There isn't an interview process, really. A simple screening and then you fill out the paper work and you're ready to go.
...I'm told I have to do at least thirty words so here are some random words: dragons, much, pizza, cupcakes, towels, barbell, bricks, pizza again, Game of Thrones, motorcycles, signs, astrology, movies, popcorn, books, pizza one last time, the Punisher