76 to 91 of 91 Jest Jobs in the UK

mobile code Build and maintain design systems and shared component libraries Write unit, integration and end-to-end tests using tools like Cypress, Jest and React Testing Library Improve performance, accessibility and mobile-first UX across all platforms Use monitoring tools to troubleshoot live issues Leadership responsibilities: Turn business needs … building large-scale, high-performance frontend or mobile applications Strong understanding of accessibility (WCAG), responsive design and performance optimisation Skilled with automated testing frameworks (Jest, Cypress, React Testing Library) Background in SaaS platforms or high-traffic consumer apps is useful Experience with CI/CD pipelines (GitLab is a bonus ...

mobile code Build and maintain design systems and shared component libraries Write unit, integration and end-to-end tests using tools like Cypress, Jest and React Testing Library Improve performance, accessibility and mobile-first UX across all platforms Use monitoring tools to troubleshoot live issues Leadership responsibilities: Turn business needs … building large-scale, high-performance frontend or mobile applications Strong understanding of accessibility (WCAG), responsive design and performance optimisation Skilled with automated testing frameworks (Jest, Cypress, React Testing Library) Background in SaaS platforms or high-traffic consumer apps is useful Experience with CI/CD pipelines (GitLab is a bonus ...

mobile code Build and maintain design systems and shared component libraries Write unit, integration and end-to-end tests using tools like Cypress, Jest and React Testing Library Improve performance, accessibility and mobile-first UX across all platforms Use monitoring tools to troubleshoot live issues Leadership responsibilities: Turn business needs … building large-scale, high-performance frontend or mobile applications Strong understanding of accessibility (WCAG), responsive design and performance optimisation Skilled with automated testing frameworks (Jest, Cypress, React Testing Library) Background in SaaS platforms or high-traffic consumer apps is useful Experience with CI/CD pipelines (GitLab is a bonus ...

mobile code Build and maintain design systems and shared component libraries Write unit, integration and end-to-end tests using tools like Cypress, Jest and React Testing Library Improve performance, accessibility and mobile-first UX across all platforms Use monitoring tools to troubleshoot live issues Leadership responsibilities: Turn business needs … building large-scale, high-performance frontend or mobile applications Strong understanding of accessibility (WCAG), responsive design and performance optimisation Skilled with automated testing frameworks (Jest, Cypress, React Testing Library) Background in SaaS platforms or high-traffic consumer apps is useful Experience with CI/CD pipelines (GitLab is a bonus ...

mobile code Build and maintain design systems and shared component libraries Write unit, integration and end-to-end tests using tools like Cypress, Jest and React Testing Library Improve performance, accessibility and mobile-first UX across all platforms Use monitoring tools to troubleshoot live issues Leadership responsibilities: Turn business needs … building large-scale, high-performance frontend or mobile applications Strong understanding of accessibility (WCAG), responsive design and performance optimisation Skilled with automated testing frameworks (Jest, Cypress, React Testing Library) Background in SaaS platforms or high-traffic consumer apps is useful Experience with CI/CD pipelines (GitLab is a bonus ...

mobile code Build and maintain design systems and shared component libraries Write unit, integration and end-to-end tests using tools like Cypress, Jest and React Testing Library Improve performance, accessibility and mobile-first UX across all platforms Use monitoring tools to troubleshoot live issues Leadership responsibilities: Turn business needs … building large-scale, high-performance frontend or mobile applications Strong understanding of accessibility (WCAG), responsive design and performance optimisation Skilled with automated testing frameworks (Jest, Cypress, React Testing Library) Background in SaaS platforms or high-traffic consumer apps is useful Experience with CI/CD pipelines (GitLab is a bonus ...

mobile code Build and maintain design systems and shared component libraries Write unit, integration and end-to-end tests using tools like Cypress, Jest and React Testing Library Improve performance, accessibility and mobile-first UX across all platforms Use monitoring tools to troubleshoot live issues Leadership responsibilities: Turn business needs … building large-scale, high-performance frontend or mobile applications Strong understanding of accessibility (WCAG), responsive design and performance optimisation Skilled with automated testing frameworks (Jest, Cypress, React Testing Library) Background in SaaS platforms or high-traffic consumer apps is useful Experience with CI/CD pipelines (GitLab is a bonus ...

mobile code Build and maintain design systems and shared component libraries Write unit, integration and end-to-end tests using tools like Cypress, Jest and React Testing Library Improve performance, accessibility and mobile-first UX across all platforms Use monitoring tools to troubleshoot live issues Leadership responsibilities: Turn business needs … building large-scale, high-performance frontend or mobile applications Strong understanding of accessibility (WCAG), responsive design and performance optimisation Skilled with automated testing frameworks (Jest, Cypress, React Testing Library) Background in SaaS platforms or high-traffic consumer apps is useful Experience with CI/CD pipelines (GitLab is a bonus ...

mobile code Build and maintain design systems and shared component libraries Write unit, integration and end-to-end tests using tools like Cypress, Jest and React Testing Library Improve performance, accessibility and mobile-first UX across all platforms Use monitoring tools to troubleshoot live issues Leadership responsibilities: Turn business needs … building large-scale, high-performance frontend or mobile applications Strong understanding of accessibility (WCAG), responsive design and performance optimisation Skilled with automated testing frameworks (Jest, Cypress, React Testing Library) Background in SaaS platforms or high-traffic consumer apps is useful Experience with CI/CD pipelines (GitLab is a bonus ...

Engage in continuous learning by staying updated on emerging technologies relevant to backend development. Support efforts towards automation by implementing reliable testing frameworks like Jest or Cypress. What you bring: Your proven experience as a Java Developer will include delivering robust backend solutions using modern frameworks while integrating seamlessly with … within cloud environments. Exposure to cloud platforms-Google Cloud Platform preferred; AWS or Azure experience also valued. Experience with automated testing tools such as Jest, Cypress, or Pact to ensure code reliability through comprehensive test coverage. Commitment to writing maintainable code that adheres to best practices in software engineering. Ability ...

initiatives that help us scale our UK and US based products as we continue to grow. Tech stack Mobile Apps Typescript, React Native, GraphQL, Jest, React Testing Library, Maestro, MobX Web Typescript, React, NextJS, SCSS, Jest, React Testing Library, Cypress, Redux Backend Kotlin, PHP 7/8 (Symfony), AWS, Postgres ...

Frontend Application using Modern Javascript frameworks like React/Vue/Svelte/Angular Writing unit tests with modern front end testing frameworks like Jest Experience of consuming and modifying CI/CD pipelines Experience working with API of varying types and integrating with backend data Experience of working with … JavaScript Experience developing Frontend Application using Modern Javascript frameworks like React/Vus/Svelte Writing unit tests Modern front end testing frameworks like Jest Experience working with API of varying types and integrating with backend data Desirable Experience of Docker Experience of working in a Continuous Delivery or Deployment ...

computer science, engineering, or related field (or equivalent work experience Extensive experience as a Jutro, React developer with a strong emphasis on Microfrontends (MFE), Jest testing, cache management, performance optimization, and persona management. Proven track record of leading and mentoring development teams in React-based projects. Proficiency in JavaScript, HTML … writing modular scalable style sheets. Expertise in Micro Frontends (MFE) architecture and implementation. Strong understanding of caching strategies and cache management techniques. Experience in Jest, Mocha or similar testing frameworks for unit testing and test automation. Deep knowledge of performance optimization techniques for web applications. Familiarity with persona management concepts ...

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of ...

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of ...

refine schemas for PostgreSQL and MongoDB to support secure, efficient payment processing. Quality & testing: Write clean, maintainable code and apply solid testing practices (e.g. Jest ) to ensure reliability and security. Scalability & performance: Contribute to scalable, resilient backend infrastructure that can handle high transaction volumes. Collaboration: Work closely with product, design … . Solid understanding of API design and integration (REST, auth, error handling, etc.). Knowledge of software testing principles and experience with frameworks like Jest . Familiarity with microservices architecture is a strong plus. Relevant degree (Computer Science, Software Engineering, etc.) or equivalent practical/bootcamp experience. Why join Work ...