| 1988 - present | Metallurgical Consultant |
| Coates Engineering Services | |
| Woodland Hills, CA | |
| 1987 - 1988 | Principal Engineer |
| General Electric – Nuclear Energy | |
| San Jose, CA | |
| 1985 - 1987 | Associate Consulting Engineer |
| L. Raymond and Associates | |
| Irvine, CA | |
| 1982 - 1985 | Director of Laboratory Operations |
| Mettek Laboratories | |
| Santa Ana, CA | |
| 1980 - 1982 | Post-doctoral Research Fellow |
| University of California, Berkeley | |
| Berkeley, CA |