Uber Sr. Software Engineer interview questions

Recruiter reached out to me via email. Scheduled first screening. All following interviews were virtual. Had another call with HR representative. After this call first tech screening call. One medium level question for 45 minutes. Passed this round. Scheduled virtual on-site. 5 rounds 1 Behavior question 2 code 2 architectural rounds. Scheduling was horrible interviewers rescheduled two of 5 rounds I never was notified. Need to reach out to the scheduler to understand what was going on. One of the interviewers didn't know what type of interview we had. After I was done during the walk out I was told I will be notified in two weeks. No one ever came to me. HR don't answer the phone nor email. Interviews themselves were normal and helpful no complains. The process of scheduling and responsiveness is awful.