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Jane Street

Software Engineer Interview Experience

Jane Street·Senior / L5
Result
Waiting
Timespan
1 week
Difficulty
Difficult

I ended up on the senior-and-up version of the loop because I had a project deep dive in addition to the coding rounds. The big surprise was that the SWE process was not mathy or brainteaser-heavy at all. It was mostly long, collaborative coding interviews where they start with one implementation problem and keep building on it, plus a pretty probing project discussion full of why questions. Almost every onsite round had two interviewers, but it felt more like a carefully run collaborative session than a pile-on. My overall impression was that the bar was high and the interview design was very intentional.

I ended up on the senior-and-up version of the loop because I had a project deep dive in addition to the coding rounds. The big surprise was that the SWE process was not mathy or brainteaser-heavy at all. It was mostly long, collaborative coding interviews where they start with one implementation problem and keep building on it, plus a pretty probing project discussion full of why questions. Almost every onsite round had two interviewers, but it felt more like a carefully run collaborative session than a pile-on. My overall impression was that the bar was high and the interview design was very intentional.

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