Uber was far too slow throughout the entire process. They told me in mid-September that they wanted to interview me, and from the very beginning, I told them that I had a deadline of November 1st with other companies.

It took them almost an entire month to finally schedule the interview. During this time, I contacted my recruiter multiple times, reminding him of the deadline. He assured me that I could complete the process with Uber in time.

When they finally got back to me, the phone interview was scheduled for mid-October, which I passed. Afterwards, I received an email asking me to provide my availabilities for an onsite interview. I listed them, but the only time they had listed was the end of October.

I responded within minutes of receiving the email, asking for the earliest of the days they listed, but also inquired if it was possible to do it earlier. Instead, they took a full day to respond, informing me that the day I chose was full and the earliest I could schedule was days later. As a result, I was unable to do the onsite interview.

Standard algorithms questions. Reading "Crack the Coding Interview" really helps.