The Aediles were the roman officials responsible for building...

The Aediles were the roman officials responsible for building and maintaining infrastructure,
having said that - every roman legionnaire was a builder in his own right. Caesar's legions were responsible for some significant engineering feats such as the bridge across the Rhine and the Alesian siege containment walls.

The Pantheon was also considered a major engineering feat for its time with its interesting use of concrete in its ceiling


I'm glad this is a humour forum