Shipping reliable multi-provider payments in a mobile app

THE PROBLEM

Payments needed to work across multiple providers and regions without exposing that complexity to users — and without the flaky edge cases that quietly lose transactions.

APPROACH

• Integrated multiple gateways — Stripe, Adyen, CC Avenue, Easebuzz, and others — behind one consistent checkout flow.
• Built native iOS Swift handling for provider SDKs that required platform-level integration.
• Hardened failure and retry paths so transient errors didn't drop transactions.
• Validated against App Store compliance requirements for in-app purchase flows.

WHAT WAS HARD

• Multiple providers, each with its own SDK quirks, unified behind one coherent user experience.
• Reconciling native and cross-platform layers for secure, reliable transactions.

IMPACT

• Reliable transaction processing across providers and regions.
• A payment layer that degrades gracefully instead of failing silently.