Bug Fixing for Payment Gateway & Subscription Module
Budget: ₹1,500 – ₹12,500 INR
Fixed multiple critical issues in a subscription-based SaaS app where payments were failing or not updating user accounts.
Resolved webhook handling bugs, API authentication issues, recurring billing errors, timezone mismatches, and inconsistent invoice generation.
Rebuilt the subscription logic in a clean C# service layer, implemented retry queues, and created audit logs for every billing event.
Optimized MySQL tables and added auto-cleanup scripts to maintain system health.
Resolved webhook handling bugs, API authentication issues, recurring billing errors, timezone mismatches, and inconsistent invoice generation.
Rebuilt the subscription logic in a clean C# service layer, implemented retry queues, and created audit logs for every billing event.
Optimized MySQL tables and added auto-cleanup scripts to maintain system health.