226 to 250 of 365 Jest Jobs

. Hands-on experience with version control tools such as Git. Familiarity with containerized environments (Docker) and serverless framework is a plus. Good knowledge of unit testing frameworks like Jest, Mocha, or similar. Familiarity with GraphQL. Experience working in Agile/Scrum development environments. Exposure to monitoring tools like CloudWatch, Sentry, or Datadog. Experience with logging and performance tuning. Compensation 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 ❯

to improve both speed and scale. This role involves working with a wide range of infrastructures, languages, and technologies. Our tech stack includes: Frontend: Typescript, React, NextJS, TailwindCSS, Cypress, Jest Backend: Python, ElasticSearch, Postgres, Redis, AWS/Azure/GCP, Cloudformation & Terraform, K8s, EKS This is a hybrid role, with a mandatory attendance of 2 days a week in the More ❯

web performance, accessibility, and UX principles. Solid foundation in Computer Science fundamentals. Comfortable working in a fast-paced, collaborative environment. Nice to have: Modern front-end testing tools like Jest and React Testing Library. Node.js. Modern front-end build pipelines and tools, such as Babel, Webpack. Agile/Scrum methodologies. CMS platforms like Strapi. Internationalisation. What We Offer At MrQ More ❯

test automation and functional testing. - Strong proficiency in Playwright with JavaScript/TypeScript. - Experience in testing single-page applications (SPAs) and dynamic web apps. - Hands-on experience with Mocha, Jest, or any other test framework. - Expertise in Git, Jenkins, Azure DevOps, or other CI/CD tools. - Strong understanding of API testing (Postman, REST Assured, Playwright API). - Knowledge of 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 ❯

complex problems). Excellent attention to detail. An ability to explain technical concepts to non-technical audiences. Preferred Skills : NextJS (app router, static rendering, turbo, mono-repo, Vercel) Typescript Jest Storybook (and Storybook testing) Playwright Contentful Algolia Datadog (or similar monitoring tools) GitHub actions Akamai GraphQL Benefits: 33 days annual leave for full time employees (25 days holiday + More ❯

complex problems). Excellent attention to detail. An ability to explain technical concepts to non-technical audiences. Preferred Skills : NextJS (app router, static rendering, turbo, mono-repo, Vercel) Typescript Jest Storybook (and Storybook testing) Playwright Contentful Algolia Datadog (or similar monitoring tools) GitHub actions Akamai GraphQL Benefits: 33 days annual leave for full time employees (25 days holiday + More ❯

complex problems). Excellent attention to detail. An ability to explain technical concepts to non-technical audiences. Useful Experience: NextJS (app router, static rendering, turbo, mono-repo, Vercel) Typescript Jest Storybook (and Storybook testing) Playwright Contentful Algolia Datadog (or similar monitoring tools) GitHub actions Akamai GraphQL Employee Benefits: 33 days annual leave for full time employees (25 days holiday + More ❯

mobile development frameworks like React 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 Exceptional communication skills to interact More ❯

Web related protocols and technologies such as Tomcat, Nodejs, Web Services, or SSL. • Demonstrated hands-on experience developing JUnit and Jasmine tests. • Demonstrated experience with testing platforms such as Jest or Karma. • Demonstrated hands-on experience working with DevOps tools such as Git, Jenkins, or Nexus Optional Requirements: • Demonstrated recent experience with the Customer's suite of applications providing repository More ❯

deployment of Circadia’s services and products (backend services, Android, iOS, React apps). Write clean, testable code with a commitment to maintaining high coding standards through comprehensive testing (Jest, PyTest, JUnit, etc.). Attributes: Need to Haves: C++ - Strong understanding of multithreading, asynchronous programming, network protocols. Advanced knowledge of Python and related frameworks (FastAPI, NumPy, Pandas, Pydantic) including multithreading More ❯

attention to detail. An ability to explain technical concepts to non-technical audiences. Preferred Skills : NextJS/Vercel (app router, caching, speed-insights, static rendering, turbo, mono-repo) Typescript Jest Storybook (and Storybook testing) Playwright Contentful (or similar headless CMSs) Algolia Datadog (or similar monitoring tools, structuring logs, setting up monitors) GitHub actions HTTP (headers, status codes, payloads) Akamai GraphQL More ❯

attention to detail. An ability to explain technical concepts to non-technical audiences. Preferred Skills : NextJS/Vercel (app router, caching, speed-insights, static rendering, turbo, mono-repo) Typescript Jest Storybook (and Storybook testing) Playwright Contentful (or similar headless CMSs) Algolia Datadog (or similar monitoring tools, structuring logs, setting up monitors) GitHub actions HTTP (headers, status codes, payloads) Akamai GraphQL More ❯

wider business. Tech stack We're pragmatic about our technology choices. These are some of the things we use now: TypeScript, React, styled-components Java & Python PostgreSQL, BigQuery, MySQL Jest, React Testing Library, Cypress, pytest AWS, GCP ECS Fargate, Docker, Terraform, GitHub Actions How we expect you to work We expect you to work in these ways, as well as More ❯

mind. Have experience with SaaS products running 24/7 on a major cloud vendor. Solid understanding of RESTful APIs, microservices architecture, and asynchronous programming. Experience with testing frameworks (Jest, Mocha, Chai, Storybook, React Testing Library) and automated testing methodologies (Cypress). Knowledge of containerization technologies (Docker, Kubernetes) Total Rewards Our workforce deserves fair and competitive pay that meets them More ❯

projects. Technology We're pragmatic about our technology choices. These are some of the things we use at the moment: TypeScript, React, styled-components Python, NodeJS ️ PostgreSQL, BigQuery, MySQL Jest, React Testing Library, Cypress, pytest ️ AWS, GCP Kubernetes, Docker, Terraform, GitHub, CircleCI How we expect you to work ️ We expect you to work in these ways, as well as encouraging 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 ❯

in Java development. Candidates should have strong knowledge of Java 11, Spring, and AWS serverless architecture. Familiarity with AWS services such as Lambda, Cucumber, DevOps, Docker, JIRA, JUnit, Java, Jest, PostgreSQL, Security, Serverless, ServiceNow, Spring, TypeScript, Web, microservices, and NodeJS is preferred. Additional Details This is a contract position based in London with a hybrid work model, requiring 2 days More ❯

Required Skills Hands-on experience with containerization using Docker. Familiarity with build tools and languages such as Maven, Node.js, and TypeScript. Exposure to testing frameworks and tools (e.g., Jest, Cucumber). A good understanding of relational databases, particularly PostgreSQL. Salary £130,000 - £132,600 per year Requirements A minimum of 10 years' experience in software development. Prior experience as a More ❯

JavaScript/TypeScript. Solid experience with a modern framework - Vue (our main stack) or React, and styling utilities such as Tailwind CSS. Comfort writing unit/component tests (e.g., Jest, Vitest, Testing Library). Additional Skills Knowledge of AWS (our cloud of choice) or another major cloud platform. Exposure to other languages such as Python or Scala. Interest in performance More ❯

principal role. Technical Proficiency: Expertise in React.js and its core principles, including state management (e.g., Redux, Context API), hooks, and lifecycle methods. Testing: Proficiency in testing frameworks such as Jest, React Testing Library, and end-to-end testing tools. Build Tools: Familiarity with modern build pipelines and tools. Version Control: Experience with Git and collaborative workflows. Soft Skills: Excellent communication … and Node.js internals. Demonstrable hands-on experience using modern front-end build tools and bundlers (Webpack, Rollup, Vite). Comprehensive experience with modern testing tools and frameworks, such as Jest, Vitest, React Testing Library, Playwright, or Cypress, including writing robust unit, integration, and end-to-end tests, as well as establishing best practices for test coverage and continuous integration pipelines. More ❯

with solid experience and understanding of web development (Frontend UX and deeper application development) and ad tech. The tech stack includes: HTML5 and CSS3 Mocha, Karma, Chai, Sinon, Nightwatch, Jest Drone CI, Docker Google Ad Manager (formerly Doubleclick for Publishers, DfP) Escenic Java-based CMS Other things we’d like to see Unit and integration testing experience (TDD and BDD More ❯

C# JavaScript frameworks: Angular, Vue.js, or React MySQL Git or similar source control tools Experience with logging/monitoring tools: Elasticsearch, Rollbar, Sentry, Jira Unit testing frameworks: xUnit, NUnit, Jest, or Jasmine Agile development methodologies Desirable Experience: AWS Terraform Benefits: Competitive base salary Flexible remote working Exposure to exciting, bespoke projects Ongoing learning and development opportunities Clear career progression paths More ❯

of the systems Requirements as a Backend Developer: 4+ years backend experience with Nodejs, microservices & REST APIs (bonus if you have Kubernetes and Mongo) Strong unit testing background with JEST You’ve pushed your own code out to production Be an enthusiastic developer. Someone who can come in and share ideas, support the team but most importantly be able to More ❯