I applied through an employee referral. The process took 3 weeks. I interviewed at Uber (San Francisco, CA) in Jul 2016
Interview
long and unorganized. The process didn't go so well, they didn't receive my assignment and didn't even let me know that they didn't. A week went by when I followed up and then they told me they didn't receive anything.
I applied online. I interviewed at Uber (Providence, RI) in Apr 2017
Interview
Applied in mid Jan, got back from a recruiter toward the end of March, accepted the offer in mid April.
I was contacted by a recruiter toward the end of March with a take home exercise for the position. After passing the take home exercise, I was interviewed by two designers at Uber. Then only a day after my last interview, I was given an offer. The whole interview experience was very profession, the recruiter was super friendly and responsive to emails!