I met them at Career Fair, they gave me a code to apply online. They got back to me within a month.
The first interview is over the phone with one HR representative. At the end of the interview, they will tell you if you pass the interview (I don't know what would happen if you don't).
After a few days, you'll receive the email to schedule for in-person interview. Which you will be interview with most people of the department, it usually takes 2 hours, so be mentally prepared.