AT&T Software Engineer interview: a three-hour HackerRank and project code review

After applying, I took a HackerRank assessment that lasted around three hours and felt aligned with LeetCode-style medium problems. When I finished, a recruiter called to invite me to the next step. The process stayed technical and became more role specific. The next round focused more on building and explaining work I had done. I walked through a Java and Spring Boot project and had a code-revie…

Shared by a candidate · reported Jul 2026. Interview formats change; use it as a guide, not a script.