Uber Software Engineer interview questions

Mine was Android Developer role. Had two interviews, 1. Phone round (1 hour) 2. Onsite - 90 minutes coding exercise (Android) - 1 hour code review - 4 rounds of interview (1 non-technical/behavioral, 3 technical)

Did well on the Code on the Road test. Then, 45 min tech interview which went well enough for onsite. First interviewer asked some background questions, and asked a pretty basic system design question. Second interviewer asked about best/worst projects. I can honestly say this was one of the best interviews I have ever had. Immediately after second interviewer, someone came in and told me I wasn't accepted. Extremely embarrassing, and a little infuriating. I think the first interviewer was turned off by my inexperience working in full-stack development (I hadn't worked with databases extensively). I don't think they could have possibly taken into account the second interviewer's opinion, because it was seconds after he left. One interviewer's opinion is not enough to reject a candidate. To have come all the way and to be turned away not even halfway through the interviews is very disappointing. I was going to use Uber's offer to increase my offer from Google, so it's not too upsetting, but it would have been nice to have that.