Jaejin Lee is a professor in the Dept. of Data Science/Graduate School of Data Science (Dean) and the Dept. of Computer Science and Engineering/College of Engineering at Seoul National University (SNU). He is also the director of the Centre for optimizing Hyperscale AI Models and Platforms (CHAMP) and the leader of the Thunder research group. He received his Ph.D. in Computer Science from the University of Illinois at Urbana-Champaign (UIUC) in 1999. His Ph.D. study was partly supported by graduate fellowships from IBM and Korea Foundation for Advanced Studies. He received an M.S. in Computer Science from Stanford University in 1995 and a B.S. in Physics from SNU in 1991. After obtaining the Ph.D., he spent half a year at UIUC as a visiting lecturer and postdoctoral research associate. He was an assistant professor in the Department of Computer Science and Engineering at Michigan State University from January 2000 to August 2002 before joining SNU. He is an IEEE fellow and a member of ACM.