Building Resilient Systems at Scale

Owning end-to-end cloud infrastructure for UPI SaaS platforms serving banks, TPAPs, and PSP apps — responsible for security, architecture, and production operations across India's largest acquiring payment solutions.

• Own end-to-end cloud infrastructure for UPI SaaS platforms serving banks, TPAPs, and PSP apps — responsible for security posture, architecture decisions, and production operations across multiple product lines
• Designed multi-master database architecture sustaining 10,000+ TPS with 99.99% uptime SLA for leading UPI PSPs, enabling horizontal scaling during peak transaction windows
• Led AWS RDS-to-Aurora migrations with zero production impact, reducing read replica lag by ~40% and cutting database operational costs
• Built a Python-based regression testing framework validating new service versions against 200+ test cases, catching 3–5 critical issues per release cycle
• Implemented data compression for observability pipelines, reducing inter-zonal data transfer costs by ~35% across the organization
• Defined operational standards and rollout procedures adopted across 3 product teams, enabling zero-downtime deployments for payment-critical services