RDP applicants have rated the interview process at Jane Street with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 64.8% positive. This is according to Glassdoor user ratings.
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Phone Interview was the second part and was technical-based after a take-home exercise. After that, there is another technical, and then an in-person interview which are all pretty tough. Make sure you practice a lot
3 rounds, 1st round market sizing similar to consulting cases. 2nd round take home paper to prepare 3rd round in office interviews with multiple people about data manipulation and basic finance
3 rounds; first part is a take-home exercise. The second part is a phone interview that is mainly just market sizing questions. The interviewer was very direct, and got into the questioning right away