I applied through university. The process took 5 days. I interviewed at Uber in Jan 2016
Interview
Initial round was an aptitude test followed by a round consisting of data interpretation of a CSV file using MS excel. Then there was a video interview round where you have to upload videos of yourself answering questions through a webcam
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