Chockchucker
I bet QF 380s don't get pushed back by engineers in Dxb and Lhr.
An engineer is on the headset and oversees the pushback, steering pins etc. and monitors the start and also has a final last check of the aircraft.
The fully trained pushback drivers do not have to be aircraft engineers, again what a waste of qualified resources in Oz if this is the norm.
Aso as an aside, how disrespectful some Aus posters are about baggage handlers, they are not all thieves, as all Jetstar pax are not Boguns!!