Retail Kiosk Software Development

I need a complete, ready-to-use kiosk software for a retail environment. The software should be compatible with Windows and designed for touch-enabled devices.

Key functionalities:
- Product browsing and purchasing of physical products
- Integration with:
- Barcode scanner
- Printer (for bills/receipts)
- Payment module (optional card reader)
- Touchscreen navigation
- Offline functionality to sync data when internet is restored
- Admin settings and configuration UI

Ideal skills and experience:
- Proven experience in developing kiosk software
- Strong knowledge of Windows application development
- Familiarity with hardware integration (barcode scanners, printers, payment modules)
- Ability to create user-friendly, touch-based navigation interfaces
- Experience with offline data synchronization techniques

Please include relevant work samples and a brief outline of your approach.