AVRO Engineer
Engineer, Aerodynamics/ Navigation and Guidance Sections, Flight Systems Division (Mercury Program)
NASA Engineer, Resident Apollo Spacecraft Program Office (RASPO), North American Rockwell Corporation (Apollo Program)
Staff, Quality Assurance, Reliability, and Safety Office (Apollo Program)
JSC Resident Representative for Orbital Workshop, McDonnell Douglas Corporation (Skylab Program)
NASA Resident Manager, Rockwell International (Space Shuttle Program)