At Fiserv, I develop Java applications and REST APIs for TeleCheck’s check acceptance, processing, and risk analytics platform. I modernized four legacy applications into Java 21 services on AWS ECS and automated merchant onboarding, reducing processing effort from 210 hours to 30.
I’ve also developed centralized GitLab CI pipelines for 100+ application modules and automated tests with JUnit and Mockito. In my projects, I enhanced a Java transaction processing gateway deployed on AWS ECS Fargate and developed a biometric authentication solution with a companion mobile application.

