126 to 150 of 155 Permanent Jest Jobs

/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 ...

.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 ...

understanding customer needs and the real‐world impact of their work. Is passionate about quality, with hands‐on experience in TDD and tools like Jest and React Testing Library. Values clean, maintainable code and enjoys discussing different ideas and approaches. Has experience mentoring and supporting other engineers, contributing ...

team, understanding customer needs and the real‐world impact of their work.Is passionate about quality, with hands‐on experience in TDD and tools like Jest and React Testing Library.Values clean, maintainable code and enjoys discussing different ideas and approaches.Has experience mentoring and supporting other engineers, contributing to an environment where ...

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 ...

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 ...

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 ...

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/ ...

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 ...

Secrets Manager Docker: containerisation of .NET microservices for ECS/Fargate deployment. DevOps & Engineering Practices CI/CD: GitHub Actions — automated build, test (xUnit, Jest), lint, Docker build, and deployment pipelines. Testing: xUnit and Moq for .NET unit and integration tests; Jest and React Testing Library for front-end; Playwright ...

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 ...

Fiber, WebGL, Deck.gl ) Real-time data flows: Comfortable working with real-time data and async patterns (Websockets, workers) Writing testable, reusable code: Vitest/Jest/Playwright, Storybook, design systems Data visualisation: Presenting complex data intuitively; geospatial experience is a plus. UX/UI (desirable): A strong sense of user ...

Redux Saga, and Zustand for complex application stateCross-platform understanding of iOS and Android platform differences, native modules, and device compatibilityStrong testing background using Jest, React Native Testing Library, test-driven development, and maintaining high code coverage Proven debugging skills with React Native profiling tools, Sentry crash reporting, and performance ...

issues across JS thread, native thread, and render pipeline. Experience with automated testing for mobile unit, integration, and end‐to‐end (e.g. Jest, Maestro, Appium). Familiar with App Store and Google Play submission, review processes, and release management. A collaborative, clear communicator who works well with product ...

designs and requirements into high-quality interfaces. Develop reusable components using modern UI component libraries. Write and maintain unit tests using tools such as Jest or Jasmine. Work within Agile development teams and contribute to sprint planning, refinement and delivery. Ensure applications meet WCAG accessibility standards. Use Git for version … TypeScript/JavaScript (ES6+). HTML5 and CSS3, including responsive design. REST API integration. State management experience, ideally Redux or NgRx. Unit testing with Jest, Jasmine or equivalent. Git. Strong understanding of WCAG and accessible web development. Experience with modern UI/component libraries. Experience working within Agile development teams. ...