I applied through a recruiter. The process took 3 weeks. I interviewed at Vivid Seats in Jan 2013
Interview
They basically threw a gigantic net out (I was contacted by multiple recruiters about it and saw their ad in increasingly more places as time went on) and then (I heard) hired internally somehow and simply stopped considering other applicants. Regardless, I never heard any feedback which leads me to suspect they found somebody good enough and then decided they didn't want to deal with the recruiting Crusade they kicked off for the position. Given that their process actually involves a take-home challenge/test, I suspect they wasted a lot of people's time.
I'm not outraged or anything but I do think that if you're going to have a more involved interview process than is typical, you need to think about the fact that people are prioritizing your opportunity over finding leads or prepping for other hiring processes that might be more involved than is typical.
Interview questions [1]
Question 1
Nothing tough as far as I got. They started with a short HR interview to make sure it was a job you'd actually be interested in and moved to a take-home code test where you can select from a wide variety of questions/challenges to complete. I actually like the take-home thing. I think it's a smart way to go. I put about 3 hours into mine. But really, I have no idea if they even looked at it.