By phone, with a HR recruiter first, an initial call and then a second one more extensive. A week later a conference call with two managers of the area. General questions, about experience, how to deal with co-workers, how I would manage a situation with somebody "difficult to deal with).

The hiring process is very simple and easy. If you make it for an interview, you got the job. The interview I had was management telling me what i was going to do, and told me to make sure I have music to listen to as the offshifts get boring. I will be expected to stay awake the entire shift that I was scheduled to work, but music is allowed.