I had one ~30 min interview with a recruiter. The recruiters have 3 set questions they ask everyone and that's it. My interviewer was on a bus and had their camera off during my interview. It was all very distracting and there were a lot of background noises. I was very put-off by it and felt they didn't respect me as a candidate. Oh, and this was after they had to reschedule the interview 3 times. Fast forward to nearly 2 months later, I got a few rather useless update emails saying they still had no decision on my application. And then I was finally rejected. If you have other offers just take them and don't wait for a response from AT&T.

Unprofessional. Interviewer kept delaying and rescheduling within the same day. I waited all day to interview. After that, the technical was kind of simple. Asked basic OOP questions and basic style leetcode. Also asked system-design related questions.