Readdy is also currently a member of the board of directors of Astrobotic Technology, a Carnegie Mellon University spinoff company that is competing for the Google Lunar X Prize.

Federation Aeronautique Internationale awards include: the Kamarov Diploma (STS-51), the De la Vaulx Medal (STS-79) and a World Record Certificate (STS-79).

Following fleet training in the A-6 Intruder at NAS Oceana, Virginia, he joined Attack Squadron Eighty-five aboard the aircraft carrier USS Forrestal deployed to the North Atlantic and Mediterranean from 1976 until 1980.

Readdy joined NASA's Johnson Space Center in October 1986 as a research pilot at Ellington Field, Houston, Texas, where he served as program manager for the highly modified Boeing 747 Shuttle Carrier Aircraft.

He served in numerous support roles including: Training Officer; Safety Officer; Operations Development Branch Chief; NASA Director of Operations, Star City, Russia; Stafford Task Force; and the first manager of Space Shuttle Program Development charged with upgrading the Space Shuttle.