I need my current online store 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 improve speed, responsiveness, and overall user experience. The current site is live, so migration needs to be low-risk with zero data loss. I expect clean, maintainable code (React + hooks, modular CSS or styled-components, Node/Express with well-structured API endpoints), solid documentation, and deployment to my existing hosting environment once QA is complete. Key Responsibilities: 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. Conduct thorough testing before deployment. Requirements: 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)). 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 instructions.