101 to 123 of 123 Jest Jobs in the UK

attention to detail Collaborative approach with cross-functional teams Bonus Skills Familiarity with Python/Django and API integration Experience with HubSpot , Payload CMS , or embedded workflows Testing skills (Jest, RTL) and accessibility best practices Exposure to Figma , CI/CD , or Shopify Perks Based in Leeds LS11 (Full time office based) Competitive salary Work on meaningful, user-facing products More ❯

stack features withTypeScript, Next.js, React, Tailwind, Shadcn Design APIs and backend services (Node/Python, Prisma, Postgres, Redis, NoSQL) Deliver responsive, accessible, user-friendly UI Write automated tests (Playwright, Jest) Manage deployments, performance, and observability Leverage AI tools to deliver innovative features Comfortable across UIs, APIs, and infrastructure (AWS/GCP) Startup-minded, collaborative, and product-focused Details Up to More ❯

experience Strong commercial experience with React and TypeScript Familiarity with Vite, Next.js, or other modern build tools Comfortable with component libraries and design systems Proficient in testing frameworks (e.g. Jest, React Testing Library) Good understanding of performance optimisation and accessibility best practices The ideal candidate will be proactive, collaborative, and keen to influence both tech and product direction. If you More ❯

Native) and back-end (Node.js/REST/GraphQL) systems Strong understanding of software QA methodologies, tools, and processes Experience writing automated tests with frameworks such as Playwright, Cypress, Jest, or similar Familiarity with CI/CD pipelines and integrating automated tests into deployment workflows Comfortable using tools like Postman, GitHub, and Linear (or similar issue trackers) Excellent attention to More ❯

Native) and back-end (Node.js/REST/GraphQL) systems Strong understanding of software QA methodologies, tools, and processes Experience writing automated tests with frameworks such as Playwright, Cypress, Jest, or similar Familiarity with CI/CD pipelines and integrating automated tests into deployment workflows Comfortable using tools like Postman, GitHub, and Linear (or similar issue trackers) Excellent attention to More ❯

App Store and Google Play Store Tech Stack & Tools React Native with TypeScript, React Navigation, Reanimated/Gesture Handler Java/Kotlin & Swift/Objective-C Gradle, GitHub Actions Jest, React Testing Library, Detox (end-to-end) App Attest, Play Integrity API, secure coding best practices If this sounds interesting, please apply for a confidential chat to find out more. More ❯

App Store and Google Play Store Tech Stack & Tools React Native with TypeScript, React Navigation, Reanimated/Gesture Handler Java/Kotlin & Swift/Objective-C Gradle, GitHub Actions Jest, React Testing Library, Detox (end-to-end) App Attest, Play Integrity API, secure coding best practices If this sounds interesting, please apply for a confidential chat to find out more. More ❯

applications using JavaScript, TypeScript, React, and NodeJS. Build and optimize user interfaces with modern state management tools (Redux Toolkit, Zustand) and styling frameworks (Tailwind). Implement automated testing using Jest, Mocha, Vitest, and Enzyme to ensure high code quality. Develop and maintain end-to-end testing suites with Playwright. Configure and optimize build processes using Vite and Webpack. Collaborate with … and modern state management libraries (Redux Toolkit, Zustand). Expertise in front-end build tools (Vite, Webpack) and styling frameworks (Tailwind). Hands-on experience with automated testing frameworks (Jest, Mocha, Vitest, Enzyme). Familiarity with end-to-end testing tools (Playwright). Experience with GitLab and container orchestration (Kubernetes). Strong understanding of web application architecture and best practices. More ❯

applications using JavaScript, TypeScript, React, and NodeJS. Build and optimize user interfaces with modern state management tools (Redux Toolkit, Zustand) and styling frameworks (Tailwind). Implement automated testing using Jest, Mocha, Vitest, and Enzyme to ensure high code quality. Develop and maintain end-to-end testing suites with Playwright. Configure and optimize build processes using Vite and Webpack. Collaborate with … and modern state management libraries (Redux Toolkit, Zustand). Expertise in front-end build tools (Vite, Webpack) and styling frameworks (Tailwind). Hands-on experience with automated testing frameworks (Jest, Mocha, Vitest, Enzyme). Familiarity with end-to-end testing tools (Playwright). Experience with GitLab and container orchestration (Kubernetes). Strong understanding of web application architecture and best practices. More ❯

applications using JavaScript, TypeScript, React, and NodeJS. Build and optimize user interfaces with modern state management tools (Redux Toolkit, Zustand) and styling frameworks (Tailwind). Implement automated testing using Jest, Mocha, Vitest, and Enzyme to ensure high code quality. Develop and maintain end-to-end testing suites with Playwright. Configure and optimize build processes using Vite and Webpack. Collaborate with … and modern state management libraries (Redux Toolkit, Zustand). Expertise in front-end build tools (Vite, Webpack) and styling frameworks (Tailwind). Hands-on experience with automated testing frameworks (Jest, Mocha, Vitest, Enzyme). Familiarity with end-to-end testing tools (Playwright). Experience with GitLab and container orchestration (Kubernetes). Strong understanding of web application architecture and best practices. More ❯

applications using JavaScript, TypeScript, React, and NodeJS. Build and optimize user interfaces with modern state management tools (Redux Toolkit, Zustand) and styling frameworks (Tailwind). Implement automated testing using Jest, Mocha, Vitest, and Enzyme to ensure high code quality. Develop and maintain end-to-end testing suites with Playwright. Configure and optimize build processes using Vite and Webpack. Collaborate with … and modern state management libraries (Redux Toolkit, Zustand). Expertise in front-end build tools (Vite, Webpack) and styling frameworks (Tailwind). Hands-on experience with automated testing frameworks (Jest, Mocha, Vitest, Enzyme). Familiarity with end-to-end testing tools (Playwright). Experience with GitLab and container orchestration (Kubernetes). Strong understanding of web application architecture and best practices. More ❯

applications using JavaScript, TypeScript, React, and NodeJS. Build and optimize user interfaces with modern state management tools (Redux Toolkit, Zustand) and styling frameworks (Tailwind). Implement automated testing using Jest, Mocha, Vitest, and Enzyme to ensure high code quality. Develop and maintain end-to-end testing suites with Playwright. Configure and optimize build processes using Vite and Webpack. Collaborate with … and modern state management libraries (Redux Toolkit, Zustand). Expertise in front-end build tools (Vite, Webpack) and styling frameworks (Tailwind). Hands-on experience with automated testing frameworks (Jest, Mocha, Vitest, Enzyme). Familiarity with end-to-end testing tools (Playwright). Experience with GitLab and container orchestration (Kubernetes). Strong understanding of web application architecture and best practices. More ❯

development using Node.js. Experience working with C# in enterprise environments. Familiarity with cloud computing, infrastructure as code, and CI/CD pipelines. Experience with automated testing tools such as Jest or Vitest Comfortable using Azure DevOPs The Senior Developer will be joining a friendly, agile, and innovative team, based in Birmingham where you will play an integral role in the … development of data-rich, user-friendly applications Keywords: Senior Software Engineer, Fullstack Developer, Node.js, React, TypeScript, C#, REST API, NextJS, Jest, Vitest, CI/CD, Azure DevOPs, Birmingham, West Midlands, Full Stack Engineer, Software Developer Erin Associates Ltd is acting as an Employment Agency in relation to this vacancy. More ❯

development using Node.js. Experience working with C# in enterprise environments. Familiarity with cloud computing, infrastructure as code, and CI/CD pipelines. Experience with automated testing tools such as Jest or Vitest Comfortable using Azure DevOPs The Senior Developer will be joining a friendly, agile, and innovative team, based in Birmingham where you will play an integral role in the … development of data-rich, user-friendly applications Keywords: Senior Software Engineer, Fullstack Developer, Node.js, React, TypeScript, C#, REST API, NextJS, Jest, Vitest, CI/CD, Azure DevOPs, Birmingham, West Midlands, Full Stack Engineer, Software Developer Erin Associates Ltd is acting as an Employment Agency in relation to this vacancy. More ❯

development using Node.js. Experience working with C# in enterprise environments. Familiarity with cloud computing, infrastructure as code, and CI/CD pipelines. Experience with automated testing tools such as Jest or Vitest Comfortable using Azure DevOPs The Senior Developer will be joining a friendly, agile, and innovative team, based in Birmingham where you will play an integral role in the … development of data-rich, user-friendly applications Keywords: Senior Software Engineer, Fullstack Developer, Node.js, React, TypeScript, C#, REST API, NextJS, Jest, Vitest, CI/CD, Azure DevOPs, Birmingham, West MidlandsErin Associates Ltd is acting as an Employment Agency in relation to this vacancy. More ❯

development using Node.js. Experience working with C# in enterprise environments. Familiarity with cloud computing, infrastructure as code, and CI/CD pipelines. Experience with automated testing tools such as Jest or Vitest Comfortable using Azure DevOPs The Senior Developer will be joining a friendly, agile, and innovative team, based in Birmingham where you will play an integral role in the … development of data-rich, user-friendly applications Keywords: Senior Software Engineer, Fullstack Developer, Node.js, React, TypeScript, C#, REST API, NextJS, Jest, Vitest, CI/CD, Azure DevOPs, Birmingham, West Midlands Erin Associates Ltd is acting as an Employment Agency in relation to this vacancy. More ❯

along with a strong understanding of component-based architecture, state management (e.g., Redux, Zustand, or Recoil), and front-end performance optimization. Experience with RESTful APIs, GraphQL, and testing frameworks (Jest, React Testing Library, Cypress) is highly desirable. You should be comfortable mentoring junior engineers, conducting code reviews, and helping the team adopt scalable, maintainable practices. This role offers an exciting … management libraries (Redux, Zustand, Recoil, or similar), and responsive design. Familiarity with RESTful APIs, GraphQL , and integrating frontend applications with backend services. Hands-on experience with frontend testing frameworks (Jest, React Testing Library, Cypress) and ensuring high-quality, maintainable code. Knowledge of performance optimization, accessibility (WCAG), and cross-browser compatibility best practices. Strong collaboration skills, able to mentor junior engineers More ❯

along with a strong understanding of component-based architecture, state management (e.g., Redux, Zustand, or Recoil), and front-end performance optimization. Experience with RESTful APIs, GraphQL, and testing frameworks (Jest, React Testing Library, Cypress) is highly desirable. You should be comfortable mentoring junior engineers, conducting code reviews, and helping the team adopt scalable, maintainable practices. This role offers an exciting … management libraries (Redux, Zustand, Recoil, or similar), and responsive design. Familiarity with RESTful APIs, GraphQL , and integrating frontend applications with backend services. Hands-on experience with frontend testing frameworks (Jest, React Testing Library, Cypress) and ensuring high-quality, maintainable code. Knowledge of performance optimization, accessibility (WCAG), and cross-browser compatibility best practices. Strong collaboration skills, able to mentor junior engineers More ❯

along with a strong understanding of component-based architecture, state management (e.g., Redux, Zustand, or Recoil), and front-end performance optimization. Experience with RESTful APIs, GraphQL, and testing frameworks (Jest, React Testing Library, Cypress) is highly desirable. You should be comfortable mentoring junior engineers, conducting code reviews, and helping the team adopt scalable, maintainable practices. This role offers an exciting … management libraries (Redux, Zustand, Recoil, or similar), and responsive design. Familiarity with RESTful APIs, GraphQL , and integrating frontend applications with backend services. Hands-on experience with frontend testing frameworks (Jest, React Testing Library, Cypress) and ensuring high-quality, maintainable code. Knowledge of performance optimization, accessibility (WCAG), and cross-browser compatibility best practices. Strong collaboration skills, able to mentor junior engineers More ❯

Springboot) and AWS cloud services (ECR, ECS, Lambda, API Gateway, S3, DynamoDB, Step Functions, Apigee) Proficiency in AngularJS, Jenkins, Karate, Node 10, Groovy, Bash, Typescript. Knowledge of Gherkin, Cypress, Jest Tooling: Gitlab, Jenkins, CloudFormation, Maven, Docker, Fortify on Demand, SonarQube AWS DevOps Engineer certification or above. Understanding of software development lifecycle. Ability to apply secure coding practices. Experience with CI … Cloudflare Languages: Java 8 (SpringBoot), Node 10, Groovy, Bash, Angular.js, Typescript, Drupal AWS Services: ECR, ECS, Lambda, API Gateway, S3, DynamoDB, Step Functions Testing: Junit, Karate, Cypress, JMeter, Gatling, Jest Tooling: Gitlab, Jenkins, CloudFormation, Maven, Docker, Fortify on Demand, SonarQube Document Management: SharePoint and SharePoint Wiki Communication: Microsoft Teams More ❯

Springboot) and AWS cloud services (ECR, ECS, Lambda, API Gateway, S3, DynamoDB, Step Functions, Apigee) Proficiency in AngularJS, Jenkins, Karate, Node 10, Groovy, Bash, Typescript. Knowledge of Gherkin, Cypress, Jest Tooling: Gitlab, Jenkins, CloudFormation, Maven, Docker, Fortify on Demand, SonarQube AWS DevOps Engineer certification or above. Understanding of software development lifecycle. Ability to apply secure coding practices. Experience with CI … Cloudflare Languages: Java 8 (SpringBoot), Node 10, Groovy, Bash, Angular.js, Typescript, Drupal AWS Services: ECR, ECS, Lambda, API Gateway, S3, DynamoDB, Step Functions Testing: Junit, Karate, Cypress, JMeter, Gatling, Jest Tooling: Gitlab, Jenkins, CloudFormation, Maven, Docker, Fortify on Demand, SonarQube Document Management: SharePoint and SharePoint Wiki Communication: Microsoft Teams More ❯

senior level contributions writing in TypeScript React PostgreSQL Bonus points for experience in high velocity and technically challenging roles Our tech stack Frontend: React Typescript GraphQL (Apollo Client) Playwright Jest Storybook + Chromatic Mantine GCP (Cloud Run) Backend: Node Typescript PostgreSQL GraphQL Yoga Jest Auth0 GCP (Cloud Run, Cloud SQL, Cloud Storage + more) All the other good stuff: GitHub More ❯

like memoization, lazy loading, and code splitting Optimize performance and ensure high responsiveness across different devices and browsers Write maintainable, testable code and perform debugging using tools such as Jest, React Testing Library, and React DevTools Ensure accessibility, security, and UI/UX consistency across all interfaces Requirements 5+ years of experience developing complex front-end applications using (hooks, state … practices Experience integrating APIs, managing asynchronous data flows, and handling errors gracefully Knowledge of web security standards (XSS, CSRF prevention) and accessibility guidelines Experience writing and maintaining tests with Jest or React Testing Library; familiarity with Storybook is a plus Excellent communication skills and the ability to collaborate effectively in remote, multicultural teams Bonus: experience in SaaS environments, FinTech, or More ❯