Everyone in the interview process was very nice and helpful. The recruiters are exceptional.

Jane Street clearly tries to make the interview process a positive experience for candidates, regardless of whether they pass or fail.

The onsite consists of 4 interviews:

• Two before lunch
• Two after lunch

During the lunch break, the candidate is left alone to eat and recharge.

I won't break confidentiality here.

One tip, though: I think practicing HackerRank is a better way to prepare for Jane Street interviews than practicing LeetCode.