Front-End Developer (React) – Lille

About the role

Tata Consultancy Services is looking for a motivated Front‑End Developer specialized in React to join its Engineering team in Lille, France. You will be responsible for designing, building, and maintaining high‑performance web applications that provide a seamless experience for business users.

Key responsibilities

• Provide support and enhancements for existing ReactJS applications, handling incidents and service requests.
• Analyse, debug and resolve functional and technical issues related to React components, state management and API integrations.
• Monitor application performance, identify root causes of recurring UI problems and implement corrective actions.
• Collaborate with business and technical stakeholders to gather requirements and deliver timely solutions.
• Maintain up‑to‑date technical documentation, including UI design specifications and deployment guides.
• Ensure code and configurations comply with security policies and regulatory standards.

Required profile

• Bachelor’s or Master’s degree in Computer Science, IT or a related field.
• Minimum 4 years of hands‑on experience in front‑end development using ReactJS.
• Fluency in both French and English.
• Strong analytical and problem‑solving abilities.

Required skills

• ReactJS, Redux, React Hooks
• JavaScript (ES6+), HTML5, CSS3
• Angular (preferred)
• RESTful API integration, JSON handling
• Webpack, Vite, Babel, NPM/Yarn
• Git, GitHub, GitLab
• Material UI, Ant Design, Bootstrap, responsive design
• Micro‑frontend architectures, Docker, Kubernetes, GCP