POS Properti Payment Gateway
Creating payment gateway for internal use at POS Properti.Overview
- Role: Fullstack Developer
- Stack: Laravel, React, Node.js, PostgreSQL
- Timeline: 2024
Goals
Build a centralized payment gateway portal for internal use at POS Properti, enabling all company transactions to be processed, reviewed, and integrated with third-party systems through a secure REST API.Scope of Work
This project was designed to serve as a one-stop portal for handling all company transactions under POS Properti.The system integrates directly with a local banking partner to process payments, settlements, and transaction verification in real-time. Additionally, a custom REST API was developed to allow integration between the payment gateway and other internal company applications — ensuring a consistent and scalable financial workflow.
Highlights
- Developed RESTful payment gateway services using Laravel and Node.js.
- Built a React-based dashboard for transaction monitoring, reconciliation, and analytics.
- Implemented PostgreSQL for structured financial data storage with optimized indexing for faster reporting.
- Integrated bank APIs for automatic settlement and real-time transaction validation.
- Focused on security, including token-based authentication and role-based access control.
Stats
+70%
Improved internal transaction processing efficiency
-40%
Reduced manual reconciliation tasks
Rp.+7B
Total amount of transaction that successfully processed
99.9%
System uptime through containerized deployment
Screens
Learnings
- Building financial systems requires strict consistency and security discipline across all layers.
- Designing REST APIs with clear versioning and idempotent operations prevents integration errors.
- Centralized systems simplify auditing and reporting when multiple company services depend on the same financial core.
- Collaborating with external banking APIs emphasizes the importance of clear documentation and sandbox testing before production rollout.