I applied online. The process took 4 weeks. I interviewed at AT&T (Los Mochis) in Sep 2020
Interview
Coding assement --> behavioral--> take home assesment --> final interview( coding + general questions). Interviewer wasn't interested in interviewing would have gone better with some other for sure. Other than that the coding assesment was easy 3 leetcode >> path sum, house robber( dynamic programming).
Interview questions [1]
Question 1
Q. Why at&t
Q. Describe a time when you were asked to do soemthing you dont know anything about
Q. Describe a situation in which you had a misunderstanding with a colleague or manager?
Online Assessment with lc and a SQL question -> 3 part Technical (lc easy, debugging, basic oop questions and frameworks I like to use) to Behavioral (standard questions, focused heavily on teamwork and cooperation).
Passed first round interview that was in Hackerrank, about 10 questions coding in your choice of Python or R. mostly simple filters, working with a data frame, and extracting some insights. Second round was a behavioral interview, I answered all the questions using STAR format without any hesitation. Did not pass behavorial.
Interview questions [1]
Question 1
Tell me about a time you had to give a presentation with little or no preparation.
Got invitation to OA about a week after applying. 4 very easy questions, 2 math 1 programming 1 SQL. Received an invitation to schedule interview right after. Interview is with two current TDP members, and is technical, 1 coding question which was very easy, then they moved onto system design which I was not prepared for. Interviewers were nice and explained the process easily
Interview questions [1]
Question 1
How would you prepare and plan the design of a system to upper management?