AT&T Software Engineer interview questions

Overall 2 part process. First HR gives you call and read through the requirement and ask if you are experienced in it or not. Then resume is sent to the team and if they like your resume they invite you for in person interview. In second part, they ask you do to white boarding. They are looking for scalable/ high performant solution from you. All about threads/thread pool / concurrency. Overall, they are trying to prove they should get people from their India office as people here are not fit for the work they are doing. All Indians in the development team. In fact i saw no woman on the floor except for HR on that day.

First had a 1 hr phone interview where I coded interactively through this website so they could watch as you type, then a 3 hr final interview split into 45 min chunks. Entire thing was technical, but each person focused on a different language