Backend Software Engineer Interview Questions

2,349 backend software engineer interview questions shared by candidates

Technical screen + algorithms round of onsite were reasonably traditional. Without giving any specifics (signed NDA), expect questions to be more "applied" than traditional LeetCode, i.e. "we're trying to solve this concrete problem under the following constraints, how would you go about that?" In my case, these questions involved a lot of follow-ups, to the point where I don't think you can "finish" the question in the allotted time; they just keep making things more complicated until you get stuck or time runs out. In many cases, interviewers expect you to go beyond the best purely algorithmic solution and instead discuss tradeoffs like in my case, giving up resolution/granularity for improved speed. The question during the onsite was significantly more involved than the one during the technical screen.
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Software Engineer (Backend)

Interviewed at Databricks

4
Aug 5, 2025

Technical screen + algorithms round of onsite were reasonably traditional. Without giving any specifics (signed NDA), expect questions to be more "applied" than traditional LeetCode, i.e. "we're trying to solve this concrete problem under the following constraints, how would you go about that?" In my case, these questions involved a lot of follow-ups, to the point where I don't think you can "finish" the question in the allotted time; they just keep making things more complicated until you get stuck or time runs out. In many cases, interviewers expect you to go beyond the best purely algorithmic solution and instead discuss tradeoffs like in my case, giving up resolution/granularity for improved speed. The question during the onsite was significantly more involved than the one during the technical screen.

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