Aircraft Maintenance Engineer and Aircraft and Powerplant mechanic are the same thing. Kind of like ATP vs ATPL vs the old ATR (airline transport rating, not the airplane)I would think. Is API a crew leasing company or a crew finding company? Crew leasing usually take your hard earned cash each month while the latter find crews for companies for a one time finders fee, paid by the airline normally. Some will even 'find' pilots (and I assume AME's) for crew leasing companies, thus extending the line of middle-men taking a piece of your paycheque.