Trey Pero

About Trey Pero

I am a Technical Lead, at McKesson Pharmacy Systems, optimizing the design, security, and…

Experience

1. Technical Lead

   McKesson

   Dec 2021 — Present

   I support the forward development of EnterpriseRx, a highly configurable, large-scale, legacy, centralized pharmacy management system. I lead a Kanban team on various projects to improve and modernize the various layers of the application\'s architecture involving security, design, resilience, performance, implementation, and maintainability. My development spans ~10 repositories and ~3 million lines of Java.\\\\n\\\\nMy accomplishments include:\\\\n\\\\n- Led the upgrade of the EnterpriseRx application server runtime from Jboss 7 and Java 8 to Wildfly 26 and Java 17\\\\n- Migrating credit card processing out of the jboss monolith into a spring boot application on a separate release cycle to isolate PCI auditing and reduce the size of the main monolithic codebase\\\\n- Migrated a set of outbound events processed by an external JMS server to Kafka\\\\n- Setup a http simulator using WireMock to mock various external apis for dev and qa testing, replacing existing one off simulators, reducing maintenance and improving consistency\\\\n- Collaborated with CM to design and implement a git flow model for several microservices and libraries on a \"release when ready\" model.\\\\n- Adopted Renovate into the team\'s workflow to automate dependency upgrades for microservices on a monthly schedule.\\\\n- Designed and developed automated cucumber test suites for several applications using JPA and Spring Boot. I also developed several gradle test fixtures to share common code across the repositories containing these suites.\\\\n- Designed and developed Spring Boot REST endpoints to migrate a set of incoming events, from CPS (a separate MPS web application) to EnterpriseRx, off of iWay (licensed middleware) to support getting CPS fully into the cloud.\\\\n- Migrating a large ant build to gradle, as well as managing several full gradle builds\\\\n \\\\n\\\\n \\\\n \\\\n\\\\n \\\\n