 Mulyono graduated from "Akmil" (Indonesian Military Academy) in 1983 and first served as platoon commander in Sulawesi (712nd infantry battalion, 7th Military Regional Command).He later became company commander and operational officer before continuing to advanced officer education in Bandung, staying there as a member of the teaching staff until 1995.His career carried on and he became battalion commander in 1st Military Regional Command by 1997, and then was promoted to commander of the Samarinda military district (part of 6th Military Regional Command) in 2000.