> Markdown version of [/jobs/ext/4699428-reactjs-developer](https://www.wearedevelopers.com/jobs/ext/4699428-reactjs-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # ReactJS Developer - **Company:** S Three Management Services Limited - **Location:** London, United Kingdom - **Experience:** Expert - **Salary:** £130,000 - £182,000 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, JavaScript (Programming Language), Microsoft Excel, Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Microsoft Azure, Code Review, Data Visualization, Programming Tools, Scrum Methodology, Next.js, Responsive Web Design, Tailwind, ReactJS, Software Troubleshooting, Backend, Git, Containerization, Kubernetes, Information Technology, Front End Software Development, Software Version Control, Docker, Microservices - **Published:** November 13, 2026 - **Apply:** https://www.totaljobs.com/job/react-js-engineer/s-three-management-services-limited-job108315592 ## About the Role * 5-10 years of professional development experience * Strong proficiency in JavaScript and React * Experience building scalable, responsive user interfaces * Familiarity with modern development tools and version control (Git) * Bachelor's degree in Computer Science or equivalent professional experience * Ability to work effectively within an agile team environment * Authorization to work in the United Kingdom Nice-to-have * Experience with Next.js or other React-based frameworks * Knowledge of Tailwind CSS or similar utility-first styling approaches * Familiarity with CI/CD pipelines and containerization (Docker, Kubernetes) * Experience with cloud platforms (AWS, Azure, or GCP) * Agile or Scrum certification * Meta Front-End Developer Certificate or similar JavaScript certification * Proficiency with Excel or data visualization tools ## Description This is a contract role based in London, where you could contribute to the development and maintenance of React-based applications. You would be working within a hybrid setup, collaborating with cross-functional teams to build responsive, scalable front-end solutions. The work could involve partnering with backend services, integrating APIs, and working within agile delivery cycles to ship features that matter., * Developing and maintaining React components and applications using modern JavaScript practices * Writing clean, maintainable code and contributing to code reviews within the team * Collaborating with backend developers to integrate APIs and microservices * Working within agile sprints to deliver features on schedule * Troubleshooting and debugging front-end issues across browsers and devices * Contributing to the technical design and architecture decisions for UI features * Participating in knowledge-sharing and continuous improvement of development practices