I’m building a modular, scalable QR code ordering platform for cafés and need a full-stack developer who works comfortably with Node.js on the backend. The system will support three roles: • Super Admin – creates cafés, assigns subscription packages, runs reports, and can toggle online payment on or off per café. • Café Admin – generates table-specific QR codes, maintains the digital menu, and monitors incoming orders in real time. • Customer – scans a table QR, views the menu, builds a cart, and submits the order from any mobile browser. If online payment is enabled, the customer should be routed through a local UAE gateway (e.g., Network International or similar). Please architect the payment module so that Stripe or PayPal could be swapped in later without rewrites. Technical expectations – Backend: Node.js with a clean, well-documented codebase. – Database: MySQL or MongoDB, whichever you feel best suits the design. – Frontend: HTML/CSS/JS; React is welcome if it speeds development and keeps the UI snappy on mobile. – Deployment: deliver to my own hosting and domain, with instructions for environment variables, build commands, and database import. – Ownership: all source code, assets, and database schemas handed over in full. What to send with your bid I’d like to see past work specifically related to restaurant tech, QR ordering, POS, or similar real-time ordering systems. Links, repo snippets, or short video demos are perfect; no need for lengthy proposals—I’ll follow up with shortlisted freelancers for deeper discussions. I’m aiming for a clean MVP first, followed by feature iterations, so well-structured code and clear separation of concerns are critical. If you have questions about flow, database design, or the UAE payment interfaces, let me know in your opening message so we can clarify early.