Onsite

A malloc Phone Screen and a Surprise Debugging Round

OpenAIMachine Learning Engineer · Onsite · Apr 2026

Sharing an OpenAI interview report. Aside from the phone screen, everything was a question I'd already seen before — because I over-prepared from question banks and cared way too much about the outcome, I interviewed badly. I really regret it. The phone screen covered malloc, which others have already shared — the details aren't much different. There were two parts: first a naive first-fit soluti…

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