Develop a website in React.js

We already have a fully functional website with the majority of the frontend completed. The project is now at the final stage, and we're looking for an experienced frontend developer who can help us refine the product and bring it to a production-ready standard. This is not a project that needs to be built from scratch our focus is on improving the overall user experience, visual polish, and code quality. We're looking for someone with a strong eye for design and attention to detail who can identify areas that need improvement and implement them thoughtfully. This includes refining the existing UI, improving consistency across the application, adding smooth animations and loading states, enhancing interactions, and making the overall experience feel polished and professional. There may also be a few additional pages that need to be designed and developed, such as a modern landing page or other supporting screens, wherever they would improve the product. At this stage, backend integration is not required. The focus is entirely on creating a clean, responsive, and production-ready frontend. We expect well-structured, maintainable code that follows best practices and is easy for our team to continue working with. We're looking for someone who can think beyond simply implementing designs. If you have ideas to improve the user experience, visual hierarchy, interactions, or overall flow of the application, we'd love to hear your suggestions and have you incorporate them where appropriate. If we're happy with the quality of your work and the collaboration goes well, we'll open a separate project for the same developer to handle backend integration, API connectivity, and additional production improvements. We're looking for someone interested in building a long-term working relationship rather than just completing a one-off task.