3225 IT & Software Developer jobs in the UK
ReactJS Developer - Knutsford, UK
£40,000 - 65,000
Capgemini
Hattons Court, Manchester
£40,000 - 65,000
Requirements
Must:
- Strong proficiency in React and React Native development.
- Deep understanding of React component lifecycle and hooks.
- Solid experience with TypeScript in React projects.
- Familiarity with state management libraries and patterns.
- Knowledge of common React design patterns (e.g. container/presentational, HOCs, render props).
- Experience with linting tools and enforcing code quality.
- Proven testing experience with modern JavaScript testing frameworks.
- Awareness of security and accessibility best practices.
- Experience with performance profiling and optimisation in React apps.
- Hands-on experience with CI/CD tools and workflows.
- Experience publishing and maintaining shared libraries (e.g. npm packages, monorepos).
- Experience upgrading React and React Native applications across versions.
Desirable:
- Experience working in Agile teams.
- Experience developing and deploying iOS and Android apps using native technologies or other cross-platform frameworks (e.g. Flutter, Xamarin).
- Familiarity with mobile-specific challenges in cross-platform development.
- Contributions to open-source projects or technical blogs.
Responsibilities
- Develop and maintain web and mobile applications using React and React Native.
- Implement and optimise component lifecycle methods and React hooks for performance and maintainability.
- Manage application state using appropriate strategies (e.g. Context API, Redux, Zustand).
- Apply React design patterns to ensure clean, reusable, and scalable code.
- Integrate TypeScript for type safety and improved developer experience.
- Ensure code quality through linting tools (e.g. ESLint, Prettier) and enforce consistent coding standards.
- Write and maintain unit, integration, and end-to-end tests using libraries such as Jest, React Testing Library, Detox, or Cypress.
- Follow security best practices to protect user data and prevent vulnerabilities.
- Implement accessibility standards (WCAG) to ensure inclusive user experiences.
- Monitor and resolve performance issues using profiling tools and optimisation techniques.
- Contribute to CI/CD pipelines and automated testing strategies for continuous delivery.
- Collaborate on publishing and maintaining shared React libraries and components.
- Stay up to date with the latest versions of React and React Native, including experience upgrading across major releases.
Description
We are Capgemini, a global business and technology transformation partner, dedicated to helping organizations accelerate their transition to a digital and sustainable world. Our collaborative community spans over 340,000 team members in more than 50 countries. With over 55 years of heritage, we leverage our strengths in strategy, design, engineering, and market-leading capabilities in AI, cloud, and data to create impactful solutions. Join us in our Knutsford, UK office and be part of a team that unlocks the value of technology while delivering exceptional results for clients worldwide.
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You can find JavaScript Developer salaries in the UK here.
How many JavaScript Developer jobs are in the UK?
Currently, there are 3225 JavaScript openings. Check also: React jobs, Angular jobs, Vue jobs, TypeScript jobs, NodeJS jobs - all with salary brackets.
Is the UK a good place for JavaScript Developers?
The UK is one of the best countries to work as a JavaScript Engineer. It has a vibrant startup community, growing tech hubs and, most important: lots of interesting jobs for people who work in tech.
Which companies are hiring for JavaScript Developer jobs in the UK?
Bluefruit Software Limited, The Scouts Association, City of Lincoln Council, Mas & Pas Limited, Una Watch, FCDO Services, Accenture among others, are currently hiring for JavaScript roles in the UK.
The company with most openings is Capgemini as they are hiring for 180 different JavaScript Developer jobs in the UK. They are probably quite committed to find good JavaScript Developers.
The company with most openings is Capgemini as they are hiring for 180 different JavaScript Developer jobs in the UK. They are probably quite committed to find good JavaScript Developers.