Listed as full time position under their job posting site, only found out in interview that its for an internship. Questions were based around it being an internship as well.

I applied online. Several weeks later I was invited to do an online interview where I recorded my response to several questions without interacting with an interviewer. A couple of months later I was rejected.

Had one interview that lasted about half an hour. He asked me some practical questions about why I would want this job and about my excel ability. Then I had 3 interviews back to back, each about half an hour where they asked more higher level questions.