26 to 50 of 175 Permanent Jest Jobs

and Node, Java, and with the use of IaC tools such as Terraform and AWS CloudFormation. 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 ❯

requirements. Integrate and optimize REST APIs for data retrieval and manipulation. Develop reusable components and ensure consistency across applications. Write and maintain high-quality, testable code with tools like Jest and Playwright. Perform data wrangling tasks and contribute to data analysis processes where necessary. Troubleshoot, debug, and enhance existing applications to improve performance and reliability. Why Join Us? This role … that values innovation, learning, and collaboration. Required Skills & Experience Web Development: Proficient in React and TypeScript. Data Visualization: Experience with libraries such as Highcharts and D3.js. Testing: Familiarity with Jest and Playwright or similar testing frameworks. REST APIs: Strong understanding of integrating and working with RESTful services. Data Skills: Experience in data wrangling/analysis (e.g., using SQL or Python More ❯

and JavaScript Node.js React Docker and containerized development workflows Git and version control NoSQL databases - MongoDB and Redis AWS services - EC2, Lambda, S3, and CloudWatch RESTful APIs Testing frameworks - Jest , Mocha , or similar CI/CD pipelines Start-up background Salary They offer a strong all round package with a base salary of up to £60,000 with some added More ❯

and JavaScript Node.js React Docker and containerized development workflows Git and version control NoSQL databases - MongoDB and Redis AWS services - EC2, Lambda, S3, and CloudWatch RESTful APIs Testing frameworks - Jest , Mocha , or similar CI/CD pipelines Start up background Salary They offer a base salary of £50,000 and £60,000 Equity. Location This client has an office in More ❯

and cross-browser compatibility are required May include database knowledge in MongoDB Experience with modern web/UI development tools and techniques: Node, Webpack, Grunt/Gulp, GIT, Axios, Jest Client-side templating: mustache.js, handlebars.js, panni.js, and dust.js Proficiency using standard desktop applications such as MS Suite and flowcharting tools such as Visio Proficiency using debugging tools such as; Advanced More ❯

Actions), Observability (AWS, Grafana). Development tools: GitHub, Jira, Notion, ChatGPT, Gemini, LangChain, AI-native IDE's (Cursor, JetBrains), LLM-powered internal tools. Test automation: Cypress (E2E), Postman (API), Jest (frontend unit), PHPUnit (backend unit), JUnit (Android), XCTest (iOS). WHAT WE OFFER YOU A front-row seat in a fast scaling, early stage startup. Working on cutting edge problems More ❯

understanding of web accessibility, responsive design, and usability principles. Experience working with other teams, including backend, devops, and product stakeholders. Familiarity with CI/CD pipelines, testing frameworks (e.g., Jest, React Testing Library), and version control using Git. Experience with advanced state management solutions (e.g., Redux, Zustand, Recoil). Experience integrating with GraphQL and RESTful APIs. An understanding or curiosity More ❯

diverse group of people with different areas of expertise. You are comfortably organized amongst chaos. Be familiar with our tech stack: TypeScript, React, styled-component Python PostgreSQL, BigQuery, MySQL Jest, React Testing Library, Cypress, pytes AWS, GCP Kubernetes, Docker, Terraform, GitHub, CircleCI Next.js (Preferred) AR/VR (Preferred) Embrace differences and know that when we can be ourselves at work More ❯

AWS, Grafana), OpenAI in Azure. Development tools: GitHub, Jira, Notion, ChatGPT, Gemini, LangChain, AI-native IDE's (Cursor, JetBrains), LLM-powered internal tools. Test automation: Cypress (E2E), Postman (API), Jest (frontend unit), PHPUnit (backend unit), JUnit (Android), XCTest (iOS). WHAT WE OFFER YOU A front-row seat in a fast scaling, early stage startup. Opportunity to define the ML More ❯

Full Stack Engineer Location: Hybrid/Onsite Washington, DC Clearance: Active TS/SCI with CI Polygraph Employment Type: Full-time, salaried, with full benefits About the Company: Join a mission-driven tech innovator at the forefront of national security More ❯

preprocessors like SASS or LESS. - Familiarity with RESTful APIs and asynchronous coding concepts. - Familiarity with design tools such as Figma, Adobe XD, or Sketch. - Knowledge of testing frameworks like Jest or Cypress. Preferred Qualifications: - Experience with TypeScript. - Strong attention to detail and problem-solving abilities. More ❯

technologies such as Tomcat, Nodejs, Web Services, or SSL. 8. (Mandatory) Demonstrated hands-on experience developing JUnit and Jasmine tests. 9. (Mandatory) Demonstrated experience with testing platforms such as Jest or Karma. 10. (Mandatory) Demonstrated hands-on experience working with DevOps tools such as Git, Jenkins, or Nexus 11. (Desired) Demonstrated recent experience with the Sponsor's Lean Agile methodology. 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 Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy. 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 Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy. More ❯

inclusion, and respect Required qualifications, capabilities, and skills Formal training or certification on software engineering concepts and applied experience Advanced knowledge on front end technologies - Typescript, AngularJS, React, Vite, Jest, D3 and related libraries/Frameworks Hands-on experience managing a book of work independently and engaging directly with stakeholders and product owners Hands-on experience with UX best practices More ❯

high-quality, reusable code Optimise application performance and scalability across web and mobile platforms Collaborate cross-functionally with backend engineers, designers, and stakeholders Implement and maintain testing frameworks (e.g., Jest, React Testing Library) Champion front-end standards and code quality best practices Help evolve our design system and contribute to front-end architecture decisions What We're Looking For 5+ More ❯

you ahead of the curve .NET (8) JavaScript (ES6+)/TypeScript Node JS Azure Services Application monitoring practices, such as metrics, tracing and logging Testing frameworks (e.g. Playwright, XUnit, Jest, Enzyme, React Testing Library & Nightwatch) Building software with a test-first approach (TDD, BDD) Experience with build and deployment pipelines (CI/CD) using Azure DevOps Knowledge of Modern Architecture More ❯

You must have: At least 3 years commercial experience in software development, with one or more of the following technologies: Java, Spring Boot, Maven, GIT, Junit, MySQL, React, TypeScript, Jest, Microservices, Kubernetes, AWS 3+ years' experience in a software development position as part of a development team, writing in Java. 3+ years' experience working with databases. Proven experience of software More ❯

of web applications. Experience applying SRE principles to frontend and web-based systems: SLIs/SLOs, performance budgets, error tracking, and synthetic testing. Experience with testing frameworks such as Jest, Vitest, Playwright, and supporting reliable deployments. Proficient with version control using GIT and delivery via Agile methodologies. Working knowledge of cloud platform services (Azure/GCP) and relevant networking and More ❯

automation, CI & deployment tooling such as Git & Actions 2-4 years experience with frameworks and languages: React, Typescript, State Management (Zustand/Redux) You are already Unit Testing with Jest or React-Testing-LIbrary You are aware of the impact of performance & accessibility and understand techniques for improving load and render times. You will have as much passion in HOW 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 ❯

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 ❯