Developer Needed for QR Code Generation & Validation System

Job ID: 39922831

Budget: $100 – $200 USD

I am seeking a skilled developer to create a secure platform for generating and validating unique QR codes or barcodes. The system should include the following features:

- Automatic generation of unique and traceable QR codes.
- Built-in QR code scanner within the app.
- Real-time validation (valid, used, invalid, or expired).
- Admin dashboard for managing codes and users.
- User login/authentication system.
- (Optional) Integration with a ticket sales system.

The suggested tech stack includes:
- Web: React + Node.js + PostgreSQL/Firebase.
- Mobile: Flutter or React Native.
- Secure API with encrypted tokens.

Ideal candidates should have experience with QR code projects, authentication systems, and database integration. Please share your portfolio, estimated timeline, and pricing.
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