Rebuild Redesign An Existing App(React Native) and Website Using React (Frontend) & Node.js (Backend)

I need my current React native app and E-commerce website redesigned and rebuilt from the ground up with React on the frontend and Node.js on the backend. While the existing business logic and catalogue can stay intact, the look and feel must be completely refreshed into a modern, minimalistic interface that is fully responsive and lightning-fast on both desktop and mobile. The current site is functional but needs a complete modern revamp to Progressive Web App in order to improve speed, responsiveness, and overall user experience. The apps also need upgrades and redesigned. The current site is live, so migration needs to be low-risk with zero data loss. I expect clean, maintainable code (MERN stack with well-structured API endpoints), solid documentation, and deployment to existing or new hosting environments once completed. Key Responsibilities: Redesign the existing design. Rebuild the frontend using React.js, ensuring a modern, responsive, and user-friendly interface. Develop the backend with Node.js and integrate with existing databases/APIs. Implement secure user authentication, payment gateway integration, and admin dashboard features. Ensure smooth data migration from the current site. Optimize the website for SEO, performance, and mobile compatibility. Redesign and rebuild apps. Conduct thorough testing before deployment.

Requirements

MERN full stack web app developer and designer. Proven experience in React.js and Node.js (portfolio or live project links required). Strong understanding of RESTful APIs, MongoDB/MySQL, and Express.js. Familiarity with e-commerce platforms, shopping cart systems, and payment gateways (e.g., Stripe, PayPal). Experience with responsive design and cross-browser compatibility. Ability to work independently and deliver within deadlines. Strong communication skills and attention to detail.

Nice to Have

Experience with TypeScript, Next.js, or GraphQL. Knowledge of AWS, Docker, or CI/CD pipelines. UI/UX design experience or familiarity with design tools like Figma. Deliverables: Fully functional e-commerce website (frontend + backend (users and admin)). Responsive website with its own design Upgraded redesigned apps with new features and functionalities found on the website . Site maybe moved in a new domain, which mean change of name Documentation for setup, maintenance, and deployment. Post-launch support for bug fixes (6-12 months). Pixel-perfect React frontend matching the new minimal design. Node.js backend integrated with the existing database and payment gateways. Source code in Git with meaningful commits and setup instruction