Jest Job Vacancies

126 to 150 of 461 Jest Jobs

Front-end Developer

London, England, United Kingdom
Oak Intranet
with unit, end to end and integration testing Typescript (3+) CSS3 HTML5 VueJS 2 (not Vue 3) JSX/TSX SASS/SCSS React (Hooks) Playwright (end to end) Jest (unit tests) Storybook Above all else we have an excellent culture at Oak which we work hard to maintain. We are looking for an experienced person that has a positive More ❯
Posted:

Frontend Developer (SFIA 3)

London, England, United Kingdom
Hybrid / WFH Options
Zaizi
experience working on continuous integration environments Requirements Coding and testing: Strong REACT experience HTML/CSS/JavaScript TypeScript Testing experience-(Unit testing/End to End testing - e.g Jest/NightwatchJS etc) Experience with AA Standard accessibility Experience with restful API's Experience developing for all major currently used browsers e.g Chrome, Edge etc Strong performance optimisation awareness Nice More ❯
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Web Developer

London, England, United Kingdom
Global Relay
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). Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Information More ❯
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Front End Engineer

United Kingdom
Montu UK
high-quality, reusable code Optimise application performance and scalability across web and mobile platforms Collaborate cross-functionally with backend engineers, designers, and stakeholders Implement and maintain testing frameworks (e.g., Jest, React Testing Library) Champion front-end standards and code quality best practices Help evolve our design system and contribute to front-end architecture decisions What We're Looking For 5+ More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Mid / Senior Software Engineer - Salesforce

Cardiff, Wales, United Kingdom
Hybrid / WFH Options
Aforza Ltd
ll Do Develop new frontend and backend features on Aforza Consumer Goods Develop Restful APIs in APEX Build new features on our LWC web UI Write unit tests using Jest and APEX Tests Perform code reviews on the team’s pull requests Take part in all aspects of SCRUM, including sprint planning, reviews, retros and backlog estimation What We Are More ❯
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Senior Full Stack Engineer

London, England, United Kingdom
Boxt Limited
owning the designing and building of complex applications with a group of engineers Nice to Have • Familiarity with CI/CD pipelines and DevOps practices. • Experience with testing frameworks (Jest, RSpec, etc.). • Understanding of SEO best practices and performance optimisation in Next.js applications. Benefits • 30 days annual leave + bank holidays • Private Medical Cover with Aviva * • 4x salary Death More ❯
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Javascript Developer

Northern Ireland, United Kingdom
Hybrid / WFH Options
Ocho
skills with the ability to deliver practical frontend solutions Desirable Skills: • Experience optimizing performance using tools like Lighthouse , WebPageTest , and techniques like image optimization • Familiarity with frontend testing tools: Jest , React Testing Library , Cypress , or Playwright • Proficiency in data visualization libraries such as Highcharts , D3.js , Chart.js , or ECharts • Experience working with Vue.js (for understanding and migrating legacy systems) • Understanding of More ❯
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React Software Engineer II

London, England, United Kingdom
J.P. MORGAN
for better code quality and maintainability. Experience in JavaScript (ES6+), including concepts like async/await, promises, modules, HTML and CSS. Experience with testing frameworks and tools such as Jest, React Testing Library, or Cypress. Preferred qualifications, capabilities, and skills Exposure to cloud technologies. Familiarity with CSS modules or styled components and CSS selectors. Familiarity with tools like Webpack, Vite More ❯
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Senior Fullstack engineer

London, England, United Kingdom
Aker Systems
have: Experience with frameworks like NextJS, VueJS, Angular, React, or similar Familiarity with server-side rendering (SSR) and static site generation (SSG) in Next.js Experience with testing frameworks like Jest, Cypress, or React Testing Library. Experience with authentication strategies using OAuth, JWT, or Cognito Familiarity with Apache Spark/Flink for real-time data processing is an advantage. Hands-on More ❯
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D&A Microservices Support Specialist

Preston, England, United Kingdom
TieTalent
wider content Desirable: Proven knowledge and experience of web development programming languages such as VueJS, React, Typescript Good knowledge and experience of unit testing and testing frameworks, such as Jest, Cypress Knowledge of web development CI/CD release pipelines, IDEs, Git and/or Docker Knowledge of architectural standards such as RESTful API Experience of working within a ITIL More ❯
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React Software Engineer II

Glasgow, Scotland, United Kingdom
J.P. MORGAN-1
for better code quality and maintainability. Experience in JavaScript (ES6+), including concepts like async/await, promises, modules, HTML and CSS. Experience with testing frameworks and tools such as Jest, React Testing Library, or Cypress. Preferred qualifications, capabilities, and skills Exposure to cloud technologies. Familiarity with CSS modules or styled components and CSS selectors. Familiarity with tools like Webpack, Vite More ❯
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Software Engineer

London, England, United Kingdom
Upscope
ES6+), Node.js, and React, with a solid understanding of their ecosystems. Experience with modern development tools and practices, such as Git, CI/CD pipelines, automated testing frameworks (e.g., Jest, Mocha), and containerisation technologies (e.g., Docker). Knowledge of RESTful API design and development, and familiarity with web services architecture. Ability to write efficient, secure, well-documented, and clean JavaScript More ❯
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Full Stack Engineer (React/Node)

United Kingdom
Apexon
development of complex software solutions Partnering effectively with client project teams You'll have: 4+ years of commercial software development experience in ReactJS, NextJS, NodeJS Unit testing frameworks e.g JEST, Mocha SDLC best practices and automation e.g Mocking, vulnerability scanning, static code analysis etc. A natural ability to mentor junior developers SVN/Git, Agile methodologies Service oriented architecture development More ❯
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Software Development Engineer in Test (SDET) Product & Engineering Belfast

London, United Kingdom
Hybrid / WFH Options
Kadence Limited
Actions), Observability (AWS, Grafana). Development tools: GitHub, Jira, Notion, ChatGPT, Gemini, LangChain, AI-native IDE's (Cursor, JetBrains), LLM-powered internal tools. Test automation: Cypress (E2E), Postman (API), Jest (frontend unit), PHPUnit (backend unit), JUnit (Android), XCTest (iOS). WHAT WE OFFER YOU A front-row seat in a fast scaling, early stage startup. Working on cutting edge problems More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Remote Software Engineer, Nifty Gateway (Fullstack) - Gemini

London, United Kingdom
Hybrid / WFH Options
Blockchain Works
diverse group of people with different areas of expertise. You are comfortably organized amongst chaos. Be familiar with our tech stack: TypeScript, React, styled-component Python PostgreSQL, BigQuery, MySQL Jest, React Testing Library, Cypress, pytes AWS, GCP Kubernetes, Docker, Terraform, GitHub, CircleCI Next.js (Preferred) AR/VR (Preferred) Embrace differences and know that when we can be ourselves at work More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

Woking, England, United Kingdom
IDBS
would be a plus if you also possess previous experience in: TDD/ATDD/BDD, DDD, Pair/Ensemble Programming Oracle SQL, Docker/Kubernetes, Kafka, Jenkins GWT, Jest, Vite, Cypress, Playwright, eslint, esbuild, webpack, web components At IDBS we believe in designing a better, more sustainable workforce. We recognize the benefits of flexible working arrangements for eligible roles More ❯
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Senior QA Engineer Product & Engineering Belfast

London, United Kingdom
Hybrid / WFH Options
Kadence Limited
Actions), Observability (AWS, Grafana). Development tools: GitHub, Jira, Notion, ChatGPT, Gemini, LangChain, AI-native IDE's (Cursor, JetBrains), LLM-powered internal tools. Test automation: Cypress (E2E), Postman (API), Jest (frontend unit), PHPUnit (backend unit), JUnit (Android), XCTest (iOS). WHAT WE OFFER YOU A front-row seat in a fast scaling, early stage startup. Working on cutting edge problems More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Frontend Engineer

London, England, United Kingdom
Henry Schein One group
optimization. Experience integrating with RESTful and/or GraphQL APIs in cloud-based or hybrid environments. Familiarity with state management tools (e.g., Redux, Zustand, Pinia) and testing frameworks (e.g., Jest, Cypress, Playwright ). Comfortable working with design systems, accessibility standards (WCAG), and frontend build tools (e.g., Vite, Webpack). Excellent written and verbal communication skills. Bonus Qualifications Familiarity with DevOps More ❯
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AI/ML Lead Engineer Product & Engineering Belfast

London, United Kingdom
Hybrid / WFH Options
Kadence Limited
AWS, Grafana), OpenAI in Azure. Development tools: GitHub, Jira, Notion, ChatGPT, Gemini, LangChain, AI-native IDE's (Cursor, JetBrains), LLM-powered internal tools. Test automation: Cypress (E2E), Postman (API), Jest (frontend unit), PHPUnit (backend unit), JUnit (Android), XCTest (iOS). WHAT WE OFFER YOU A front-row seat in a fast scaling, early stage startup. Opportunity to define the ML More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Fullstack Software Engineer (f/m/d)

London, England, United Kingdom
Contentful
organize and prioritize competing workloads in a fast-paced environment. Proficiency in using CI/CD pipelines (e.g., GitHub Actions, Circle CI) and maintaining automated tests with tools like Jest or Mocha. Proactive approach with a high sense of ownership. Great communication skills in English, especially when explaining complex technical concepts. Experience with serverless architectures and lower-level language such More ❯
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Senior Software Engineer - React Native

London, England, United Kingdom
Hybrid / WFH Options
Kraken Digital Asset Exchange
iOS and Android Familiarity with React Navigation, Redux Toolkit, MobX, or other state management libraries Experience integrating with RESTful APIs and WebSockets Proficiency with mobile testing frameworks (e.g., Detox, Jest, React Native Testing Library) Experience working with native modules or bridging native code (iOS/Android) when needed Understanding of mobile UX patterns, accessibility, and responsive design principles Excellent collaboration More ❯
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Software Engineer - Unified Client Experience

Newport, UK
Hybrid / WFH Options
Hargreaves Lansdown
for existing applications when necessary. About You Experience with TypeScript, React, CI/CD Experience with unit, integration, and end to end testing tools and practices (e.g. PHPUnit, Playwright, Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development More ❯
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Software Engineer - Unified Client Experience

Bath, Somerset, UK
Hybrid / WFH Options
Hargreaves Lansdown
for existing applications when necessary. About You Experience with TypeScript, React, CI/CD Experience with unit, integration, and end to end testing tools and practices (e.g. PHPUnit, Playwright, Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development More ❯
Posted:

Software Engineer - Unified Client Experience

Bristol, Avon, South West, United Kingdom
Hybrid / WFH Options
Hargreaves Lansdown
for existing applications when necessary. About You Experience with TypeScript, React, CI/CD Experience with unit, integration, and end to end testing tools and practices (e.g. PHPUnit, Playwright, Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development More ❯
Employment Type: Permanent, Part Time
Salary: £45,000
Posted:

Software Engineer - Unified Client Experience

Bradley Stoke, Gloucestershire, UK
Hybrid / WFH Options
Hargreaves Lansdown
for existing applications when necessary. About You Experience with TypeScript, React, CI/CD Experience with unit, integration, and end to end testing tools and practices (e.g. PHPUnit, Playwright, Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with CI/CD and Trunk Based Development. Understanding of Microservices & principles of RESTful API development More ❯
Posted:
Jest
10th Percentile
£47,500
25th Percentile
£55,938
Median
£65,000
75th Percentile
£88,125
90th Percentile
£134,099