Fintech Middleware & Gateway Engine
High-Scale Payment Infrastructure Engineering at Easebuzz
System Overview
A sophisticated middleware architecture sitting between merchants and payment gateways to handle high-volume traffic for UPI, NetBanking, and Cards. The system ensures secure communication and data integrity across diverse banking protocols.
Engineering Governance
Leading a cross-functional team in architecting secure, high-scale financial infrastructure. Negotiating technical requirements with banking partners and spearheading end-to-end maintenance of mission-critical systems.
Full-Stack Architecture
Engineered using a secure, event-driven architecture. Implemented AES-128 and RSA-2048 encryption with SHA256 signatures for transaction security. Developed a custom ISO 20022 message generator (pacs.008) for inter-bank settlements and automated SFTP modules for banking integrations. Built using Python, FastAPI, and Kafka for high-concurrency processing.
Business Impact
Maintained 99.99% operational uptime across complex payment gateway integrations.
Ensured full compliance with RBI digital payment security guidelines and ISO 20022 standards.
Successfully handled high-volume transaction traffic with zero data loss and automated reconciliation.
Maintaining 99.99% reliability during high-volume transaction spikes.
Implemented robust failover mechanisms and highly scalable distributed systems for real-time transaction state management.
Integrating with fragmented, legacy banking settlement protocols.
Developed automated settlement adapters and Pacs.008 XML generators to standardize communication with various financial institutions.