Designed and launched a new service to charge third-party sellers for compliance and debt collection, serving as technical lead for 3 SDEs during implementation, testing and rollout. Ensured maintainability, readability and extensibility for future use cases.

Architected and delivered system optimizations that reduced annual operational costs by over 250K USD.

Identified critical system gaps that impacted Amazon’s point-in-time cash flow by 8M USD, growing YoY.

Deprecated a legacy debt management service and migrated functionality to two modern, scalable systems. Implemented shadow validation that caught critical issues including a thread-safety bug.

Coordinated scaling efforts across 10+ services and multiple orgs to support 10K+ TPS during peak events and major launches.

Proposed and coordinated integration test enhancements across the team, increasing success rate from 5% to 70% and enabling daily automated deployments (previously manual every 5 weeks).

Developed two generic getter/setter APIs to replace 30 legacy APIs, simplifying integrations for 100+ client teams.

Owned and enhanced internal React UI by displaying seller charge and debt details, improving seller support query handling and debugging.

Onboarded and supported multiple partner teams, ensuring adherence to high engineering standards and best practices.

Led operational improvements and mentored team members, driving reliability, scalability, and technical excellence.