Sign up online and then you get a phone call, then you talk with the manager. It is very casual and more about getting to know if you and if you fit the culture. They also let you ask plenty of questions. After the interview I got a phone called followed up by a written offer letter.

Invited me out to get to know me. It was casual meet and greet at a restaurant. Asked what I liked to do and what certs I have. Loved it.