The process took 1 day. I interviewed at Jane Street in Nov 2011
Interview
applied through their webpage, got phone interview with software engineer,
and they asked to log in to webpage designed to share codes. The interviewer was very nice, question was easy, but I was not well prepared.
I applied through a recruiter. The process took 4 weeks. I interviewed at Jane Street in Jan 2026
Interview
Recruiter reached out to me. Have a phone call with recruiter, then scheduled an interview a couple weeks later. First round was about probability and expected value. Second round was coding
its hard to receive the online assessment, and if u r rejected, probably it's life-time long freeze - changing email address wouldn't work they have ur data. After the OA, couple rounds of virtual then onsite.
Interview questions [1]
Question 1
see the tradermath, get to know almost everything. Could be ramdonly asked.
3 rounds of technical interviews, the two first rounds being very similar with probability questions, the third one involves a trading game that tests your intuition (more difficult, and doesn't have a nice closed ended formula, but you'll have to develop some strategy and intuition about winning the game)
Interview questions [1]
Question 1
Some probability questions and games involving probability and expectations