Co-op Student (1967-1969)
Aerospace Engineer, Engineering Directorate
Subsystem Manager - Integration Manager, Solid Rocket Booster separation system, Space Shuttle Program
Head, Flight Debris Team, Space Shuttle Program
Lead Engineer, Concept Development Group, Space Station Task Force, NASA HQ
Asst. Manager (Engineering) - Manager (acting), Systems Engineering & Integration, Space Station Program Office
Special Assistant for Space Shuttle, Engineering Directorate
Deputy Manager, Mars Rover Sample Return Project
Manager, Lunar & Mars Exploration Program
Assistant Administrator (acting), Office of Exploration, NASA HQ
Director for Space Exploration (acting), Office of Aeronautics, Exploration, & Technology, NASA HQ
Manager for Technical Projects, Space Station Projects Office
Architect of NASA Strategic Plan, Office of the Administrator, NASA HQ
Deputy Center Director - Center Director (acting), NASA Stennis Space Center
Associate Center Director (Space Development & Commerce), NASA Johnson Space Center (2002-2005)
Consultant on space exploration to museums & themed attractions
VP, NASA Account Manager, SAIC
