2004.9.1 ~ Present | Korea University | Professor |
1999.9.1 ~ 2004.8.31 | Korea University | Associate Professor |
1996.9.1 ~ 1999.8.31 | Korea University | Assistant Professor |
1995.3.1 ~ 1996.8.31 | Changwon National University | Full-time Lecturer |
1994.7.1 ~ 1995.2.28 | SAIT(Samsung Advanced Institute of Technology) | Senior Researcher |