Key responsibilities:

1. Develop and maintain efficient, reusable, and reliable React.js code.
2. Build user-facing features and implement responsive designs.
3. Collaborate with cross-functional teams to define and implement new features and enhancements.
4. Participate in code reviews and ensure code quality, performance, and optimization.
5. Identify and address performance bottlenecks and troubleshoot issues as they arise.
6. Stay up-to-date with emerging technologies and industry trends to continuously improve development processes and tools.
7. Contribute to the overall architecture and design of the web applications.
8. Work closely with designers to translate wireframes and mockups into high-quality code.
9. Test and debug applications to ensure optimal performance and usability.
10. Provide technical support and guidance to other team members when required.
11. Ensure the security and protection of user data and implement necessary measures.

Note: Only candidates with an IT background are preferred.