G2G — Electronic Voucher Distribution

Make the complicated parts easier to trust.

Retailers and distributors needed to issue mobile top-up vouchers on the move and produce a clear transaction record using compact thermal printers.

Follow the problem across the stack.

I built the Flutter application and integrated Bluetooth thermal printing for transaction receipts.

• Built the retailer and distributor application in Flutter.
• Integrated Bluetooth thermal printers.
• Designed the transaction-to-receipt workflow.

Clarity that holds up in real work.

The result connected the complete field workflow—from voucher issuance on a mobile device to a printed receipt—inside one application.