Uber Software Developer interview questions

Was contacted by HR who were very warm before the interview (but did not reach me to share outcome till I insisted). Typical telephonic (coding/problem solving), onsite (DS and Algos), System Design, Hiring Manager, Bar Raiser.

Very helpful recruiter and totally arrogant interviewer (also confirmed by some current and ex-employee that a lot of people from Uber are considering themselves as the smartest guys in the universe), although he was speaking polite and friendly, he provided feedback: “not sure about naming variables” (that was rejection reasons) even if I have solved problem in optimal time and space complexity. Was white board problem solving test.