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AT&T interview notes, page 4 of 6

Large Enterprises

Most of these AT&T write-ups come from Software Engineers (56), then Data Scientists (1). The most reported rounds are the technical phone screen (15), the hiring manager screen (14), the system design round (7) and the multi-round onsite (6).

57 interview notes · updated Oct 2026

AT&T·Software Engineer·Onsite - Coding / Algorithms

Jul 2026
Applied for a senior dev role and got asked to build a React app on the spot. Bombed it. Been coasting for too long and my skills across AWS, Java, and React are all half-baked at this point.
  • Complete a React application as part of a live coding exercise.

“I've built React apps before, plenty of them, but muscle memory is a real thing and mine had completely atrophied.”

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AT&T·Software Engineer·Onsite - Behavioral / Leadership

Jul 2026
Behavioral round that went sideways fast. Gave an honest answer about a past mistake and got interrogated about it like I'd confessed to something serious.
  • Tell me about a mistake you made or something you would have handled differently, and what you took away from it.

“Answered it straight, picked something real but minor, and they came back with 'why did you do that?' and then 'is this a pattern for you?' Felt like a trap I walked into by being honest.”

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AT&T·Software Engineer·Technical Phone Screen

Jul 2026
Absolute disaster of a technical screen. Couldn't think straight, blanked on basic logic problems, and walked away genuinely embarrassed for myself.
  • Write a boolean condition to check whether at least 2 out of 3 values in a list satisfy a given criteria.

“I froze.”

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AT&T·Software Engineer·Technical Phone Screen

Jul 2026
IT interview that went sideways, capped off by a question that felt completely out of left field. Walked out feeling pretty deflated.
  • What is your favorite troubleshooting tool?

“Said ping and traceroute and immediately regretted it.”

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AT&T·Software Engineer·Technical Phone Screen

Jul 2026
Went through a coding interview for a senior role and came out frustrated. The interviewer kept jumping in with hints mid-problem, then the feedback said I didn't lead enough. Hard to lead when someone's steering the wheel for you.
  • Is it appropriate to ask an interviewer upfront to hold off on giving hints during the session?

“This is the thing I keep going back and forth on.”

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AT&T·Software Engineer·Hiring Manager Screen

Jul 2026
First ever interview for an IT Technician role at a company servicing state lottery machines in Connecticut. The interviewer was condescending from the jump, the power went out mid-interview, and after being asked to come back the next day, nobody even knew I was supposed to be there. Eventually a rude receptionist told me the job was filled. A genuinely terrible way to start an interview career.
  • Do you have experience working with modems or dial-up communication hardware?

“I paused for maybe two seconds to think and the guy repeated it back at me like I was an idiot.”

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AT&T·Software Engineer·Hiring Manager Screen

Jul 2026
First round interview for an inside sales role, set up through a recruiter who did a prep call beforehand. Went okay until it didn't, and one question basically unraveled my composure for the rest of it.
  • Walk me through what your typical day-to-day looks like in an inside sales role.

“This is where I fell apart.”

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AT&T·Software Engineer·Onsite - Multi Round

Aug 2026
Two interviews back to back, one of which I really wanted despite a security clearance issue that might kill my chances anyway. The behavioral stuff felt smooth, the technical part was mostly fine except I fumbled a bug-finding question in a way that still bugs me.
  • Given a code snippet, identify the bug in the logic.
  • Behavioral questions drawing on past experience and specific situations from your work history.

“I actually walked through the whole thing line by line, explained what each section was doing, even predicted the output.”

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AT&T·Software Engineer·Onsite - Cross-functional / Panel

Aug 2026
Four rounds for an entry-level Apple Platforms role, and the technical panel spent the whole time asking me Windows and Linux questions. Never once touched macOS. Got rejected, then watched them repost the exact same job listing the same day.
  • How would you troubleshoot a driver installed via an .INF file that is causing boot failures on a Windows machine?

“My brain just stopped.”

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AT&T·Software Engineer·Hiring Manager Screen

Aug 2026
Interviewed for an Engineering role near Chicago while living out of state. Mixed feelings coming out of it, stumbled on one question, but a follow-up call from the recruiter two days later has me second-guessing my pessimism.
  • Describe a time you identified an opportunity for continuous improvement and what you did about it.

“This is the one I'd like to forget.”

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