Jane Street Software Engineer interview experience

The first contact was a 45-minute virtual phone round, and then I moved into a super-day with multiple onsite sessions, all centered on coding in Coderpad. Everything was very coding-heavy, with no drifting into casual conversation.

The onsite format had multiple rounds with back-to-back coding problems. In one of the hardest interviews, I was hit with two questions that both had strict time and memory constraints. I managed to make progress on one—only around the neighborhood of partial correctness—but the timing on the second one left me with no real opportunity to finish, and that quickly