Overview

Developed a PCI-aware wallet service supporting deposits, withdrawals, chargebacks, and KYC flows.

Key Contributions

Modeled double-entry ledgers and reconciliation jobs.

Integrated providers (Stripe, Adyen) behind a clean /payments/* abstraction.

Shipped a responsive admin UI with audit trails and role-based access.

Outcome

Improved acceptance rate by 6.3% while reducing dispute handling time by 42%.