I applied through university. The process took 1 day. I interviewed at Jefferies (Philadelphia, PA) in Feb 2014
Interview
This was an on-campus interview. I had two interviewers, both from the same trading desk. Both interviewers were very personable, and I felt comfortable right away. I think the interview went pretty well, although I imagine that my casual attire was a turn off - the interview slot was a last minute opening and I was wearing the garb that one might wear to a prop shop interview.
Interview questions [1]
Question 1
1) Estimate the sum of all prime numbers between 1 and 1000. You have one minute. 2) Provide a 90% confidence interval around what you think the sum is. You have 30 seconds.
I applied online. The process took 2 months. I interviewed at Jefferies (New York, NY) in Aug 2020
Interview
Applied online and was invited for a phone interview. I was asked a behavioral questions and company specific questions.. I had to talk about the markets. Overall experience was good.