At American Express, I modernize legacy derivation workflows in Java 21 for production distributed systems, contributing to a 45% reduction in API response time. I also developed a comparator tool with regression testing and UAT reporting that accelerated the migration program by 60%.
I engineered a regression testing service that achieved 99.9% accuracy in migrated integration onboarding and automated validation documentation. I also built Python data pipelines with GCP Dataflow and BigQuery to process 500K+ daily records, and created an event-driven order processing project using Spring Boot and Kafka.
