In 1954, Paisley joined Boeing. His first job was working as an engineer on the CIM-10 Bomarc. In 1959, he became head of the electronics staff for the LGM-30 Minuteman, focused on the development of a radiolaunch system. In 1961, he became engineering manager of the Minuteman missile facility at Great Falls, Montana. He later headed Boeing's efforts on the Safeguard Program and later as electronics proposal manager for the B-1 Lancer. In 1971, he became head of Boeing's Evergreen 747 Supertanker program. Finally, he was promoted to the role of Boeing's Director of Planning.
In 1986, federal prosecutors sued Paisley, arguing that a $183,000 severance package Paisley received upon leaving Boeing compromised his objectivity as Assistant Secretary of the Navy (Research, Engineering and Systems). The Supreme Court of the United States later ruled that such severance packages were not illegal.
In 1991, federal prosecutors indicted Paisley for receiving bribes during his time as Assistant Secretary of the Navy (Research, Engineering and Systems). In the course of pleading guilty, Paisley admitted that he had received hundreds of thousands of dollars in bribes from an Israeli manufacturer of pilotless reconnaissance planes (Mazlat, which was a joint venture of two Israeli firms, Israel Aircraft Industries and Tadiran Ltd) and for providing confidential information to allow the Sperry Corporation to enable them to win a bid for the Aegis Combat System. Paisley was sentenced to four years in prison and fined $50,000.
Retirement
Paisley was released from prison in 1995. He spent the rest of his time painting and collecting World War II films. Shortly before his death, Paisley was a consultant for Shooting War, a two-hour documentary about World War II narrated by Tom Hanks.