1 to 25 of 31 Permanent Jest Jobs in London

Cloud/Spring Data JPA/Spring Boot Microservices. Should have troubleshooting skills using debuggers, logs, etc. Strong understanding of test‐driven development using Jest, Cypress, JavaScript, JUnit, Mockito. Experience with public clouds like AWS, GCP will be added advantage. Experience with OpenShift, Docker and Kubernetes. Understanding of build ...

relevant enterprise technologies such as Java or .NET. 7+ years of experience designing and developing complex web services using REST, TypeScript, JavaScript/NodeJS, Jest, Java, Python, or related technologies. 5+ years of experience designing and developing web applications using HTML5, CSS, and modern UI frameworks such as React ...

based architecture and design systems. Must have experience using continuous delivery toolsets and following Test-Driven Development (TDD) practices with test automation frameworks (e.g., Jest), experience with Git and CI/CD, experience with Mulesoft is essential. Anypoint Studio, Anypoint Exchange, API Manager, Runtime Manager. Experienced in developing integrations using ...

problem‐solving skills. Proactive communicator with owned assignments. Ability to manage time effectively and meet realistic deadlines. Experience with testing frameworks such as Jest or RTL. Understanding of build tools such as Webpack, Vite, Parcel. Understanding of Pre‐processors such as SASS, CSS Modules, JS Compilation. Understanding of CI/ ...

Cloud/Spring Data JPA/Spring Boot Microservices.* Should have troubleshooting skills using debuggers, logs, etc. Strong understanding of test-driven development using Jest, Cypress, Java script, Junit, Mockito.* Experience with Public clouds like AWS, GCP will be added advantage.* Experience with OpenShift, Docker and Kubernetes.* Understanding of build ...

production Good DevOps and CI/CD knowledge Docker experience Commercial cloud experience with AWS, Azure or GCP Strong automated testing experience, including Jest/Mocha and ideally Cypress, BrowserStack or similar Excellent JavaScript fundamentals Strong communication and problem-solving skills Experience with TypeScript, SaaS/startups, generative AI APIs ...

TypeScript (Node.js, React), MongoDB & Postgres. We use AWS for our cloud services and our infrastructure is managed with Kubernetes and Terraform. We test with Jest and Cypress, and monitor our systems with Prometheus, Grafana and Sentry. We embrace building with AI to help us deliver faster and better ...

YAML, Terraform, CloudFormation, Bash/Zsh, and modern tooling (VSCode, GitHub, Vite, Rollup, tsx, npm). Proficiency with unit, integration, and E2E testing (Vitest, Jest, Cypress, Playwright). Skilled in mocking, dependency isolation, refactoring, and peer review. Understanding of accessibility, performance, load, and security testing. Experience building and maintaining ...

Nest.js and TypeScript. Experience with PostgreSQL and REST APIs. Exposure to Microsoft Azure and CI/CD pipelines. Knowledge of testing frameworks such as Jest, Playwright, Cypress or React Testing Library. A collaborative approach with excellent communication skills. Experience mentoring developers or leading technical initiatives. Nice to have GraphQL .NET ...

scalable application patterns. Experience integrating RESTful APIs and backend services. Experience building performant, accessible and responsive user interfaces. Strong experience with automated frontend testing (Jest, React Testing Library, Playwright or Cypress). Experience with CI/CD pipelines and cloud‐hosted frontend deployments. Excellent communication skills with the ability ...

team. This is non‐negotiable. Rigorous engineering standards – fluency with Git-based workflows, trunk-based development, CI/CD (ideally GitHub Actions), comprehensive testing (Jest, React Testing Library, Playwright), and a genuine commitment to accessibility, performance and secure-by-default coding. Technical leadership without the title – a track record ...

such as npm/pnpm). Experience with automated testing, such as end-to-end tests (Playwright, Selenium), UI/Component tests (e.g. using Jest), or snapshot tests. STEM (technical) degree. What we Offer Office-based role in West London, four days a week with flexible start and finish times ...

Spring Boot in an AWS (Amazon Web Services) environment. Front‐end knowledge of React, Redux, TypeScript, Node.js, Next.js and SCSS, and testing with Jest, Enzyme, React testing library and Cypress. Orchestration of test and deployment processes using CircleCI with GitHub and Maven. Experience with Contentful and Elastic Path as content ...

client-facing web applications. Backend Stack: Proficient with Python, FastAPI, PostgreSQL, Redis , and designing secure REST APIs . Frontend Stack: Proficient with TypeScript, React, Jest , and Storybook . Experience with Micro Frontends (MFEs) is a major plus. DevOps & Cloud: Hands-on experience with Docker, Kubernetes, Terraform , and AWS . Foundations ...

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 ...

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 ...

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 ...

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 ...

regulated environments Our tech stack Frontend: TypeScript, React, React Native Backend: PHP (Symfony), Kotlin, AWS, Postgres, RabbitMQ, Docker, Kubernetes Testing: PHPUnit, Behat, JUnit, Kotest, Jest, Maestro, K6 Tooling and observability: GitHub, GitHub Actions, Jira, Confluence, Datadog, Sentry, Grafana Why join? See your work matter: Our products are used by millions ...

support business processes Technologies - Familiarity with TypeScript, Cordova, Native development for Android and/or iOS, RAIL Performance, PWA, SSR, Node, Cypress and Jest Full Stack - Full‐stack experience (double bonus points if Ruby or Elixir!) This list is not exhaustive and there may be other activities you are required ...

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/ ...

Below is a snippet of the job description. To read the full text, please click on the "Apply Now" link. Requirements Java Java Springboot JEST (good to have) TypeScript (good to have) AWS services knowledge (Lambda, Kinesis Stream, SQS, Eventbridge) BDD framework cucumber (good to have) CI... 108 E 16th ...

Below is a snippet of the job description. To read the full text, please click on the "Apply Now" link. Requirements Java Java Springboot JEST (good to have) TypeScript (good to have) AWS services knowledge (Lambda, Kinesis Stream, SQS, Eventbridge) BDD framework cucumber (good to have) CI... 108 E 16th ...

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 ...

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 ...