Full Stack Developer Needed to Improve Existing Web Platform

I am looking for an experienced Full Stack Developer to improve and enhance an existing web platform built with React, Node.js, Express.js, and MongoDB. The platform is already developed. So I need assistance with fixing serveral issues, improving the user interface, optimizing performance, and implementing a few new features on both the frontend and backend. Responsibilities: - Improve UI/UX across multiple pages - Fix frontend bugs and responsive design issues. - Enhance existing React components and user workflows - Update and improve backend APIs - Add new API endpoints and business logic - Fix data handling and database-related issues - Optimize application performance and code quality - Test all implmeneted changes before delivery. Requirements - Proven experience with React.js, Node.js, Express.js, and MongoDB. - Strong understanding of REST APIs. - Experience debugging existing applications. - Ability to work independently and communicate progress clearly. - Availability to complete the project within one week When you are apply, please include, - start words 'EMPLOYEE' - How many years of experience do you have with React and Node.js? - Have you worked on improving existing applications rather than building from scratch? - Can you share examples of similar full-stack projects? - Can you complete this project within 7 days? This is a small project intended to improve an existing platform. If the collaboration is successful, there may be additional development work and long-term opportunities available.