At American Express, I designed and developed a real-time reconciliation validation API that traverses control-account hierarchies and maintains sub-2-second response latency.
I redesigned a core validation service with batched database operations and asynchronous processing, improving request latency by 10×. I also deployed an event-driven pipeline that synchronizes file-delivery status across services, processing 160K+ events daily with retries and idempotency.
I shipped a secure audit-trail REST API that reduced PostgreSQL query latency by 40%, and built production observability and alerting for 63 microservices. I also created an integration-test suite with 112 test cases.
On my Enterprise Conversational AI Platform project, I developed natural-language report configuration using LangChain and MCP tools, including multi-turn workflows and authorization-aware backend operations.
