About

Yu-Cheng (Owen) Lin is a highly skilled Senior Software Engineer currently working at eBay. With over 4 years of relevant experience, he has a proven track record of providing technical scope and leading projects, as well as providing guidance for junior engineers. Yu-Cheng is proficient in a variety of technologies including Java/Scala, extensively used design patterns, developing microservices with RESTful and open API, Spring MVC architecture, and test-driven development (TDD). He is also experienced in using Jenkins for CI/CD and end-to-end automation, as well as Git and GitHub. At eBay, Yu-Cheng has explored and provided technical scopes and initiated several architectural reviews within his team and organization to ensure that products can be shared across different teams. He has also led a project that migrated a legacy system to the latest tech stack with one junior engineer, ensuring that the system met SLA/security/tracking requirements and completed with single-digit production bugs for at least 6 months. Additionally, he has provided guidance for new hires, set up code review standards, and created a backend onboarding wiki. Prior to eBay, Yu-Cheng worked as a Backend Software Engineer at eBay, where he migrated a legacy leave feedback system to the latest tech stack and refactored legacy code with design patterns to ensure better readability/maintenance, improving 20% of team momentum. He also worked as a Software Engineer Intern at Pubmatic, where he upgraded an existing Spark project from Spark 1.6 to Spark 2.1, visualized a real-time Spark/Hadoop event dashboard using ELK stack, automated Spark/Hadoop ETL process by developing bash scripting and cron jobs on Linux, and built a Kafka system that fetched terabyte data from a Hadoop cluster and ingested it to Kinetica database. Yu-Cheng holds a Master's Degree in Computer Science and Engineering from Santa Clara University and a Master's Degree from National Taiwan University. His tech stack includes Software Engineering, Backend, Spark, CI/CD, test, Scala, Spring, Jenkins, Microservices, Java, Hadoop, Kafka, and ETL.