J'ai postulé en ligne. J'ai passé un entretien chez Jane Street (New York, NY)
Entretien
Applied online. There are 5 rounds of interviews, and I am currently in the 3rd round. They ask a lot of mental maths problems, mostly coin flipping games. The interviewers were very friendly and I learned a lot during these interviews.
They tend to examine the logical thinkers that can communicate clearly and concisely, and some problem-solving exercises intended to explore how you gather and apply new information, very different from other tech companies' interviews.
Initial application and online assessment. Had a first round behavioral interview where they asked me about myself, my experiences, and a couple of brain teasers. The interviewer was very nice.
J'ai passé un entretien chez Jane Street (Londres, Angleterre)
Entretien
Phone interviews (at least 3) - questions were of mixed difficulty (some pretty hard) but the interviewers were friendly and they gave helpful hints. Kind of fun - review probability and game-type questions.