Received a phone call from one of the managers, and was quickly able to set up an interview for the next day without any issue. When I arrived, the interview was done in one of the presentation rooms, but the interview itself was one on one with at least four different people. Everything in the office was very laid back - I was the most formally dressed person in the entire office. The interview itself was also very laid back, but don't let that fool you. The interview consisted of meeting up with four different interviewers, plus the head manager. Each of them asked a different set of technical questions, most of them pertaining to Linux/Unix. They also tested my troubleshooting skills. Interview took approximately two hours, but I only found out at the end that they were looking for night and evening tech support, which was impossible for me to do. Still a very informative experience.

Have to know fundamental network protocols like http, https, dns, smtp, ssh and what ports they use. Having a cert is a plus like CCNA or CCENT but not necessary. Have a background of Networking.