176 to 200 of 314 Jest Jobs in England

Node.js and cloud-based infrastructure Ability to build dynamic dashboards and complex interactive UIs Familiarity with preprocessors (Sass, LESS) and build tools (Webpack, Gulp) Experience with testing frameworks like Jest or Mocha Strong skills in optimizing front-end performance Success Metrics Deliver high-quality, responsive UI components that elevate the overall user experience Maintain a clean, efficient, and high-performing More ❯

using REST APIs Knowledge of SQL, Git Bash, SSMS, MS Build, XML, JSON, Postman Experience with frontend frameworks such as React and state management libraries, testing frameworks such as Jest/Vitest and contributing to UI design systems Benefits and Perks at AFH Flexible working & holidays - Enjoy flexible working and competitive holiday allowance, with annual buy & sell scheme options and More ❯

C# Using a full-stack meta framework (Next.js, Remix, Astro) Developing REST and/or GraphQL web services and APIs (C# and Node.js) Writing both Unit and E2E tests (Jest, Playwright) Working with and deploying to cloud platforms (Azure) Developing for SaaS, PaaS and/or e-commerce applications Writing integrations to third-party services Proficient experience with UI design More ❯

or Vue.js. Proficiency in HTML5, CSS3, and responsive web design, with experience in CSS preprocessors (Sass, LESS) and CSS-in-JS solutions. Experience with front-end testing frameworks like Jest, Mocha, or Cypress. Expertise in optimising web performance, including lazy loading, bundling, minification, and responsive image handling. Knowledge of CMS would be advantageous. You thrive when working as part of More ❯

algorithms. • Awareness of the full development cycle, from analysis to first level production support. • AMPS messaging highly desirable. • Financial knowledge/industry experience an advantage. • Testing libraries including cypress, jest • Can lead and mentor other members on the team. The approximate annual base compensation range for this position is [$60,000 to $75,000]. The actual offer, reflecting the More ❯

A deep understanding of JavaScript (ES6+), along with modern JS tooling/frameworks such as Next.js, Redux Saga & TypeScript. Demonstrable experience of unit testing tools/frameworks (for example Jest, Cypress, Playwright, React Testing Library, etc) A strong understanding of WCAG standards, CSS pre-processors/CSS frameworks & responsive UI development. Leadership quality - you're able to guide and mentor More ❯

HTTP. 5+ years of proven experience contributing to the architecture and design of new and current web systems. Excellent problem-solving ability. Experience with automated testing tools such as Jest, Playwright, and Selenium. Experience in consumption of cloud services and REST Interfaces. Strong understanding of HTTP. LEGION London, England Enquiry Form Fill up this form to reach our stunning Streamed More ❯

RDS, and implement best practices. Design and manage MySQL databases, ensuring efficient and effective data storage and retrieval. Conduct unit testing and end-to-end testing using Cypress and Jest to ensure application stability and reliability. Develop and maintain REST APIs to support application functionality and integrations. Understand and incorporate customer feedback into design and development decisions, ensuring a high More ❯

Next.js. Familiarity with hybrid/cross-platform development (Ionic). Experience with state management solutions (e.g., Context API). Understanding of version control using GitHub. Experience with frontend testing (Jest, React Testing Library). Strong communication skills and team spirit. Ability to work independently and collaboratively. Experience troubleshooting mobile app deployment issues. Knowledge of software architecture, patterns, and engineering best More ❯

/SQL ). Knowledge of version control systems, particularly Git . Familiarity with cloud platforms ( Vercel , Google Cloud/AWS preferred ) and containerisation. Experience with test frameworks such as Jest/supertest. What We’re Looking For Strong problem-solving skills and attention to detail . Excellent communication and teamwork abilities. Ability to manage time effectively and prioritise tasks. Striving More ❯

Professional experience working with Redux Professional experience working with Git, Git Flow Knowledge of CSS preprocessors, (eg. SASS/LESS/CSS-in-JS/Tailwind) Experience testing with Jest/React Testing Library Desirable experience with DevOps tools Desirable experience with Websockets Desirable experience with ES6, Styled Components, Material UI Desirable experience with OpenFin Desirable experience in Finance, specifically More ❯

with microservices architecture and containerization (e.g., Docker, Kubernetes). Knowledge of state management libraries (e.g., Redux, MobX). Familiarity with Agile/Scrum methodologies. Exposure to testing frameworks (e.g., Jest, NUnit) and test-driven development (TDD) What We Offer: A dynamic and inclusive work environment. Opportunities for professional growth and career advancement. Competitive salary and comprehensive benefits package. Flexible work More ❯

UI/UX and web development practices (including use of Figma). Writing clean, maintainable, and efficient code that adheres to industry standards Conducting thorough testing using Vitest/Jest or similar testing libraries to ensure software quality and performance Translating business requirements into robust technical solutions Optimising website performance for speed, SEO, and accessibility, including AI search and agent More ❯

SOLID etc). Web Service API integration Experience with TDD environment (Test Driven development) Unit testing with PHPUnit and/or a JS test framework eg Mocha, Jasmine/Jest, React Test Worked in an agile environment (Epics, User Stories, Tasks). What you can expect: At Global Relay, there’s no ceiling to what you can achieve. It’s More ❯

JavaScript Microservices Development JavaScript/Typescript& JavaScript frameworks/tools: Node Microservices development through Containers or AWS Lambdas Development IDE (e.g., Visual Studio Code, WebStorm) Unit testing framework, e.g., Jest API Testing DevOps IaC, specifically Terraform AWS e.g. EC2/ECS/Fargate Monitoring and alerting tooling e.g. Grafana/Kibana/Mpulse/Rigor Containerisation e.g. Docker Whats in More ❯

have: Experience with frameworks like NextJS, VueJS, Angular, React, or similar Familiarity with server-side rendering (SSR) and static site generation (SSG) in Next.js Experience with testing frameworks like Jest, Cypress, or React Testing Library. Experience with authentication strategies using OAuth, JWT, or Cognito Familiarity with Apache Spark/Flink for real-time data processing is an advantage. Hands-on 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 ❯

distributed, data-driven systems in the cloud, and you’ve ran an engineering team/squad previously. Test-Driven Development – You're very familiar with testing frameworks such as Jest and Pact. Architecture & Problem Solving - You can architect a system that scales, handles high throughput, and integrates seamlessly with a complex ecosystem. CI/CD & Infrastructure as Code - You’ve More ❯

JavaScript, CSS and Web APIs Component-based, declarative UIs (we use React) Accessibility in web apps CSS-in-JS (we use styled-components) Linting and testing frameworks (we use Jest + RTL and Cypress) Static types (we use TypeScript) Data fetching and mutations (we use tRPC, SWR, and TanStack Query) Tooling for frontend teams and shared component systems (we use More ❯

and Machine Learning Knowledge of JavaScript, TypeScript, and associated frameworks Experience with Containers, Docker, and Kubernetes Understanding of NoSQL databases Proficiency in test tools such as xUnit, Cypress, Selenium, Jest, and SoapUI In addition, proficiency in test tools like xUnit, Cypress, Selenium, Jest, and SoapUI, along with familiarity with technologies such as Containers, Docker, Kubernetes, and NoSQL, will be advantageous. More ❯

Principles SOLID principles, design patterns, TDD, BDD and DDD, Enterprise Architecture Patterns Frontend Technologies HTML, CSS, JavaScript, Typescript, React Experience with Unit and Integration Testing JUnit, Spock, Jest Experience with integration frameworks such as Apache Calling all tech enthusiasts! Are you a problem-solving, curious, and strategic Java Developer? Join us at Sidetrade, the leading global SaaS provider recognized by More ❯

DV clearance Experience with Java Experience working in an Agile/SaFeenvironment Working knowledge ofAWS, React/Javascript & other frontend technologies. Other useful skills include: Typescript, Node, Gitlab, Cypress, Jest, JEE, Wildfly, Microprofile, Openshift, Docker, Jenkins, RabbitMQ and Nifi The severity and urgency of this role cannot be pressed enough. If you hold current and live DV clearance, please apply More ❯

Security Groups, API Gateway, ALBs, KMS, Secrets Manager, Parameter Store, S3), Java 11+, Spring, JUnit. Proficiency in scripting languages such as PowerShell, Python. Knowledge in containerisation (Docker), Maven, Node.js, Jest, TypeScript, Test Automation, QA, Cucumber, Postgres. Desirable Skills: Experience in front-end technologies. Experience in using agile tools like Rally. ServiceNow tool experience. Project management experience. All of our opportunities More ❯

Knowledge and experience working with accessibility standards. Experience in developing and containerizing applications with Docker and using orchestration such as Kubernetes. Experience in using test tools such as Cypress, Jest, React Testing Library, or Selenium Web Driver. Able to understand the impact of functionality on customers/appreciate customer needs. Logical approach to problem-solving. Ability to manage complex tasks More ❯

for someone who: Is passionate about creating exceptional user interfaces, Has proven professional experience in UI development, Is proficient in TypeScript and React, Has experience with testing frameworks (e.g., Jest, React Testing Library), Understands and applies UX principles to create user-friendly interfaces, Is comfortable working with design tools like Figma or Sketch, Has a strong understanding of HTML5, CSS3 More ❯