| 1991 - present | President, and Consulting Engineer |
| WBK Engineering Associates | |
| Concord, CA | |
| Consulting Metallurgical Engineer | |
| Testing Engineers, Inc. | |
| Oakland, CA | |
| Metallurgical, NDE and Welding Engineer | |
| Napa Pipe Corp. | |
| Napa, CA | |
| Quality Engineer | |
| Oregon Steel Mills | |
| Portland, OR | |
| Engineering Manager | |
| Bechtel | |
| San Francisco, CA | |
| Technical Manager | |
| Goodyear Atomic Corporation | |
| Piketon, OH | |
| Metallurgical Technician | |
| Batelle Memorial Institute | |
| Columbus, OH |