HR contacted me a few days after I had applied and set an interview time for the next day. HR told me who I would be interviewing with as well.
The interview took about an hour with the supervisor and lead technician.
After the interview they had proceeded to show me the office that I would be working in and giving me a basic run down of the daily tasks that they do there. They had asked me to hang out as long as I would like. I ended up staying there for another hour and a half.