I believe it was one initial interview, the hire-on process was rather simple. It's almost always busy in there so expect to fill out your application in a lobby area with other applicants. After filling out an application you are meet with one of the advisers for your specific area of interest and are placed with a company based on your experience. Drug and aptitude tests (if required) are given during the initial interviewing process. There might have been a background check, as well. I'm not positive on that.