Multi-Gateway Payment System

Project Overview

Built a comprehensive payment processing system that integrates with multiple payment gateways, provides automatic failover, fraud detection, and detailed transaction analytics. The system processes thousands of transactions daily across different payment methods.

Challenges

• Integrating with multiple payment providers with different APIs
• Implementing automatic failover between gateways
• Building real-time fraud detection system
• Ensuring PCI DSS compliance

Solutions

• Created unified payment abstraction layer for different gateways
• Implemented intelligent routing with health checks and failover
• Built machine learning-based fraud detection using transaction patterns
• Achieved PCI DSS Level 1 compliance with comprehensive security measures

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