1 to 25 of 43 Jest Jobs in England

using the ReactJS framework. Familiarity with HTML, CSS-in-JS (or SASS), NodeJS, NPM and TypeScript. Experience of using and developing RESTful web services. Experience of web testing frameworks (Jest, Enzyme, Cypress, RTL etc.). Experience working in a git-based CI/CD SDLC environment. Knowledge of data structures, algorithms, and designing for performance. Excellent stakeholder management skills Previous More ❯

delivery and a unified customer experience. 4. Governance, Security & Quality Ensure accessibility (WCAG 2.1), internationalization (i18n), and performance benchmarks are consistently met. Establish frontend testing strategy using tools like Jest, React Testing Library, Cypress, etc. Partner with security teams to implement secure-by-design frontends aligned with SaaS compliance needs (e.g., OWASP, SSO, GDPR). Required Qualifications Bachelor's or More ❯

excellent problem-solving skills, a user-focused mindset, and the ability to thrive in Agile delivery teams. Key Responsibilities Design and build modern web applications using React, TypeScript, CSS, Jest/Vitest, Webpack, and Ag Grid. Apply modern JavaScript coding, testing, debugging, and automation techniques. Contribute to the creation and optimisation of CI/CD pipelines and deployment practices. Collaborate More ❯

directly influence trading performance. What You’ll Be Doing Building UIs with modern tech such as React, ES6, Node.js, TypeScript, GraphQL, SQL/NoSQL, Redux, CSS-in-JS, Webpack, Jest, Enzyme Delivering high-quality, well-tested, and maintainable code Collaborating with internal stakeholders to plan, coordinate, and gather feedback Contributing to the full product lifecycle, from concept to deployment Championing More ❯

IAM/Auth0). Deep understanding of SDLC, Agile delivery, and cross-functional collaboration (Product, UX, QA). Proficient in CI/CD, Docker, Git, and test frameworks like Jest and Cypress. Strong communication skills able to bridge technical and non-technical stakeholders. Experience with Jira for sprint planning and delivery tracking; familiarity with Figma for UI handoffs. Track record More ❯

IAM/Auth0). Deep understanding of SDLC, Agile delivery, and cross-functional collaboration (Product, UX, QA). Proficient in CI/CD, Docker, Git, and test frameworks like Jest and Cypress. Strong communication skills able to bridge technical and non-technical stakeholders. Experience with Jira for sprint planning and delivery tracking; familiarity with Figma for UI handoffs. Track record More ❯

technologies across the group - Participate in Scrum ceremonies The Ideal Candidate: - Extensive experience with frontend technologies (React, JavaScript, Typescript, Redux, HTML5 and CSS3) - Experience with testing frameworks such as Jest, React Testing Library, Cypress and Playwright - Exposure to CI/CD, Github, Docker, Jenkins and Grafana (a nice to have) - Experience managing a team of software developers from a people More ❯

languages such as Java/Springboot, PHP or .Net would also be beneficial, although not essential. Experience with unit, integration, and end-to-end testing tools and practices (e.g. Jest, Cypress, Backstop, Playwright). Experience with CI/CD and Trunk Based Development. Experience with observability tools and practices, including monitoring, logging, and tracing to ensure system reliability and performance. 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 React.js and Next.js development Language: Solid experience with TypeScript API Development: Experience building RESTful APIs and working with databases Testing: Experience writing unit tests using testing frameworks (pytest, Jest, or similar) CI/CD: Exposure to CI/CD pipelines and automated deployment processes Version Control: Proficiency with Git and collaborative development workflows Problem Solving: Ability to debug and More ❯

Proficient) - SPA development, state management, performance optimization. js (Proficient) - microservices architecture. GraphQL (Working) - queries, mutations, schema awareness. SQL (PostgreSQL) (Working) - schema design, queries, migrations. JavaScript (Working) - legacy code and Jest tests. Go (Awareness) - infrastructure tooling and services. Python (Awareness) - Airflow DAGs and automation scripts. Infrastructure & Cloud AWS (EKS, S3, IAM) Kubernetes fundamentals (pods, services, ingress, Istio, Traefik). Containerization with More ❯

MySQL (Google Cloud SQL), MongoDB Cloud: Google Cloud Run, Cloud Storage, AWS EC2/S3/Lambda Tools: Docker, GitHub, Jira, AI-assisted dev tools (Copilot, ChatGPT) Testing: Pytest, Jest, Cypress (AI-assisted test generation encouraged) Why Join Us? AI-first development environment we embrace AI to accelerate build, test, and release cycles. Work on cutting-edge SaaS used by More ❯

MySQL (Google Cloud SQL), MongoDB Cloud: Google Cloud Run, Cloud Storage, AWS EC2/S3/Lambda Tools: Docker, GitHub, Jira, AI-assisted dev tools (Copilot, ChatGPT) Testing: Pytest, Jest, Cypress (AI-assisted test generation encouraged) Why Join Us? AI-first development environment we embrace AI to accelerate build, test, and release cycles. Work on cutting-edge SaaS used by More ❯

Ionic Collaborate with UX designers to translate wireframes into polished, user-centric interfaces Build and maintain component libraries using Storybook Write clean, maintainable code and develop robust test coverage (Jest, React Testing Library) Work within agile teams, participating in ceremonies and driving continuous improvement Integrate front-end components with APIs and back-end services Act as a subject matter expert More ❯

Ionic Collaborate with UX designers to translate wireframes into polished, user-centric interfaces Build and maintain component libraries using Storybook Write clean, maintainable code and develop robust test coverage (Jest, React Testing Library) Work within agile teams, participating in ceremonies and driving continuous improvement Integrate front-end components with APIs and back-end services Act as a subject matter expert More ❯

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 ❯

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 ❯

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 ❯

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 ❯

API development Event Driven Architecture, Event Systems Messaging Queues WebSockets SQL, NoSQL DevOps - CI/CD, Docker, GitHub. Desirable skills: WebAssembly IaC AWS Cloud Development Kit Integration testing using Jest or similar NextJS This is an urgent vacancy so if you are interested then please apply quoting reference 102889. React | TypeScript | NodeJS | AWS | Event driven Architecture | CDK | Lambda | Cognito | S3 More ❯

UX, User-centred design, accessibility (WCAG/WAI) and usability Wireframes, prototypes and high-fidelity mock-ups Figma or similar e.g. Sketch, Adobe XD Testing frameworks (e.g. Cypress, Mocha, Jest), and broader testing tools such as Selenium, Playwright, Docker, Postman, GitHub or similar The Where and When This is a full-time role (35 hours per week) based in our More ❯

of a high-impact platform. If you're passionate about clean code, scalable architecture, and modern tooling—this one's for you! Tech Stack: React.js Node.js TypeScript REST APIs Jest/Enzyme/Cypress AWS Interested? Apply now or send your latest CV to ASAP! If you haven’t heard back within 48 hours, please assume your application was not More ❯

and drive delivery Tech Stack You'll Work With: Back-End: C# (.NET Core, ASP.NET MVC 4.0+) Front-End: React, Next.js, TypeScript, Node.js, Tailwind, SASS Testing & Automation: Postman, NUnit, Jest DevOps & Cloud: Azure (Web Apps, Functions, Redis, Storage), Azure DevOps (YAML, Terraform) Other Tools: Git, SQL Server, Umbraco, Visual Studio, LaunchDarkly, Salesforce Marketing Cloud What You'll Bring: 5+ years More ❯

Experience of webpack or similar task/build runner tools Responsive design, mobile first Developing on top of a Microservice architecture using REST services Writing Front End tests (using Jest and VueJs testing library or similar) Solid grounding in current UI/UX design patterns, practices and frameworks Knowledge and experience of the following technologies is desirable: Experience of Cloud More ❯

with a strong focus on React Native . Deep understanding of JavaScript/TypeScript , mobile performance optimization, and component-based architecture. Solid knowledge of mobile development workflows, debugging, testing (Jest, Detox), and CI/CD. Experience integrating RESTful APIs and third-party libraries. Strong communication and leadership skills, with a track record of mentoring developers and promoting coding standards. Nice More ❯