76 to 100 of 109 Jest Jobs in the UK

reactive programming paradigms Architecture: Strong understanding of micro-frontends and Single Page Applications (SPA) Testing: Hands-on experience with React Testing Library/Jest for unit and integration testing UI Automation (Good to Have): Exposure to frameworks like Playwright or Cypress Desired Experience Experience working on financial services or trading ...

reactive programming paradigms Architecture: Strong understanding of micro-frontends and Single Page Applications (SPA) Testing: Hands-on experience with React Testing Library/Jest for unit and integration testing UI Automation (Good to Have): Exposure to frameworks like Playwright or Cypress Desired Experience Experience working on financial services or trading ...

/Kanban).Bonus Points:Experience with Redux, GraphQL, or other state management libraries.Background working with SaaS or FinTech applications.Familiarity with mobile testing frameworks like Jest or Detox.Experience with cloud services and mobile deployment pipelines.Location: Hybrid (2 days per week onsite in London ...

high-performance RESTful APIs for large-scale SaaS environmentsTesting Excellence: Passionate about quality, with experience using automated backend testing frameworks (e.g., JUnit, Mocha/Jest)Mindset: A strong sense of ownership, an agile mindset, and excellent English communication skillsExperience working with RDF databases/graph databases and querying with SPARQLA ...

Angular Deep understanding of software architecture, design patterns, and API design principles Experience working with CI/CD pipelines, automated testing frameworks (e.g. Jest, Playwright), and version control Proven experience running large-scale production systems in AWS and working with Kubernetes/containerisation Strong debugging, performance optimisation, and problem-solving ...

Docker, Kubernetes, OpenShift)Infrastructure as Code (Terraform, Ansible)Data & Search TechnologiesRelational Databases (e.g. PostgreSQL)Elasticsearch/OpensearchTesting & QualityUnit testing and automationTesting frameworks (e.g. Mocha, Jest, Cypress)Delivery & CollaborationExperience working in an Agile delivery teamUse of code repositories (e.g. GitLab); familiarity with branching strategies, pull requests and merge processesPlease ensure ...

knowledge of React, TypeScript, and Next.js.A deep understanding of modern frontend architecture, including state management, component patterns, and hooks.Experience with web testing frameworks (like Jest or Cypress) and CSS-in-JS libraries (such as Vanilla Extract or Emotion).A solid grasp of CI/CD processes, version control with ...

experience with Next.js/Angular/Vue.js is beneficial Experience with mobile development frameworks like React Native is beneficial. Experience in Unit Testing with Jest Experience with technical leadership and mentorship to a team of engineers, guiding them in architecture, code quality, and best practices to ensure high-performing ...

experience with Next.js/Angular/Vue.js is beneficial Experience with mobile development frameworks like React Native is beneficial. Experience in Unit Testing with Jest Experience with technical leadership and mentorship to a team of engineers, guiding them in architecture, code quality, and best practices to ensure high-performing ...

Native is beneficial. Experience with GraphQL, preferably using Apollo Client with React for efficient data fetching and state management. Experience in Unit Testing with Jest Continuous Integration experience (Docker) A passion for coding and keeping up to date with new technologies frameworks and techniques Extensive experience in an Agile environment ...

Native is beneficial. Experience with GraphQL, preferably using Apollo Client with React for efficient data fetching and state management. Experience in Unit Testing with Jest Continuous Integration experience (Docker) A passion for coding and keeping up to date with new technologies frameworks and techniques Extensive experience in an Agile environment ...

Native is beneficial. Experience with GraphQL, preferably using Apollo Client with React for efficient data fetching and state management. Experience in Unit Testing with Jest Continuous Integration experience (Docker) A passion for coding and keeping up to date with new technologies frameworks and techniques Extensive experience in an Agile environment ...

Native is beneficial. Experience with GraphQL, preferably using Apollo Client with React for efficient data fetching and state management. Experience in Unit Testing with Jest Continuous Integration experience (Docker) A passion for coding and keeping up to date with new technologies frameworks and techniques Extensive experience in an Agile environment ...

reliable software delivery.You are an expert problem-solver who can debug complex, full-stack issues and maintain high standards for testing using frameworks like Jest or Cypress.You thrive on autonomy and ownership, with the entrepreneurial drive to take a vague problem statement through to a polished, high-impact execution.You ...

design capability across major providers; rounded understanding of database trade-offs – relational, NoSQL, graph and caching strategies. Strong engineering practices: CI/CD, testing (Jest, Cypress, React Test Library), release management and security-conscious development.A genuine passion for AI solutions and specifically for the complexity of delivering them to production ...

design capability across major providers; rounded understanding of database trade-offs – relational, NoSQL, graph and caching strategies. Strong engineering practices: CI/CD, testing (Jest, Cypress, React Test Library), release management and security-conscious development.A genuine passion for AI solutions and specifically for the complexity of delivering them to production ...

architecture design capability across major providers; rounded understanding of database trade-offs – relational, NoSQL,graphand caching strategies. Strong engineering practices: CI/CD, testing (Jest, Cypress, React Test Library), release management and security-conscious development. A genuine passion for AI solutions and specifically for the complexity of delivering them ...

Front End applications using Angular and TypeScript Write clean, maintainable and well-tested code using modern engineering practices Build and maintain automated tests using Jest Contribute to CI/CD pipelines using GitLab CI/CD Support cloud-native deployments using AWS and container technologies Participate in architecture discussions, code … developing applications with Node.js Excellent JavaScript and TypeScript knowledge Experience building REST APIs using Express.js Commercial Angular development experience Experience writing automated tests using Jest Experience using GitLab CI/CD Understanding of Agile software delivery Experience working with Git Desirable Skills Experience with some of the following technologies would ...

written ES6/2015+, React, Redux, Backbone/MarionetteASP.NET WebAPI 2 using C#Production experience of an ORM – Ideally Dapper or Entity Framework 6Testing Frameworks – Jest and/or FakeItEasyPatterns & Practices – SOLID principles, Functional vs Imperative programmingExperience with Entity Framework, Dapper or a similar ORM.Experience with Test Driven Development.Proficiency with code ...

provide constructive, objective feedback. Excels in front-end development using ReactJS, JavaScript, and/or TypeScript. Is experienced in writing tests with libraries like Jest, Cypress, or similar. Understands how to create and maintain reliable, reusable libraries. Thrives on tackling complex technical challenges with creativity and precision. (Bonus) Has experience ...

optimisation and FinOps principles. Experience operating in regulated, security‐sensitive, or high‐availability environments. Experience with test automation frameworks such as PyTest, UnitTest, Vitest, Jest, or similar. AWS certifications in Architecture, DevOps, Security, Networking, Data, or Machine Learning. Required Competencies Strong analytical and problem‐solving skills, with the ability ...

rendering. Deep knowledge of state management (RxJS, or React Query + custom streams) and data flow patterns for streaming + request/response. Testing: Jest/Vitest, React Testing Library, Playwright; strong mock/contract testing. Security: XSS mitigation, CSP, auth flows (OAuth), secure storage, anti phishing UX. CI/ ...

functional/non-functional) and associated techPresentation skills - C-Suite clients and in-houseMentoring - non-AI SDETsInnovation - art of the possibleExperienced in Junit, Jest, PyTest, NUnit, Appium, WDIO, Selenium, Cypress, BrowserStack, Swagger, WireMock, Postman et alDevelopment frameworks: Spring, Angular, .NET, Node et alCI/CD: Jenkins, GitLab CI/… strategy covering all aspects of the SDLC process, development, automation, CI, and metricsHands on using Spring Java, Angular, Python, GitLab CI/CD, Junit, Jest, Cucumber, Bash, Gatling et alExperienced in helping teams evolve an Agile ‘Shift Left’ way of workingExperience of building advanced and feature rich test automation frameworks ...

using generative AI tooling to accelerate delivery and maintain code quality Strong opinions loosely held Experience with the following frontend technologies: TypeScript, React, Webpack, Jest (or similar testing frameworks) Experience with the following backend technologies : Java, Spring, Swagger/OpenAPI or other API definition tools Minimum Qualifications Comprehensive relevant industry ...

rules-based problems in web applications and making that complexity feel simple and usable.Experience writing frontend unit and acceptance tests with tools such as Jest, Karma, Jasmine, Mocha, ava, or tape, and familiarity with the testing pyramid.A track record of raising the bar on how your team or group uses ...