Financial technology demands the highest standards of security, reliability, and performance. When a growing fintech startup approached Milaan Tech to build their payment processing infrastructure, we knew we were signing up for one of the most challenging — and rewarding — projects in our portfolio. The client's vision was ambitious: a unified payment gateway that could handle credit cards, bank transfers, UPI, digital wallets, and cryptocurrency payments across 15 countries with real-time fraud detection and instant settlement. Oh, and it needed to be PCI-DSS Level 1 compliant from day one. Our architecture was designed around three core principles: security first, availability always, an…
- PCI-DSS Level 1 compliant payment gateway from day one
- $500M+ in annual transactions across 2M+ merchants
- 99.999% uptime — only 5 minutes of downtime in 18 months
- Real-time fraud detection with 0.3% false positive rate
- Multi-region active-active setup with RPO=0 and RTO<30s
- 1.2-second average transaction processing time