Professor, Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST) (2014 - 2021)
Strategic Planning Committee Chair (Associate Dean), College of Engineering, Korea Advanced Institute of Science and Technology (KAIST) (2017 - 2020)
Professor, School of Computer Science and Engineering, Seoul National University (2009 - 2014)
Associate Dean for Information Technology and Alumni Outreach: College of Engineering, Seoul National University (2011 - 2013)
Associate Professor, Department of Computer Science and Engineering, Seoul National University (2004 - 2009)
Assistant Professor, Department of Computer Science and Engineering, Seoul National University (2000 - 2004)
Full-time Lecturer (tenure track), Department of Computer Science and Engineering, Seoul National University (1997 - 1999)
Postdoc, Engineering Research Center for Control and Instrumentation, Seoul National University (1996)
Visiting Professor, Department of Electrical and Computer Engineering, University of Southern California (2009-2010)
Visiting Associate Professor, Department of Computer Science and Engineering, Arizona State University (2005)
Visiting Scholar, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor (1997)