Ryan Zerbe Email & Phone Number

Gold Canyon, Az, Us

Gilbert, Arizona, United States

Chandler, Arizona, United States

Software specialist for critical vehicle distribution and global order management systems. • Collaborated in condensing 6 vehicle distribution systems into 1, by redesigning algorithms for concurrent allocation and interfaces for model specification data, saving $250,000+ in maintenance and license fees. • Provided developer and test automation support to order workbench system under emergency crunch conditions, allowing the billion-dollar valued system to become greenlit a week before the hard deadline. • Onboarded new developers and coordinated with business for release planning, UAT, deployment, and incident resolution as an application owner for a vehicle distribution system used by 565 dealerships. • Reconstructed legacy order management system into a cloud-based Java application implemented with Angular, Spring Boot, and Hibernate, leveraging Azure CICD, improving UX for 37 business users. • Planned and executed migration effort to bring WebLogic dependent applications to a cloud-based Java platform built on Apache Tomcat/Tom EE, Docker, and Kubernetes, which modernized 4 applications. • Remediated performance issues in improperly joined SQL queries and N+1 selects with materialized hints for CTEs and fetching lazy-loaded collections, reducing summary load times from 3 minutes to 5 seconds. • Implemented ETL pipelines in Spring Batch to process, normalize, and store upstream data in vehicle distribution system’s database from mainframe file transfers and message queues via JMS and IBM MQ.

Tempe, Arizona, United States

Teaching assistant facilitating mentorship and group collaboration with computer science students. • Reinforced understanding of abstract programing language concepts and their implementation to code by creating study guides and videos for a class of around 150 students. • Reviewed student’s C++ compiler programs during office hours, reinforcing data structure concepts, stack trace debugging, and code quality guidelines leading to success for around 7 students per week.