Worked on foundational cloud infrastructure for PayPal's cloud modernization initiative, serving as core platform for 4,000+ applications across the organization

Extended open-source Trident NetApp k8s operator to support volume imports and workload identity authorization on GKE, enabling storage management for all Xoom workloads processing millions of transactions

Resolved pod scheduling failures (OOM kills, node taints) and led workload migrations from N1 to N2D machine types across GKE clusters

Built internal MCP-integrated Slack tooling to automate on-call support workflows, reducing manual ticket triage

Identified and resolved a concurrency bug in a data migration pipeline processing 100M+ records across 7 schemas — shared mutable pagination state in an async queue caused all parallel tasks to fetch duplicate pages, resulting in 40% data loss over 3 days undetected

Root-caused through manual reproduction on test data, confirming record count mismatches between source and Elasticsearch destination, then traced to a single shared state mutation in the upstream TypeScript fetcher

Coordinated 3-week team-wide backfill effort, replaying records from upstream source systems to restore data integrity

Debugged gzip encoding mismatches during cross-service data migration, tracing compression inconsistencies across service boundaries

Operated and maintained large-scale distributed data ingestion platform spanning 60+ microservices with multiple async queues

Modernized legacy loan processing system by replacing SOAP with REST APIs and implementing microservices architecture with circuit breakers.