Jane Street·Software Engineer

Jane Street Software Engineer interview experience

No offer

Hard

Positive

United StatesPosted Sep 2025 · Candidate report, summarized by Dataford

I got invited to a full-day on-site that lasted the entire day, and they handled travel logistics like flying me out.

The schedule felt packed, and it was clear the interviewers were looking for consistent performance over long stretches rather than a single big win.

The day had multiple technical conversations, all anchored around practical coding. Each time I started a problem, it began with a clear prompt and then grew by adding layers, so the “first part” didn’t feel like the finish line. They were friendly and generally helpful, but there wasn’t much slack—once the problem expanded, I had to keep the solution clean and moving.

I didn’t receive an offer. Still, the overall experience felt well-run and

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