J'ai postulé en ligne. Le processus a pris plus d'une semaine. J'ai passé un entretien chez Jane Street en déc. 2015
Entretien
Applied online. They emailed me soon afterwards and I did a phone interview for a Research position four days later. There were two questions about combinatorics and probability; they were quite interesting, but I didn't give great answers. I got rejected three days later. Good overall experience, everything went smoothly and quickly.
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.