I have been working at US Air Force full-time
Good benefits, Mon-Fri, 0730-1630, tuition assistance
No room for advancement at particular location
I applied through a recruiter. The process took 3+ months. I interviewed at US Air Force.
Go to your nearest recruiter, fill out application paperwork, take asvab and receive a qualifying score, select a job as an avionics technician, meet physical examination and age requirements at MEPS, complete basic training and tech school, and voila you're an avionics technician in the USAF.