His actual job isn't really transferable. It's just not something people do in the civilian world.BUT he has a lot of management experience and will continue to get more and there's specialized jobs within the government that he wants. But he'd take an aviation safety or management job too. He'll also look at contractors, but doesn't want to do that long term as it's not as stable. He's pretty much a desk jockey and supervisor for the rest of his career at this point.
None of the people I work with transfer. They leave the military and get a job either with industry (contractor) or the government (CIA, Navy Dept, etc). They have to be out of their military job for 6 months, then can come back and work as a civilian or contractor (assuming there's an opening and they get hired). This also works when they retire from the government and go to work as a contractor. There's several people that have retired from the military, came back as a govie, then retired from government and came back as contractors. They're getting 2 retirements and still working (they're old. lol)