Prepay Recharge Platform

Prepay is a telecom-focused web application developed for the Romanian market, providing electronic mobile recharge services across multiple operators. The platform supports both PIN-based and direct recharge methods, ensuring flexibility and reliability for end users and merchants.

Highlights

• - Implemented prepaid mobile recharge workflows supporting multiple telecom operators in Romania
• - Replaced legacy Brodos-based Paysafecard integration with Paysafecard Direct API for improved transaction handling
• - Integrated the recharge system into Westaco Express, a multi-service payment gateway, enabling seamless merchant access
• - Developed backend logic for secure transaction processing and validation
• - Built server-side rendered interfaces using Thymeleaf for efficient user interaction

Impact

• - Reduced API-related transaction failures by 40% through modernized Paysafecard integration
• - Improved system stability by fixing critical issues in the transaction pipeline
• - Decreased failed transactions by approximately 30%, enhancing user trust and reliability
• - Enabled scalable recharge services across multiple merchant platforms via payment gateway integration

Technical Overview

• - Backend developed using Java EE, Servlets, and deployed on Apache Tomcat
• - Server-side rendering implemented with Thymeleaf
• - Database management using MySQL
• - Payment and recharge integrations designed for high reliability and fault tolerance
• - Version control managed with Git

Delivery

This project was developed for a client serving the Romanian telecom market. Due to business and integration constraints, source code and live access are not publicly available.