I worked at University of Missouri (More than 5 years)
Flexible hours and great benefits
Don't like to give overtime
I applied through college or university. The process took 2+ months. I interviewed at University of Missouri (Columbia, MO) in March 2011.
You go through group training first, which is basically a test to see how sociable you can be. My advice is to just be friendly and outgoing during the meetings, they're easy enough to get through.
Afterwards, you interview with specific Hall Coordinators, This is a standard process, but most HCs will only hire candidates they have interviewed personally, so pick your hall carefully.