We are seeking a motivated and skilled ReactJS to join our Engineering team based in Lille, France. This role is crucial in designing, developing, and maintaining high-performance, user-friendly web applications that deliver exceptional experiences for our business users. The ideal candidate will combine strong technical expertise in ReactJS, modern JavaScript frameworks, and frontend principles with effective communication skills in both French and English, working closely with cross-functional teams to deliver reliable and visually engaging solutions.

Key Responsibilities :

• Application Support & Development: Provide support and enhancements for ReactJS-based applications, handling incidents, service requests, and troubleshooting issues reported by business users.

• Technical Analysis & Troubleshooting: Analyze, debug, and resolve functional and technical issues related to React components, state management, and API integrations.

• Incident and Problem Management: Monitor application performance, identify root causes of recurring UI issues, and implement long-term corrective measures.

• Stakeholder Communication: Collaborate with business and technical teams to understand requirements, deliver timely solutions, and ensure user satisfaction with the web applications.

• Documentation & Reporting: Maintain up-to-date technical documentation, including UI design specifications, component libraries, and deployment guides.

• Compliance & Security: Ensure all code, configurations, and deployments adhere to organizational policies, security best practices, and regulatory standards.

Required Skills & Qualifications :

• Education: Bachelor’s or Master’s degree in Computer Science, Information Technology, Software Engineering, or a related field.

• Experience: Hands-on experience in front-end development using ReactJS, JavaScript (ES6+), HTML5, and CSS3, including design, development, and troubleshooting of web applications.

Technical Expertise:

• Strong proficiency in ReactJS, Redux, and React Hooks — Expert (Required).Angular Framework is also preferred.

• Experience with RESTful API integration and JSON-based data handling — Proficient (Important).

• Knowledge of modern front-end build tools (Webpack, Vite, Babel, NPM/Yarn) and version control systems (Git/GitHub/GitLab) — Proficient (Important).

• Familiarity with UI frameworks (Material UI, Ant Design, Bootstrap) and responsive design — Proficient (Important).

• Understanding of micro-frontend architectures, containerization (Docker, Kubernetes), or cloud platforms (GCP).

• Language Skills: Fluency in French and English B2 minimum.

• Analytical Skills: Strong problem-solving abilities, attention to detail, and a proactive approach to improving UI performance and usability.

Why join TCS:

• Join an international company and a leader in its field.

• Thrive in a multicultural environment with diverse and high-impact projects.

• Develop your skills through continuous training.

• Benefit from an inclusive and collaborative company culture.

• Participate in innovative projects that are transforming the future.

The recruitment process:

• An initial meeting with our HR team.

• A technical interview to assess your skills.

• A final interview with an operational manager.

• And then, welcome to TCS !

“At TCS, diversity is an asset and inclusion is a daily commitment. We cultivate an environment where every talent, regardless of their background or experience, can express themselves, grow, and fully contribute to our collective success.”