Supermicro Software Engineer interview: LRU cache and eviction

A recruiter reached out and scheduled an onsite loop after an initial step. What surprised me was the length of the phone screen. It went deeply into implementation instead of staying at a broad fit level. I was pressed on an LRU cache, including a hashmap with a doubly linked list and a clear explanation of eviction behavior. Because I had practiced system-design-style examples, I felt more comf…

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