Quintus Julius Cordinus Gaius Rutilius Gallicus

Gallicus' first known post was as military tribune of Legio XIII Gemina, which he is attested as holding in 52.[6] This was followed by the Republican magistracies of quaestor and curule aedile. He then served again in the military as the legatus legionis, or commander, of Legio XV Apollinaris during the reign of the emperor Claudius. During Gallicus' term as commander the legion was stationed in Pannonia.[7] Following this he was assigned to govern the province of Galatia in central Anatolia.[6] In 68 Gallicus was co-opted into the sodales Augustales, the collegia of priests.[8] This role was important to the Julio-Claudian dynasty, and the appointment is a clear indication that Gallicus was favored by the emperor Nero.[8]

In addition to being favored by Nero, he was also well regarded by Vespasian. Gallicus was appointed consul by Vespasian very shortly after his arrival in Rome as a new emperor. The consulship was considered the highest honour the Roman state could bestow, and Vespasian would have made such appointments carefully, to reward loyalty and to consolidate support. Gallicus would have served alongside a fellow consul, but who this was is not recorded. During Vespasian's reign Gallicus was admitted to the College of Pontiffs, again a sign of the Emperor's high esteem.[9]

He was Proconsular Governor of Africa in 73/74.[10] Although being proconsul of Africa or Asia was considered a senator's highest and usually the final step in imperial service, Gallicus is known to have been Governor of Germania Inferior from 76 to 78.[11] He was appointed consul for a second time seven years later by the emperor Domitian, serving with Lucius Valerius Catullus Messalinus. Gallicus' final office was urban prefect of Rome, which he held around 91.[12]