I applied online. The process took 3 weeks. I interviewed at Uber in Feb 2013
Interview
Very straightforward! There is a screening, then an analytical exercise, followed by speaking with similar level folks from the local office you are applying for. I was very surprised to get a call from the recruiter after applying online but the conversation was very straight forward. Have to be able to sell yourself for that position and explain why you love the company (which isn't hard if you are an avid user!)
Interview questions [1]
Question 1
The analytical exercise is by far the most difficult.
Five to seven rounds of interviews, tests and presentations just to get a “no, thank you” at the end without much of a feedback. Acceptable for regular recruitment but not after weeks dedicated to the process.
Pretty easy at early stages - just need to know about supply and demand basics. Analytics test is harder, but manageable if you know Excel well. They are definitely interested in your problem solving abilities and ability to "get things done" with minimal supervision.
Easy and good with few layers of tech question. Overall good thing. They will ask about data and logical question. So overall process of program is required. 3 total rounds