1977-1978 Union Carbide Corp, Y-12 Central Engineering, Instrument Engineer.

1978-1988 Tennessee Valley Authority, various positions Including Engineering Design, Data Services Microprocessor Lab, Watts Bar Nuclear Plant Engineering and Training Management positions.

1988- 2012 Oak Ridge National Lab, High Flux Isotope Reactor-Operations Analyst and Plant Manager, Facilities and Operations Directorate-Engineering and Technical Support Manager.