The process took 2 months. I interviewed at Jane Street (New York, NY) in Mar 2012
Interview
Four rounds of phone screening and one final round of on-site interviews. All on-site interviews are two-to-one. All technical questions. The interviewers are very smart but it seems they do not care that much about what they are doing at work. The overall process was pleasant though not as perfect as I expected.
I applied online. The process took 4 weeks. I interviewed at Jane Street (Berkeley, CA) in Sep 2022
Interview
Math Puzzles and brainteasers for the first interview. The second interview is about coding questions in any language you choose. It is over the phone and with a coderpad software.
I applied through college or university. I interviewed at Jane Street
Interview
Only made it to phone interview, interviewer is nice and professional. Should have been more prepared to not waste the opportunity. Got interview through campus recruitment. Never knew this firm existed until I applied.
30 min - 1 hour phone interview. The interviewer asked 2 brainteaser/ probability questions that were reasonable in difficulty (not crazy). Interviewer was kind and helps if you make a silly mistake.