ISELLVOUCHERS
“Gamers in regions underserved by global payment processors couldn't reliably purchase game credits, gift cards, and top-up vouchers. The existing options were slow, expensive, and frequently unavailable. ISellVouchers needed to be the reliable middle layer between suppliers and players.”
ISellVouchers is a gaming voucher marketplace handling the full e-commerce lifecycle: product catalog, real-time inventory, payment processing, automated digital delivery, and seller verification.
Built on a Node.js/TypeScript backend with a React storefront, the platform integrates Stripe for payment processing with 3D Secure support. Voucher fulfillment runs through a queue system — orders trigger automated delivery via email within seconds of payment confirmation.
Fraud detection was a real design challenge. Digital goods are non-refundable by nature, so we built a risk scoring system on top of payment metadata to flag suspicious orders before fulfillment. Seller verification and product authenticity checks run before any listing goes live.
The catalog handles hundreds of products across game publishers, regions, and currency denominations — all with real-time inventory sync to prevent overselling.