Los Alamos National Laboratory, Staff Member, 1973-1975
Assistant Group Leader, 1975-1977
Group Leader 1977-1979
- Group Leader and Program Manager, 1979-1980
Assistant Division Leader and Program Manager 1980-1981
Associate Division Leader and Program Manager, 1981-1986
Program Director for Magnetic Fusion Energy, 1986-1989
Program Director for MFE and Division Leader for CTR, 1989-1991
Program Director for Nuclear Systems 1991-1993
- Staff Member, 1993-1994
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- UC Coordinator for S&T, 1994-1997
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- University of California Office of the President, Associate Vice Provost for Research and Laboratory Programs, 1987-2001
- Associate Vice Provost and Assistant Vice President for Laboratory Programs, 2001-present
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