An individual who deals with the complex systems of todays military/civilian aircraft. Their entire mission is to make bricks "fly", and fix leaking electrons from parts, and they do it damn well. Usually pissed off individuals who are the be all end all of the sortie cock, they take and stride. Because one day, their enlistment will come to an end.
(CHIEF)Why hasn't the avionics flight fixed that flight control problem yet?
(AVIONICS EXPEDITOR)Because they fucking hate you chief! or Do I have to choke a bitch?!?!