Jane Street Software Engineer interview experience

There was a sense of ramping up: the first two rounds felt manageable and then the later round became more challenging. Across the coding interviews, the problems were more leetcodish than anything purely system-design flavored.

One early stage was a phone technical screen focused on a class-building style problem with clear, organized thinking. After that, I was invited to onsite technical interviews before lunch and then found out there were additional rounds afterward depending on how I did. The onsite felt like it was testing whether I could keep my reasoning clean under pressure rather