I had an initial interview , then was sent to the desired department to be interviewed by the department supervisor. I was sent in the office asked to have a seat, the interviewer was very respectful and cordial. I was asked few questions then asked to wait for their response. They contacted me shortly within a couple of days to start.

Fairly easy. More like a conversation than a formal interview. Do not worry about having to sound the most formal or the most educated person in the world, they just want to know if you can do the basics of the job.