– University of California, Berkeley: Graduate Student Researcher (2000-2004), Graduate Student Instructor (2002-2003), Postdoctoral Researcher and Lab Instructor (2004-2005)
– Risk Management Solutions, Inc.: Senior Vulnerability Engineer (2005)
– University of Illinois at Urbana-Champaign: Assistant Professor (2005-2011), Senior Researcher at Information Trust Institute (2007-2013), Faculty Fellow at National Center for Supercomputing Applications (2009-2010), Associate Professor (2011-2013), CEE Excellence Faculty Scholar (2012-2013)
– Department of Civil and Environmental Engineering, Seoul National University: Next Generation Scholar (2014-present), Associate Professor (2014-2016), Director of Convergence Research Center for Disaster-Hazard Resilience (2015-2017), Professor (2016-present), Associate Department Head for Academic Affairs (2020), Associate Director of Education and Research Program of InfraSPHERE (2020-2021), InfraSPHERE Fellow (2022-present)
– Carnegie Mellon University: Visiting Scholar (Wilton E. Scott Institute for Energy Innovation, 2017-2018)
– College of Engineering, Seoul National University: Associate Dean for Academic Affairs and Acting Dean (2021-2022)
– Establishment Committee for SNU School of Transdisciplinary Innovations: Chair (2023-present)