Uber

HR contacted me via job referral. After a short chat with HR, a phone screen was scheduled. After the phone screen, about two days passed before I received the rejection email from HR. The whole process was very fast and efficient.

The interviewer had to cancel because they couldn't find a room to interview in. I had a pending deadline, so I asked the recruiter if making the deadline was possible. The recruiter dodged the question multiple times.

Online round then 3 rounds of technical interviews consisting of problem solving and core subjects knowledge. They were of average difficulty level with most of the questions as provided as standard ones on popular sites.