I built a cross-platform mobile application using React Native (Android & iOS) and Node.js backend to streamline IPL (Iuran Pengelolaan Lingkungan) payments for residential communities.

The backend system uses PostgreSQL for structured data storage and integrates with Midtrans as the payment gateway to process secure and real-time transactions. To manage financial records, the app is connected to Firefly III, enabling automated bookkeeping and transparent financial tracking for both residents and administrators.

This app features monthly billing, payment notifications, digital receipts, and an admin dashboard for fee management — significantly reducing manual work while improving accuracy and trust in neighborhood payment systems.