Project Overview We are building Connect Me UAE, a privacy-first vehicle contact platform that allows people to contact a car owner by scanning a QR code without revealing phone numbers. This system includes: QR-based interaction (no app required for scanner) Mobile app for car owners Backend system handling secure communication (calls, WhatsApp, messages) The goal is to deliver a fast, secure, and production-ready MVP. Core Features QR Scan Experience (No App Required) User scans QR → opens mobile web page Shows: Car plate number 3 options: Anonymous call WhatsApp message Leave note + photo No login, no signup Must load in < 2 seconds Anonymous Communication System Masked calling (via Twilio or similar) WhatsApp messaging integration (WhatsApp Business API) Message + photo upload system Strict privacy model: No phone number sharing between users Mobile App (iOS + Android) Built using React Native (preferred) Key features: OTP login (UAE numbers) Register QR tag Toggle availability (on/off, calls on/off) Quiet hours setting Scan history with timestamps + map Message inbox (with images) Push notifications (real-time) Backend System Recommended stack: Node.js PostgreSQL Cloud hosting (AWS / GCP preferred) Responsibilities: Handle QR routing Encrypt phone numbers (AES-256) Handle call/message routing Rate limiting & abuse prevention Push notification system Secure API (JWT-based auth) Admin / System Logic Tag registration & validation Activity logging (scans, calls, messages) Error handling (invalid QR, disabled owner, etc.) Daily backups & monitoring Technical Requirements Performance Web page load: < 2 seconds API response: < 500ms Notifications: < 5 seconds delivery Security AES-256 encryption for sensitive data OTP authentication Rate limiting (calls/messages per IP) Input sanitization + file scanning Compliance (Important) UAE PDPL (data privacy law) Data must be stored in UAE/GCC region Users must be able to delete their data Deliverables Mobile app (iOS + Android) Mobile-responsive web scanner page Backend APIs + database Deployment (production-ready) Basic documentation Source code (well-structured) Preferred Tech Stack Mobile: React Native Backend: Node.js Database: PostgreSQL Messaging/Calls: Twilio + WhatsApp API Ideal Candidate We are looking for: Full-stack developer or team Experience with: Real-time systems Secure applications Mobile + web apps Strong understanding of performance + UX Timeline MVP target: 2 weeks Proposal Requirements Please include: Relevant past projects (especially similar systems) Tech stack you recommend (if different) Timeline breakdown Any suggestions to improve the system Bonus (Nice to Have) Experience in UAE market Arabic language support Experience with QR/NFC systems