I will piggy back on cmakin. I am not a grad of USMMA, but (I did sleep in a holiday inn express last night. lol.) I do run into graduates a lot, both on shore and out at sea, and have been on the outside looking in, at their golf tournaments, and such, for the 12-13 years or so they have been having them. From the outside looking in, it just seems that if you are going to sea, either blue or brown water, there are spots for deck and engine. On shore, it seems that there would be more portability for the engine rather than the deck. The engine guys I have seen are in a lot of different areas, from power plants, new energy, to propulsion methods, etc, as well as design, manufacture, shipyard, construction. The deck guys I have seen are kind of situated to surveyors (some types), insurance, brokers, lawyers.
Again, just my uneducated two cents. cmakin, I will send a pm whenever I get to the point I am allowed to.