| Position | Organization | Date |
|---|---|---|
| Professor | University of Western Ontario | 1995 - present |
| NIST Guest Researcher | National Institute of Standards and Technology, Gaithersburg, USA | 2022 |
| Fulbright US-Canada Research Chair | Vanderbilt University, Nashville, USA | 2022 |
| Assistant Professor | University of Western Ontario | 1985 - 1990 |
| 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 20 Years
1) Senator of the University Senate (2011-2014)
2) Director of theoretical physics program (2000-2006, 2010-2014)
3) Co-Director of Collaborative Ph.D. Program in Theoretical Physics (2000-2006)
4) Director of the center of chemical physics (2000-2003)