1 to 25 of 68 Jest Jobs in the UK

React and state management libraries (redux, react query); Source code repositories and change management tools (e.g. Git); Agile development practices and test automation (Unit/Integration/E2E testing - Jest/Testing Library/Cypress, Playwright); Build processes and release automation (Azure Pipelines, Nexus); Experience of agile development practices, DevOps pipelines, continuous integration/deployment, test automation and the E2E More ❯

Jira, BitBucket, Bamboo from Atlassian). Understanding of agile development methodologies (Scrum, Kanban). Excellent problem-solving, analytical, and debugging skills. Unit testing and automation tools such as JUnit, Jest, Cypress and Playwright. Strong communication and interpersonal skills, with the ability to collaborate effectively in a team environment. Preferred Skills and Qualifications: Prior experience building Enterprise SaaS platforms and products. More ❯

performance tuning.Excellent problem-solving, communication, and leadership skills. Nice to Have Experience with GraphQL and API Gateway.Exposure to Kafka, RabbitMQ, or other messaging frameworks.Familiarity with automated testing frameworks (JUnit, Jest, Cypress).Knowledge of DevOps practices and Infrastructure as Code (Terraform, Ansible). More ❯

and interfacing with the content/asset delivery APIS. Experience of developing and maintaining infrastructure as code. Experience with unit, integration, and end to end testing tools and practices (Jest, Playwright). Understanding of Microservices & principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. Experience performing code reviews and following up with learning opportunities. Experience More ❯

and version control workflows Understanding of software engineering best practices and clean code principles Nice to have Familiarity with Next.js and SSR/SSG Experience with testing frameworks like Jest, React Testing Library or Cypress Awareness of CI/CD tools and pipelines Basic understanding of backend technologies such as Node.js You'll be part of a modern engineering setup More ❯

collaborative team setting. Significant experience with version control systems such as Git. Strong expertise in writing and maintaining automated tests (e.g., unit, integration, or component tests using NUnit, xUnit, Jest, or Jasmine). Desirable Experience with both front end (e.g. React, TypeScript) and back end (.NET C#, ASP.NET) development, especially related to API consumption good practices such as schema validation More ❯

/Auth systems (OAuth2/OpenID Connect/JWT). Experience with messaging/eventing platforms (RabbitMQ, Kafka). Infrastructure as Code (Terraform, ARM templates). Front-end testing (Jest, React Testing Library) and TypeScript. Domain knowledge in fintech/healthcare/B2B SaaS (optional). Benefits & culture Competitive salary: £50k–£60k plus potential performance bonus. Hybrid working model — flexible More ❯

/Auth systems (OAuth2/OpenID Connect/JWT). Experience with messaging/eventing platforms (RabbitMQ, Kafka). Infrastructure as Code (Terraform, ARM templates). Front-end testing (Jest, React Testing Library) and TypeScript. Domain knowledge in fintech/healthcare/B2B SaaS (optional). Benefits & culture Competitive salary: £50k–£60k plus potential performance bonus. Hybrid working model — flexible More ❯

APIs and token-based authentication (e.g., JWT). Familiarity with popular frontend development tools such as Node, NPM, CI/CD pipelines, DevOps practices, and performance testing frameworks like Jest and React Testing Library. Experience with performance and memory tuning using relevant tools. What we offer Join us and you'll find a different way of doing things. We call More ❯

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 ❯

Building Cross-platform interfaces (Web, Phone, Tablet). Experience with modern build tools (Webpack, Vite, or similar) and version control (Git). Desired: Experience with TypeScript. Exposure to Cypress, Jest, or other testing frameworks. Experience in design systems or component library architecture. Interest in motion design, or animation frameworks (e.g., Framer Motion). Benefits: Competitive Base Salary Flexible working hours More ❯

growth and innovation. Contribute to DevOps practices including CI/CD pipelines and infrastructure automation. Required Skills TypeScript/Node.js REST APIs (Express, Nest.js, or similar frameworks) Unit testing (Jest or equivalent) Cloud computing (GCP preferred; AWS or Azure experience also valuable) Infrastructure as Code (Terraform or similar) Docker and Compose Continuous Integration tools and environments Experience in a Continuous More ❯

Service Bus Desirable Skills Knowledge of LDDF framework , MOD digital services, or Defence data standards Infrastructure as Code - Terraform or Ansible Experience with MODCloud, AWS, or Azure Testing frameworks: Jest, Mocha, Supertest Familiarity with JSP 440 , NCSC Secure Coding Guidelines , or Defence Digital standards Security Clearance Active SC clearance is mandatory . Candidates eligible for DV clearance will be prioritised More ❯

Service Bus Desirable Skills Knowledge of LDDF framework , MOD digital services, or Defence data standards Infrastructure as Code - Terraform or Ansible Experience with MODCloud, AWS, or Azure Testing frameworks: Jest, Mocha, Supertest Familiarity with JSP 440 , NCSC Secure Coding Guidelines , or Defence Digital standards Security Clearance Active SC clearance is mandatory . Candidates eligible for DV clearance will be prioritised More ❯

experience with AWS, full stack TypeScript with React on the front end, IaC, CI/CD Experience with unit, integration, and end to end testing tools and practices (e.g. Jest, Cypress, Backstop). Enjoys upskilling others in a team - you prioritise sharing knowledge Experience with integration and onboarding 3rd party vendors, meeting with vendor engineering contacts, defining integration patterns, abstracting More ❯

/UX, accessibility (WCAG/WAI), and usability standards Wireframing, prototyping, and high-fidelity mock-ups Use of Figma, Sketch or Adobe XD Testing tools such as Cypress, Mocha, Jest, Selenium, Playwright, Docker, Postman Experience in Agile and/or Waterfall environments What's on offer: Work with modern frameworks including both Vue.js and Nuxt.js, with migration planned Defined progression More ❯

with knowledge of best practices • DevOps strategies, designing and best practices/strategies • Senior development experience using MERN framework for web application development. • Unit with React Testing Library/Jest and E2E test automation with Cypress • Industry standard CI/CD Orchestration Tools (GitHub Actions and Docker) • knowledge of Docker, API microservices, API integration with SAP • A detailed and working More ❯

React on the front end. Hands-on experience with cloud environments and Infrastructure-as-Code, alongside foundational CI/CD knowledge. Experience working with automated testing tools such as Jest, Cypress or Backstop. Understanding of RESTful APIs, microservices, documentation, versioning and mocking. Experience contributing to code reviews and working within Agile delivery environments. This is a full-time, permanent role More ❯

Redis, WebSocket React , Next.js , TailwindCSS , Redux Toolkit Docker , Kubernetes (AKS) , Nginx Azure Cloud services (App Services, AKS, Storage), Cloudflare , OAuth2/JWT CI/CD pipelines , GitHub , Azure Repos , Jest Nice-to-Haves Familiarity with real-time multiplayer architectures or game backend services. Contributions to open-source projects or personal side projects you're proud of. Experience working in gaming 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 ❯

CSS Experience implementing web analytics (e.g., Adobe Analytics) Strong engineering principles for SPAs and best practices for TypeScript Expertise in state management and routing Unit testing/TDD using Jest or Vitest Proficiency with Git, GitLab, merge requests, and code reviews Experience with NPM Workspaces, pre-commit hooks, and build/test pipelines Understanding of RESTful APIs and authentication protocols More ❯

CSS Experience implementing web analytics (e.g., Adobe Analytics) Strong engineering principles for SPAs and best practices for TypeScript Expertise in state management and routing Unit testing/TDD using Jest or Vitest Proficiency with Git, GitLab, merge requests, and code reviews Experience with NPM Workspaces, pre-commit hooks, and build/test pipelines Understanding of RESTful APIs and authentication protocols 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 ❯