- Structural Design, Tall Building Design
- Seismic and Wind Design
- Smart Jack for Post-Tensioning

2004 ~ 2007 Lecturer, UCLA
2004 ~ 2007 Structural Engineer, Los Angeles Area (Licensed Professional Engineer, CA)
2007 ~ 2011 Assistant Professor, University of Oklahoma
2011 ~ Present Professor, Seoul National University
2012 ~ 2016 Adjunct Professor, University of Oklahoma
2016 ~ 2019 Adjunct Professor, University of Illinois at Urbana-Champaign
2017 ~ 2023 Director, Innovation Center for Engineering Education, Seoul National University
2019 ~ 2023 Director, Global Education Center for Engineers, Seoul National University
2023 ~ 2024 Visiting Professor, UCLA

2009 Wason Medal for Most Meritorious Paper, American Concrete Institute (ACI)
2012, 2023 Kenneth B. Bondy Award for Most Meritorious Technical Paper, Post-Tensioning Institute (PTI)
2023 Martin P. Korn Award, Precast/Prestressed Concrete Institute (PCI)