
| 2020.03 | – | 2024.02 | Dean of Admissions, Chung-Ang University |
| 2011.09 | – | Present | Professor, Department of Applied Statistics, Chung-Ang University |
| 2006.09 | – | 2011.08 | Associate Professor, Department of Applied Statistics, Chung-Ang University |
| 2002.09 | – | 2006.08 | Assistant Professor, Division of Mathematics and Statistics, Chung-Ang University |
| 2000.09 | – | 2002.08 | Senior Researcher, Samsung Economic Research Institute |