Glean (CA) Backend Engineer interview: multiple one-hour DSA rounds

I started with an introductory round with the hiring manager and then met with the head of engineering. After that came multiple coding and DSA rounds, each lasting around an hour. The setup felt condensed but clear. They moved from conversation into hands-on technical evaluation pretty quickly. The process was described as difficult, and the structure reflected that. Instead of one challenge, I…

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