• Principal Research Scientist, Center for Artificial Intelligence, Artificial Intelligence and Robotics Institute, Korea Institute of Science and Technology (KIST), (2015-Present)
• Associate Professor, Human-computer Interaction and Robotics, University of Science and Technology (UST) (2016-2019)
• Senior Research Fellow, Center for Imaging Media Research, Robotics and Media Institute, Korea Institute of Science and Technology (KIST) (2012-2015)
• Research Scientist, Center for Environmental Sensing and Modeling (CENSAM), Singapore-MIT Alliance for Research and Technology (SMART) (2009-2012)
• Affiliate Research Scientist, Center for Educational Computing Initiatives (CECI), Massachusetts Institute of Technology (MIT) (2009-2011)
• Fellow, Web3D Consortium (2007-2009)
• Postdoctoral Research Fellow, Modeling, Virtual Environments, and Simulation (MOVES) Institute, Naval Postgraduate School (NPS) (2007-2009)
• Postdoctoral Research Fellow, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST) (2006-2007)