Paymish - Secure Online Payment Gateway

Technologies Used

Key Challenges

• !Minimizing internal latency down to milliseconds to beat timeout windows on Bank APIs.
• !Architecting an infrastructure capable of scaling infinitely under sudden traffic bursts.
• !Applying rigorous security limits to stop fraudulent exploitation.

Solutions & Execution

• Used isolated Node.js microservices so high-computation jobs don't block critical socket connections.
• Tightly integrated TypeORM with an enterprise-grade PostgreSQL instance to enforce data security via schemas.
• Developed custom IP tracking and rate-limiting modules via Redis to intercept malicious bot activities.

Impact & Results