Scan-and-Done QR Web App Developer Needed - to reserve a hotel room

The technical core is a in-room dynamic QR code that skips login entirely, letting guests see a price lower than the OTA and complete payment within seconds. Hire a General Full-Stack Web Developer, For the Dynamic QR + Web App to make a zero-friction discount, scan-and-done experience.
we don't need a QR-code specialist; but need someone who can build a small web application.

Core Skills to Look For:

Frontend: JavaScript (React, Vue, or plain JS), HTML, CSS for a mobile-first landing page that opens instantly on a phone .
Backend: Node.js, Python (Django/Flask), or PHP (Laravel) to handle the dynamic logic: looking up the guest's booking, calculating a price, and processing payment .
Database: MySQL, PostgreSQL, or MongoDB to store QR code-to-booking mappings and track scans .
QR Generation: Experience with a QR library (like qrcode for Node/Python) to create the unique codes .
API Integration: Critical for OTA use. They must be able to connect to our PMS or booking engine API to pull the guest's original rate and push the new direct booking .

Applicants to present a previous project where a user scanned a QR code and landed on a page that displayed dynamic, user-specific information from a database (not just a static link).