For sure, speaking for the Navy (though I'm sure the same applies for the other services as well). Cryptologic/electronic/nuclear fields are all known to be cash cows after getting out. Granted, you need to score well on your ASVAB, especially for nuclear fields. But the ASVAB can be studied for and is probably the easiest of all the standardized tests someone that age may face in my experience.
Not asking for myself. I am a high school English teacher, and I am currently helping a young man with his application to the academy. He is committed to the Air Force either way, but I try to pass along any information that I come across (with the caveat, of course, that I don’t know what I’m talking about).
I joined Air Force active duty for a 4 year hitch when 9/11 happened, and was in the Air National Guard for a few years after my initial enlistment. I mention that because some things may have changed since I've been out more than a decade, but I don't think they have. Individual job descriptions do change though, so I will only give high-level advice rather than specific AFSC/MOS.
I went into Satellite, Wideband, and Telemetry Systems, commonly called SATCOM (although we did have wideband terminals like the TRC-170 and the GRC-239 TSSR). It could be lucrative with the right experience, but for most people it wasn't (although I was able to get a civilian job pretty easily with the skills/training but it wasn't highly paid).
The Air Force has deepened their cybersecurity expertise quite a bit, and even has some great opportunities for enlisted airmen. That can be a very lucrative field when you get out (and is also badass while you're in, from what I'm told). This is a very lucrative field if you're good at it, and still a good living even if you suck. Before doing this, be confident that the person considering this would be able to get a TS/SCI clearance. Read the requirements and make sure they aren't disqualified. If they've smoked pot before but no longer do, they have never smoked pot ;-). If can't get a clearance, opportunities in the service will be limited and some specialized training will not be accessible.
Some people will say "linguist" but it has not been my experience that that is all that usable outside the military unless you want to work for State (US State Department). If you are really, really good you can find lucrative opportunities though.
Anything nuclear is also pretty good if you can get it. Aircraft mechanic can be good, but the number of employers isn't huge and you'll work your ass off while still in the service.
From experience, nuclear is not good. The career field has some of the lowest morale in the whole DoD, both officer and enlisted. Postmil options are only available if you have advanced degrees and are highly geographically limited (national laboratories, some contractor sites)
Speaking as an Army Cyber guy who is also a reservist (about to get out, so FWIW); the Army Cyber programs are not good. The (US) Army Culture is bad, very bad. Sure, if you're intelligent and enterprising you can have a path to getting some awesome training; however, the reality is most of the Army is really, really, really dumb. Senior Leaders at the G-Staff level (O6 & >) will have very little understanding of the value to the mission, will constantly think Cyber <> Tech. are interchangeable disciplines and will be FAR FAR more focused on how high you can score on the fitness test than your actual ability to do the work (mission).
The missions I've gotten to be a part of were awesome; however, I could have experienced just as much "cyber knife fighting" in the civilian world had I taken that track (perhaps more, because less rules) and I would have had a lot less bullshit.
Now, I'm a physician, and I'd say this - my residency was more bearable than the last 19 years in the army guard. I'm happy to be getting out soon, and while I will miss the friends I've made, I won't miss the organization as a whole.
I'll say the unpopular but hard truth. Relative to other nations, US DoD Cyber Forces by and of large part are woefully inadequate and unprepared for the real cyber fight. Sure, bright exceptions exist at the 3 letter agencies, and the occasional few people in the uniformed services - but these folks are rare, and they rarely stick around long. There is a lot of Cyber "showmanship" and BS, and most people are dis-incentivized from telling the truth about how bad at is - because they all want the prestige to help them attract high paying civilian jobs. I get it. But, I'll say the US taxpayer should be very concerned about how so much money was spent for frankly so very little.
The average US Army Cyber soldier can't even explain how an exploit works, technically. Moreover, they have a complete lack of cloud training or concepts or really any depth at all. Yet, they have all convinced themselves that if "cyber 9/11" happened - they'd somehow be useful to civilian companies, city governments and utilities beyond getting the people who know what they're doing some coffee. And this is a shame, because 15 years ago the potential existed for this to be much better; but a lack of new leaders who understand tech, greed and the DIB machine have made the situation unbearable.
I feel sorry for the United States. We could have done so much better, but real systemic change in the Army seems absolutely impossible. I still hear racist, homophobic and sexist jokes on the regular - despite the big push for "zero tolerance". The DOD hasn't, and likely won't ever change. It is simply too big and too slow and too entrenched.
Plenty of options. Any sort of intel field, lots of technical or mechanic fields -- some of them like fixing F-18 radars, are serious door openers; even diesel mechanics can do well as a civilian -- and plenty of less shooty roles, like dental or x-ray technicians, electricians, satellite techs, etc.
I know dudes who went into the AF and USMC and ended up as programmers, to include 1+ years of coding training.
Meanwhile the infantry guys end up as cops or security guards, lot of the logistic guys end up as truckers, etc.
