His technical assignments have included: Astronaut Office representative for all Space Shuttle issues related to landing sites, landing and deceleration hardware, including improvements to nosewheel steering, brakes and tires, and drag chute design; Shuttle Avionics Integration Laboratory (SAIL), which oversees, checks, and verifies all Shuttle flight control software and avionics programs; Technical Assistant to the Flight Crew Operations Director who is responsible for and manages all flight crew operations and support; lead of the Astronaut Support Personnel team which oversee Shuttle test, checkout, and preparation at the Kennedy Space Center; Special Assistant to the Director of the Johnson Space Center in Houston, Texas; lead of a Functional Workforce Review at the Kennedy Space Center, Florida, to determine minimal workforce and management structure requirements which allow maximum budget reductions while safely continuing Shuttle Flight Operations; Director of Space Station Requirements at NASA Headquarters, responsible for the International Space Station requirements, policies, external communications and liaison with Congress, international partners, and industry.