Primary Payment Gateway Migration:Led the end-to-end migration of Visa’s primary payment gateway from a VM-based architecture to Kubernetes, serving more than 68% of global Visa card traffic.As the Point of Contact (POC) for this pioneering project, I oversaw the first-generation gateway migration to Kubernetes, significantly enhancing performance, scalability, and release management efficiency.Multi-Agent Generative AI Framework:Architected and implemented an innovative Multi-Agent Generative AI framework.Integrated key development tools (Confluence, Jenkins, Bitbucket, Jira) to substantially boost developer productivity. Engineered autonomous agents with advanced RAG pipeline capabilities for reliable data generation and behavior with human-in-the-loop oversight.Asynchronous Multi-Level Retry Mechanism:Designed and implemented a comprehensive asynchronous multi-level retry mechanism for an Australian gateway project.Ensured robust connectivity between the gateway and end processors during network failures, adhering strictly to client specifications.Transaction Processing System Re-Engineering:Re-engineered a batched transaction processing system, scaling it from a 5.5 TPS monolith to a 12.7 TPS clustered deployment.Kubernetes Cluster Performance Optimization:Optimized stage-level Kubernetes cluster performance, achieving near-zero downtime and eliminating Crash errors during pod creation.Legacy System Modernization with Kafka Integration:Modernized legacy batch management systems through strategic Kafka integration.Significantly enhanced system observability via comprehensive framework-level log monitoring.

•Hacked website in Global Cybersecurity CTF challenge and stood as 1st runner up globally.•Worked as a team in a case study challenge on Cashless Society and developed a white paper on Visa Go. Learned about Visa’s Payments Technology.