One HR interview followed by two separate technical interviews. Each interview included three questions. The questions were rather easy, though they took some time to develop. Pretty standard for the industry.
Write an algorithm to produce the Fibonacci sequence without using a recursive method (constant space).
The following metrics were computed from 14 interview experiences for the AT&T Software Developer role in United States.
AT&T's interview process for their Software Developer roles in the United States is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for AT&T's Software Developer interview process in United States.