After a director of Talent acquisition reached out to me, and asked of I'm interested. I sent over my resume and portfolio. He then got the product manager to review it, and since he liked it, he asked for a quick call. We later proceeded with a phone screening call with the product manager, and then I had to go to do a 3 hours in person interview.
The interview consists of 3 sessions. The first 45 minutes will be a call with a UI developer.
The next 45 minutes will be with a product manager (technically your boss). And the last hour the whole UXD team will join the product manager, and will go over some of your portfolio work.