I applied through a recruiter. I interviewed at AT&T
Interview
First part was a hackerrank (all leetcode easy/medium). Second part was an HR phone call. Third part was submitting a project about OOP. Fourth part was a technical interview asking questions about the project + just other general questions. And last round was a HR phone screen.
Everyone was so amazing and the process was pretty quick (around 4-ish weeks)
Interview questions [1]
Question 1
OOP design principles, data structures + algorithms
Unprofessional. Interviewer kept delaying and rescheduling within the same day. I waited all day to interview. After that, the technical was kind of simple. Asked basic OOP questions and basic style leetcode. Also asked system-design related questions.
Interview questions [1]
Question 1
What is inheritance in object oriented programming?
I applied online. I interviewed at AT&T in Dec 2025
Interview
The interview process had 3 rounds consisting of an initial HR round, a Technical round with 2 team members, and a final HR round.
Technical round involved a pandas and SQL question with live hackerrank coding and questions after it.
Interview questions [1]
Question 1
What would happen if part of a SQL statement was changed? (During technical round)
Initial technical assessment where we received a dataset and had to extract information from it, mostly data science libraries used. Language was python, on Hacker rank. Behavioral interview was on the phone about thirty minutes.
Interview questions [1]
Question 1
Describe a past misunderstanding and how you resolved it.