Short notice interview, that lasted an entire day. Had to do multiple tests for both knowledge and personality. Overall not a hard interview but overly involved and time consuming. They could easily keep the important parts to make sure you are a good fit for the job and cut out all of the additional non-value add portions.

Was contacted by one recruiter about a different position, and I said that I wasn't interested in the particular position that they contacted me for, but I saw that they did have other positions that interested me. I was put in touch with a different recruiter for that area, and had a 30-45 minute phone conversation. I got an email a day or so later to set up a phone interview with a lead engineer in the department where the job was located, and had another 30-45 minute phone conversation. It wasn't too challenging technically, mostly focused on my work history and experience. The interviewer said that he'd like me to come in for an in-person interview, and that the recruiter would contact me to schedule it. That was the last I heard from Polaris, over a month ago. I tried on several occasions to follow up with the recruiter and left voicemails and sent emails, but have never been returned. Not very professional IMO.