Uber Sr. Software Engineer interview questions

Called inhouse for about 7 rounds of interview. 4 totally technical, 2 tech+behaviour and one HR round. They seemed to be interested in hiring me (evident from them making me meet upper management) but then didn't offer.

Multi round interview. Started with online meeting with online editor. Had to switch camera on for some company policy - don't understand the real reason for not trusting the candidate. Expectation was to get correct output code for 2 problems in 40 mins - seems unfair considering you are coding on unfamiliar web IDE. Went ok for me. Following is onsite interview review. 4.5 hrs spent on site for 3 interviews. Overall experience is marked negative because 1. I felt interviewers were rigid on expected solution on a non-calibrated design question. I still doubt their solution will work. Read thru answers to think about details. 2. Compared to other companies in this pay bracket the interview was unstructured (leave out coding round). 3. The reason for rejection given to me was not even checked in interviews.