I led changes across all parts of the billing system, bringing complex scenarios from different vendors into a single simplified payment flow across all platforms (iOS, Android, desktop, and mobile web).

I conducted a comprehensive audit of existing flows, identified critical drop-off points, and designed a unified interaction model with standardized payment method cards, streamlined user scenarios, and consistent logic for deposits and withdrawals.

The new implemented user scenarios with minimal steps led to a 35% increase in first-time deposit conversion.