React JS Developer or Lead Full Time NEW

CapGemini
Choose a partner with intimate knowledge of your industry and first-hand experience of defining its future.Select your locationSelect your locationIndustriesChoose a partner with intimate knowledge of your industry and first-hand experience of defining its future.London# React JS Developer or Lead ReactJS Developer – Knutsford UK Get The Future You Want! Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive worldWe are seeking a skilled and passionate UI Developer with strong front-end development experience to join our team. The ideal candidate will have hands-on expertise in modern UI technologies and frameworks, with a keen eye for detail and a commitment to delivering accessible, high-performance web applications. Your Role Develop and maintain responsive user interfaces using JavaScript , jQuery , HTML5 , CSS3 , and ReactJS . Implement and optimize styles using CSS preprocessors such as SASS or LESS. Work with JavaScript frameworks including Node.js to build scalable front-end solutions. Integrate APIs and handle asynchronous data using AJAX and JSON . Ensure compliance with accessibility standards and best practices. Apply Test-Driven Development (TDD) principles and write automated unit tests using mock object frameworks. Collaborate with cross-functional teams to ensure seamless integration and deployment. Utilize SCM tools like Git and Perforce for version control and collaboration. Leverage tools such as SonarQube , Grunt/Gulp , and npm for code quality and build automation. Conduct JavaScript unit testing to ensure code reliability and maintainability. Optimize network performance and front-end load times for enhanced user experience. Your Profile Strong proficiency in JavaScript , HTML5 , CSS3 , and ReactJS . Experience with CSS preprocessors (e.g., SASS, LESS). Solid understanding of Node.js and modern JS frameworks. Familiarity with AJAX , JSON , and RESTful APIs. Knowledge of accessibility standards (WCAG, ARIA). Experience with unit testing frameworks and TDD methodologies. Proficiency in Git , Perforce , and build tools like Grunt , Gulp , and npm . Understanding of network performance optimization techniques. About Capgemini Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world while creating tangible impact for enterprises and society. It is a responsible and diverse group of 350,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market-leading capabilities in AI, cloud, and data, combined with its deep industry expertise and partner ecosystem. The Group reported 2023 global revenues of €22.5 billion. Role Overview: Experience levelExperienced ProfessionalsLocationLondon