[4] His first recorded office was quattuorviri viarum curandarum, one of the magistracies that comprised the vigintiviri; membership in one of these four boards was a preliminary and required first step toward gaining entry into the Roman Senate.
This was followed with his commission as military tribune with Legio I Minervia, stationed at Bonna (modern Bonn), in Germania Inferior.
[6] Then Maximus was commissioned legatus legionis or commander of Legio III Gallica, which was stationed in Syria.
[7] After returning to Rome, he was appointed prefectus aerarum Saturninus, which Alföldy dates between the years 153 and 156.
[10] In that later year Marcus Jallius Bassus became a member of the Emperor Marcus Aurelius' comes or inner circle of advisors during the Parthian War, and Maximus was appointed to replace him as governor of Moesia Inferior; according to Alföldy, he held this governorship until the year 166.