AT&T

Two telephone interviews followed by one in-person interview.

I think there was an online challenge, then a friendly phone interview or call with a recruiter where they asked you about your activities. Then there was a short onsite where they asked behavioral and a technical question.

First round was the online written test, which had some aptitude, reasoning, and Unix-related MCQs, and two coding questions. Next was a technical interview where they asked me to tell them about my technical skills, my experience at college, and qu