Shimon was born in 1953 in Israel. In 1975 he graduated the Technion as an aeronautical engineer, and In 1994, he graduated the Master of Science in Management (MSM) program of Boston University and Beer-Sheba University.
In 1976 Shimon joined the Israel Air Force (IAF) as a young engineer in the area of design and development of manned and unmanned aircraft.
In 1998, the President of Israel decorated Shimon with the Israel Defense Award, for his special contribution to the defense of the state of Israel.
In 2000, Shimon was promoted to Brig. General as the Head of the IAF Material Command, and assumed the responsibility of the entire technical organization of the IAF, under the direct command of the Commander of the Air Force.
In 2004, Shimon retired from service and joined Elbit Systems, as CEO of Silver-Arrow, a subsidiary of Elbit System for unmanned aircraft systems design, production, operation and support. Later on, Shimon served as VP of Operations and VP of advanced unmanned systems development at the unmanned division at Elbit Systems.
In March 2020, Shimon joined Spaceil as the CEO to lead the Beresheet2 lunar landing program.