PROFESSIONAL EXPERIENCE
| 1999-present | Associate Director, Computational Science Research, San Diego Supercomputer Center, UC San Diego |
| 1997-present | Sr. Principal Scientist, San Diego Supercomputer Center, General Atomics, La Jolla, CA |
| 1997-present | Adjunct Professor, Department of Pharmacology, UC San Diego |
| 1997-1999 | Manager, Science Department, San Diego Supercomputer Center, UC San Diego |
| 1994-present | Research Chemist, Department of Chemistry and Biochemistry, UC San Diego |
| 1994-1997 | Associate Adjunct Professor, Department of Pharmacology, UC San Diego |
| 1988-1994 | Specialist in X-ray Crystallography, Department of Chemistry, UC San Diego |
| 1988-1997 | Senior Staff Scientist, San Diego Supercomputer Center, General Atomics, La Jolla, CA |
| 1985-1988 | Systems Engineer, ABLE Computer, Irvine, CA |
| 1983-1985 | Principal Engineer, Wespercorp, Tustin, CA |
| 1982-1988 | President and Owner, Interface Software, Cottage Grove, OR |
| 1980-1982 | Research Associate Professor, Dept. of Computer Science, Univ. of North Carolina, Chapel Hill, NC |
| 1973-1980 | Research Associate, Institute of Molecular Biology, University of Oregon, Eugene, OR |
| 1970-1973 | Postdoctoral Research Fellow, Medical Research Council Laboratory of Mol. Biology, Cambridge, England |