Google Site Reliability Engineer interview experience

I was asked about GetDirectoryChildren for a path, then about deleting something given a path, then whether a path points to a directory. After that, the follow-up pushed me toward deleteDirectoryTree, where the key was handling recursive deletion correctly.

What stood out was how much the interviewer zoomed in on the assumptions. I had to explain what the path format looked like, what the input would resemble, and whether I could assume the directory structure was already represented as a tree that I’d receive. I also got challenged on approach choice—whether a DFS approach made sense, and