full stack software development If you are seeking a role of this nature, please get in More ❯
Employment Type: Permanent, Work From Home
Salary: £75,000
Posted:

Senior React Developer

Staines-upon-Thames, Middlesex, England, United Kingdom
Hybrid / WFH Options
Spectrum IT Recruitment
would be advantageous but is not a prerequisite Good software engineering principles eg Version control/Git, issue tracking, documentation etc Node.js Front end development tools and libraries like jest, rollup etc Experience with connected devices Web/UX design appreciation Figma or similar Full stack software development If you are seeking a role of this nature, please get in More ❯
Employment Type: Full-Time
Salary: £70,000 - £75,000 per annum
Posted:

UX Engineer

Manchester, United Kingdom
Hybrid / WFH Options
Adecco
TypeScript , HTML5 , and CSS3 Experience integrating with design systems and tools such as Figma Familiarity with modern development tools including Git, CI/CD workflows, and testing frameworks (e.g. Jest, Testing Library) Comfortable working in agile environments with cross-functional teams Excellent attention to detail and ability to bring design concepts to life through clean, maintainable code More ❯
Employment Type: Contract
Posted:

UX Engineer

Manchester, Lancashire, England, United Kingdom
Hybrid / WFH Options
Adecco
TypeScript , HTML5 , and CSS3 Experience integrating with design systems and tools such as Figma Familiarity with modern development tools including Git, CI/CD workflows, and testing frameworks (e.g. Jest, Testing Library) Comfortable working in agile environments with cross-functional teams Excellent attention to detail and ability to bring design concepts to life through clean, maintainable code More ❯
Employment Type: Contractor
Rate: Salary negotiable
Posted:

Software Development Team Lead

Bracknell, Berkshire, England, United Kingdom
Spectrum IT Recruitment
in the following would be advantageous: Latest versions of .NET AI, Machine Learning JavaScript, TypeScript and associated frameworks Containers, Docker, Kubernetes NoSQL Test tools such as xUnit, Cypress, Selenium, Jest, SoapUI This is an exciting opportunity to join a rapidly expanding company using the latest tools and technologies. If you are looking for a role of this nature, please contact More ❯
Employment Type: Full-Time
Salary: £80,000 - £100,000 per annum
Posted:

Software Development Team Lead

Bracknell, Berkshire, South East, United Kingdom
Hybrid / WFH Options
Spectrum It Recruitment Limited
in the following would be advantageous: Latest versions of .NET AI, Machine Learning JavaScript, TypeScript and associated frameworks Containers, Docker, Kubernetes NoSQL Test tools such as xUnit, Cypress, Selenium, Jest, SoapUI This is an exciting opportunity to join a rapidly expanding company using the latest tools and technologies. If you are looking for a role of this nature, please contact More ❯
Employment Type: Permanent, Work From Home
Posted:

Frontend Developer (x2 – Senior & Mid-Level)

Edinburgh, Scotland, United Kingdom
Hybrid / WFH Options
Explore Group
decisions. (Optional) Work with AI-driven components and Python-based APIs to enhance application intelligence. Tech Stack Core: React, TypeScript, HTML5, CSS3 (SASS/Styled Components) Tooling: Webpack, Vite, Jest, Cypress Backend exposure: Python/FastAPI/Django (desirable) AI/ML Integration: Experience or curiosity around AI-driven applications or tools is a strong plus. About You Commercial experience More ❯
Posted:

Frontend Developer (x2 – Senior & Mid-Level)

livingston, central scotland, united kingdom
Hybrid / WFH Options
Explore Group
decisions. (Optional) Work with AI-driven components and Python-based APIs to enhance application intelligence. Tech Stack Core: React, TypeScript, HTML5, CSS3 (SASS/Styled Components) Tooling: Webpack, Vite, Jest, Cypress Backend exposure: Python/FastAPI/Django (desirable) AI/ML Integration: Experience or curiosity around AI-driven applications or tools is a strong plus. About You Commercial experience More ❯
Posted:

Frontend Developer (x2 – Senior & Mid-Level)

broughton, central scotland, united kingdom
Hybrid / WFH Options
Explore Group
decisions. (Optional) Work with AI-driven components and Python-based APIs to enhance application intelligence. Tech Stack Core: React, TypeScript, HTML5, CSS3 (SASS/Styled Components) Tooling: Webpack, Vite, Jest, Cypress Backend exposure: Python/FastAPI/Django (desirable) AI/ML Integration: Experience or curiosity around AI-driven applications or tools is a strong plus. About You Commercial experience More ❯
Posted:

Frontend Developer (x2 – Senior & Mid-Level)

dunfermline, north east scotland, united kingdom
Hybrid / WFH Options
Explore Group
decisions. (Optional) Work with AI-driven components and Python-based APIs to enhance application intelligence. Tech Stack Core: React, TypeScript, HTML5, CSS3 (SASS/Styled Components) Tooling: Webpack, Vite, Jest, Cypress Backend exposure: Python/FastAPI/Django (desirable) AI/ML Integration: Experience or curiosity around AI-driven applications or tools is a strong plus. About You Commercial experience More ❯
Posted:

React JS Developer

United Kingdom
iVedha Inc
Technical & AI/ML Skills: Expert in JavaScript/TypeScript, React (Hooks, Context, Redux). Modern front-end tooling (Webpack, Babel, Vite). API integration, state management, and testing (Jest, React Testing Library), including AIaugmented testing platforms. Web security best practices (XSS, CSRF, authentication flows), enhanced by AI tools. Familiarity with containerization, CI/CD, and responsive UI/UX More ❯
Posted:

Full Stack Engineer (Angular + Node.js)

United Kingdom
Hybrid / WFH Options
MYT Shutters
Apollo, server or client) · PostgreSQL or relational database experience · Familiarity with AWS (RDS, S3, ECS/Fargate, etc.) · Experience with Nx monorepos and modular architectures · Testing experience with Playwright, Jest, or similar · Exposure to ERP, manufacturing, or production systems · Experience with CI/CD pipelines and containerised deployments Why Join Us? If you're excited by a clean stack, real More ❯
Posted:

Senior Front End Developer

manchester, north west england, united kingdom
Hybrid / WFH Options
Manchester Airports Group
new technologies, experimenting with new approaches to improve solutions. Comfortable with ambiguity, able to propose and evaluate solutions rather than simply implementing tickets verbatim. Experienced in , Vuex, Typescript, Node, Jest, GraphQL, or E2E testing (or keen to expand your knowledge in these). Passionate about coaching and sharing knowledge with your team. Focused on maintainable, high-quality code that prioritises More ❯
Posted:

Web-based User Interface Software Engineer

laurel, maryland, united states
Johns Hopkins Applied Physics Laboratory (APL)
Engineering or equivalent Have 5 or more years of experience in frontend web development using Typescript and React Have experience developing backends using Python Have written frontend tests with Jest and/or Cypress Have developed and maintained Gitlab CI/CD pipelines Have used the Material UI component library Have containerized new and existing software using Docker and Podman More ❯
Posted:

Mid-Level Full-Stack Engineer (React + Go) Remote - EMEA / Engineering

London, United Kingdom
Hybrid / WFH Options
Tyk Technologies
best practices: memoization, virtualization, code-splitting, lazy loading, minimizing re-renders; use React Profiler and browser devtools Secure frontend practices (XSS/CSRF mitigation, CSP, input sanitization) Testing with Jest and React Testing Library Understanding of modern build tooling (Vite/Webpack), bundling, and asset delivery Here's what we're looking for: Technical Skills Solid engineering experience across frontend More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

UX Front End Developer

Sheffield, South Yorkshire, United Kingdom
Austin Banks
or above for every release. Taking part in daily stand-ups, sprint planning, demos, and retrospectives. Working closely with team members to deliver features iteratively and efficiently. Using Jest and React Testing Library for unit testing. Running end-to-end tests with Cypress or Playwright. Maintaining at least 80% test coverage across projects. Configuring and running GitHub Actions pipelines. Automating … build. VS Code/Visual Studio: Confident in configuring settings, extensions, and launch configs. Accessibility: Knowledge of WCAG 2.1 and ARIA, with audit/test results as evidence. Testing: Jest, React Testing Library, and Cypress/Playwright, including coverage reports. Build tools: Webpack or Vite, npm or Yarn, with a focus on optimised bundles and code-splitting. CI/CD … Version control: Git with feature branch workflows and protected main branches. CI/CD: GitHub Actions for linting, testing, building, and deploying. Package managers: npm and Yarn. Testing frameworks: Jest, React Testing Library, Cypress, and Playwright. Project management: Tiega. Cross-browser testing: Chrome, Edge, Firefox, Safari, and BrowserStack. More ❯
Employment Type: Permanent
Salary: £35000 - £45000/annum
Posted:

React Native Developer

Knutsford, Cheshire, United Kingdom
Hydrogen Group
methods, and design patterns Manage app state using Redux, Context API, or Zustand Integrate TypeScript for robust, type-safe code Ensure code quality via ESLint, Prettier , and comprehensive testing (Jest, React Testing Library, Detox, or Cypress) Apply WCAG accessibility and security standards for inclusive, compliant experiences Optimize app performance through profiling and tuning Contribute to CI/CD pipelines and More ❯
Employment Type: Contract
Rate: GBP 360 Daily
Posted:

Lead Frontend Engineer

london, south east england, united kingdom
Gravitas Recruitment Group (Global) Ltd
reputation and long-term investment in technology. Tech Stack React, TypeScript, (core technologies) Integration with Headless CMS (e.g. Contentful) CI/CD pipelines, infrastructure-as-code, automated testing (Node, Jest, React Testing Library, SonarCloud, NPM) Exposure to Cloud environments and secure API-driven architectures What You'll do Design and develop new components and features for key user interfaces Expand More ❯
Posted:
Jest
10th Percentile
£44,125
25th Percentile
£51,875
Median
£66,250
75th Percentile
£84,688
90th Percentile
£93,750