I applied through an employee referral. The process took 2 months. I interviewed at Uber (San Jose, San Jose) in Sep 2018
Interview
Several rounds of interviews: first an HR screening, then an interview with the hiring manager and lastly a panel of 4 interviewers where I had to present an exercise that I did in advance.
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