Prior to joining DGIST, he worked at University of Illinois, Urbana-Champaign and University of Wisconsin, Madison as a postdoctoral research associate. He received the BS degree in computer science from Yonsei University in 2008, and the PhD in computer science from KAIST in 2014. He received the best paper award from IEEE computer architecture letters in 2014. His research interests include computer architecture, operating systems, virtualization, and computer system security.