Once you apply, they generally call you within a week or so. There are usually always positions to fill, so interviews are pretty constant. They do a quick phone interview just to make sure that you're qualified and able to hold a conversation. They will then usually schedule you for a person to person interview at the same time. When you go in for the interview, usually a couple of different managers from different departments will interview you. I did two interviews with four different managers when I was on site for the interview. After all of that, they'll call you about a week later with a decision and as to which department you'll end up in.