Blog/Sangyong Hwang

Sangyong Hwang

Principal Software Engineer

Sangyong Hwang is a Principal Software Engineer at Snowflake, where he leads query optimizer development. His work includes innovations in cost-based optimization, rule-based optimization and plan stability, using query history, data samples and machine learning. Before Snowflake, he worked on Amazon Aurora at AWS. Earlier, he was a founding member of SAP HANA, leading its query optimizer development from inception to maturity. He holds a Ph.D. in Computer Science from Seoul National University.

Oct 6, 2026Core Platform

Sangyong Hwang

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