$ ls ~/work
Systems I designed and built for employers over 15+ years — banking, payments, and large-scale retail. The source is proprietary, so there’s nothing to link to; the systems themselves are the portfolio.
JPMorgan Chase · 2021–2024
Spring Boot microservices processing thousands of debit card transactions per second — manual Kafka offset commits for zero data loss, automated reconciliation with Dead Letter Topics.
JPMorgan Chase · 2019–2021
Led design of automated archival and purge replacing legacy systems — +25% operational efficiency with a full compliance audit history; refactored the legacy C# portal into clean Java.
The Home Depot · 2017–2019
Scalable containerized microservices with Pub/Sub decoupling, Terraform IaC, and Concourse CI/CD — cut deployment overhead by 40%.
Verizon · 2016–2017
Event-driven services on SQS, SNS, and Lambda with OAuth2 across backend layers — improved response times by 20%.
First Data (Fiserv) · 2014–2016
SOAP and REST services with SQL optimization for large-scale transaction and batch processing.