葉 圻煒 (JJ Yeh)

Software Engineer with 4.5 years of experience at TSMC, focusing on building and maintaining enterprise-level software solutions. My core expertise is in big data processing using Apache Spark (Java) for tool capacity management. I am a versatile full-stack developer with hands-on experience in React/GWT and Spring Boot/EJB. My technical toolkit includes DevOps tools like Azure CI/CD and Kubernetes, as well as a wide range of databases including MariaDB, Oracle, SQL Server, MongoDB, Cassandra, and MinIO. I have significant leadership experience, serving as a team lead for three members and a mentor to many.

• Spearheaded the complete revamp of a legacy Oracle-based system to a scalable, open-source platform utilizing Apache Spark, successfully reducing two Oracle server licenses and integrating the system into the TSMC Kubernetes ecosystem. Conducted rigorous performance testing and SQL data validation to ensure data accuracy and integrity.
• Mentored and led a team of three engineers, and guided over eight new hires and summer interns on full-stack development projects, including Spark SQL, React, and Spring Boot.
• Designed and implemented best practices for code quality, including establishing comprehensive branch merge guidelines and Git review principles, and setting up automated PR pre-builds and daily night builds.