13 of 13 Jest Jobs in the City of London

Toolkit Frontend HTML5, CSS3, JavaScript (ES6+), TypeScript React.js (preferred), Angular, or Vue.js Responsive design (Bootstrap, Tailwind), state management (Redux, Context API) Front-end testing (Jest, React Testing Library, Cypress) Backend C#, ASP.NET Core/.NET 6+ RESTful and GraphQL APIs Entity Framework Core, LINQ Authentication & authorisation (OAuth2, JWT, Azure ...

Participate in code reviews and maintain coding standards. Nice-to-Have Experience with TypeScript , Material UI , or Styled Components . Exposure to testing frameworks (Jest, Enzyme). Familiarity with CI/CD pipelines and cloud platforms (GCP). ...

usability, personalization, or automation. Deep understanding of JavaScript (ES6+) , React Hooks, and state management patterns (Redux, Zustand, or Recoil). Proficiency with testing frameworks (Jest, React Testing Library, Cypress) and performance profiling tools. Experience integrating RESTful and GraphQL APIs . Bachelor’s degree in Computer Science, Software Engineering, or related ...

assisted development — to speed up delivery and improve quality Tech You’ll Use Backend: Python, PostgreSQL, BigQuery, MySQL Frontend: TypeScript, React, styled-components Testing: Jest, React Testing Library, Cypress, pytest Cloud & Infra: AWS, GCP, ECS Fargate, Terraform, Docker CI/CD: GitHub Actions, automated pipelines No one is expected ...

GraphQL APIs (Apollo) . ● Implement WebSockets for real-time communication. ● Ensure API security using JWT, OAuth , and other authentication mechanisms. ● Perform unit testing with Jest or Mocha and API testing with Postman . ● Implement caching and messaging solutions with Redis (Pub/Sub) . ● Work with Docker & Kubernetes (K8s/ ...

making Tech Stack 🧱 They’re pragmatic about tools and use what works best. Current technologies include: 🗃 Python 🗄️ PostgreSQL, BigQuery, MySQL 🎨 TypeScript, React, styled-components 🔧 Jest, React Testing Library, Cypress, pytest ☁️ AWS, GCP 🚀 ECS Fargate, Docker, Terraform, GitHub Actions How They Work 👷 ♀️ Collaborate 💬 – Cross-functional, mission-driven squads with shared ownership ...

translate business requirements into technical solutions Nice to Have Experience with TypeScript Familiarity with server-side rendering Knowledge of testing frameworks such as Jest or Mocha Experience with CI/CD pipelines What’s on Offer High level of autonomy with trust-based engineering culture Supportive leadership with a focus ...

code quality are taken seriously — every single day Tech Stack Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar state management) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: WebSockets, performance profiling, custom charting (D3.js, Highcharts) What They’re Looking For Deep expertise with React and modern TypeScript/JavaScript Strong ...

stack TypeScript, React, Next.js and Node.js Strong expertise in designing and maintaining scalable, high-performance web applications A good understanding of databases Experience using Jest and Cypress If you’re a Senior Software Engineer (React/Node) looking to work in a tech for good organisation, please apply. ...

thoughtful stack, which includes: Python • TypeScript • React • PostgreSQL • BigQuery • MySQL • Docker • Terraform • AWS • GCP • ECS Fargate Plus a strong testing culture powered by: Jest • Cypress • pytest • React Testing Library ...

translate complex, ambiguous problems into elegant, scalable solutions. Tech Ecosystem React · TypeScript · Vite · Next.js · WebAssembly (DuckDB, WebGPU) · D3/visx · Storybook · Tailwind CSS · Jest · Cypress · Playwright What You Bring 8+ years building and evolving large-scale web applications. Proven track record in front-end architecture (modular codebases, micro-frontends, design ...

work collaboratively. Desirable: Experience with BDD/TDD methodologies. Familiarity with API testing and tools such as Postman. GraphQL Knowledge of testing frameworks like Jest or Mocha. What We Offer: A collaborative and supportive work environment. Flexible working arrangements (remote or hybrid). Career development opportunities and training support. ...

Contribute to the overall architecture and design of the technology created/maintained by the delivery team. Develop Web Trading Applications using ReactJS, Cypress, Jest, React Testing Library, Jenkins, React Hooks Develop solutions to a high standard that is maintainable, testable and meets the requirement’s acceptance criteria. Adhere ...