I applied online. The process took 4 days. I interviewed at Volant Trading (New York, NY) in Mar 2018
Interview
Math brainteasers, they asked me about how to calculate the EV of various coin tosses and coin flips Also gave me a python programming assignment that I did online, on some site like coderpad Also did a behavioral interview
I applied through university. The process took 2 weeks. I interviewed at Volant Trading (New York, NY) in Oct 2015
Interview
Applied via school system. Cursory 30-minute interview (behavioral and a couple probability questions) followed up with a comprehensive on-site interview a couple weeks later.
Had a chance to meet and converse with many senior employees during the process. Everyone was cordial; HR was responsive. Wasn't there during market hours, but I didn't get any sense of edginess or high-stress in the company culture. Got the impression that most employees were either seasoned financiers or highly quantitatively educated.
Interview questions [1]
Question 1
Virtually every question was standard, but it was comprehensive. Brain teaser questions are always going to be a little unique, but the emphasis seemed to be on behavioral (Why X, resume walk-through) and, in terms of quantitative questions, mental math in particular.
I applied through a recruiter. I interviewed at Volant Trading in Oct 2013
Interview
Interview with one of the senior traders. Asked about my resume mostly and talked about possible strategies and where I saw growth and potential. We talked about latency and execution of platforms, rates with different brokers I was getting.
