I was scheduled for a 30-minute long phone screening that actually lasted 20 minutes. There were some basic questions on experience from my resume and then a simple technical quiz. It was very laid back overall.
The interviewer sounded uninterested but was very happy to talk about the internship program and campus, so I might have misjudged his tone of voice. I got offered a second-round video interview, so we'll see how that goes.
OOP concepts, stacks/queues
The following metrics were computed from 1 interview experience for the AT&T Back-End Developer role in El Segundo, California.
AT&T's interview process for their Back-End Developer roles in El Segundo, California is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for AT&T's Back-End Developer interview process in El Segundo, California.