I currently do maintenance at a distribution center involving just about anything you can think of.
My "Official" job title is building maintenance/HVAC tech but I do way more than that. Whether it's conveyor equip, forklifts, electrical, inspection and testing of the fire sprinkler system, whatever is needed at the time is what I do.
When someone asks the question, I just ell 'em I'm a jackass of all trades....