I worked at Jane Street full-time
Best company that I've ever worked at. They appreciate their employees and treat them well. Great corporate culture. Enjoyable work environment where people are challenged to do their best.
New employees can easily put on the 'freshman fifteen' from all the available food.
Took about 30 minutes, the interviewer was very friendly, but the interview is kind of difficult, like others said, you gotta be really good at maths and statistics to pass the first round.
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