I applied online. The process took 4 weeks. I interviewed at AT&T (Dallas, TX) in Mar 2018
Interview
Total 2 rounds.
1. Recruiter call
2. Coding interview (2 questions) and questions on resume like projects you worked on, areas of interest, can you work in an open culture, etc
Interview questions [1]
Question 1
1. Fibonacci series and variations of it
2. String manipulation
Time and space complexity