I applied through a recruiter. The process took 3 weeks. I interviewed at Lithium Technologies (Austin, TX) in Mar 2016
Interview
I had an initial phone screening, then spoke with the UX lead at the Austin location. After that I was given a design exercise and then had an interview presenting my response to the exercise to the whole design team and then one-on-one interviews with each team member.
Interview questions [1]
Question 1
They asked me to respond to a design question/challenge and how I would go about solving it.