| Position | Organization | Date |
|---|---|---|
| Professor | University of Western Ontario | 1995 - present |
| Associate Professor | University of Western Ontario | 1990 - 1995 |
| Assistant Professor | University of Western Ontario | 1985 - 1990 |
| Chief Researcher | Central Research Lab,Hitachi, Tokyo, Japan | 1992 - 1993 |
| Visiting Professor | Texas Center of Superconductivity | 1992 |
For the past 5 Years
1) Director of the center of chemical physics (2000-2003)
2) Director of theoretical physics program (1998-2000)
3) Associate Director of theoretical phyiscs (1996-1998)
