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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Full Stack Developer - **Company:** Capgemini - **Location:** London, UK (Remote available) - **Experience:** Expert - **Salary:** £55,099.0 - **Contract:** Permanent contract - **Skills:** HTML, JavaScript (Programming Language), Agile Methodology, Artificial Intelligence, Bootstrap (Software), Cascading Style Sheets (CSS), Software Quality, Programming Tools, Mobile Application Software, Information Systems Security Architecture Professional, Node.Js, Scrum Methodology, TypeScript, Web Application Frameworks, Test-Driven Development (TDD), GitHub Copilot, ReactJS, Express.js, Backend, Vue.js, AngularJS, Production Code, Front End Software Development, NestJS - **Published:** August 20, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5847551821 ## About the Role * Proven experience in full stack JavaScript development, with a strong focus on Node.js and server-side development. * Experience using AI-assisted development tools (e.g. GitHub Copilot) to enhance productivity and code quality. * Experience of at least one leading Node framework (Express.js, Nest.js, Hapi.js) * Expertise in at least one modern front-end framework (Nest.js, Remix.js). * A track record in a lead or senior developer role, with experience of mentoring and guiding development teams. ## Description We are seeking a highly skilled and experienced Senior Full Stack JavaScript Developer to join our Experience Engineering team. In this role, you will lead the development of innovative web and mobile applications, ensuring high performance, scalability, and maintainability. You will work closely with cross-functional teams to deliver engaging solutions that meet our clients' needs. Our team is at the forefront of developing cutting-edge technologies and solutions that ensure national security and defence. You will have the opportunity to work on and lead groundbreaking projects that involve the latest advancements in artificial intelligence, cybersecurity, and autonomous systems. Our commitment to innovation means you will be part of a team that is constantly pushing the boundaries of what is possible, making a real impact on the future of defence. Hybrid working: The places that you work from day to day will vary according to your role, your needs, and those of the business; it will be a blend of Company offices, client sites, and your home; noting that you will be unable to work at home 100% of the time. If you are successfully offered this position, you will go through a series of pre-employment checks, including: identity, nationality (single or dual) or immigration status, employment history going back 3 continuous years, and unspent criminal record check (known as Disclosure and Barring Service) Your role * Provide technical leadership and mentorship to a team of developers, guiding them through collaboration, innovation and facilitation to ensure best practices and high-quality code. * Design, develop, and maintain both front-end components of web and mobile applications using React, Angular, TypeScript, Bootstrap 5, HTML, CSS * Apply Test Driven Development (TDD) practices using tools such as Karma to ensure robust and reliable code. * Leverage AI-augmented development tools like GitHub Copilot to accelerate coding, improve consistency, and reduce boilerplate. * Collaborate with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to existing systems. * Lead and participate in agile development processes, including sprint planning, daily stand-ups, and retrospectives. You can bring your whole self to work. At Capgemini, stiving for equity, diversity and inclusion is part of everyday life, and will be part of your working reality. We have built an inclusive and welcoming environment, for everyone., * Design, develop, and maintain both front-end and back-end components of web and mobile applications using JavaScript, Node.js, and modern frameworks and libraries such as React, Angular, or Vue.js. ## Related Videos - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Lessons learned from building a thriving Vue.js SaaS application](https://www.wearedevelopers.com/videos/1666-lessons-learned-from-building-a-thriving-vue-js-saas-application) - [Web development best practices in 2021](https://www.wearedevelopers.com/videos/280-web-development-best-practices-in-2021) - [Next, Nest, Nuxt… Nust?](https://www.wearedevelopers.com/videos/421-next-nest-nuxt-nust) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. 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