I applied through a recruiter. The process took 4 weeks. I interviewed at IMC Trading (Chicago, IL) in Jun 2016
Interview
Applied through a recruiter, 45 minute phone screen with Head of Performance, then 2.5 hour online coding test at codility.com, then first on-site interview: 2 people at a time, 3 rounds of interviews, 30-45 minutes each. My experience was in C so then they asked me to come back for a Python on-site coding test. Then after that with 2 more interviews with another manager and HR, and lastly one with the CTO.
They did a fairly good job in the process. I'm just disappointed I didn't get an offer. :)
Interview questions [2]
Question 1
Standard software and networking questions. And also for second interview, on-site parse text data in Python to find average trading processing times.
Had 1.5 hours to do it, left in an office with an internet connection.
Give a 5 minute presentation on any topic to us pretending to be a 3rd grade audience. It is timed and then after will write down what was communicated and what was trying to be communicated and compare them.
I applied online. I interviewed at IMC Trading (Sydney) in May 2025
Interview
I was given a take home task with a 6-9 hour guide. It was a nice challenge, but I was ghosted after submitting which was disappointing due to the time I spent.
I applied through a recruiter. The process took 1+ week. I interviewed at IMC Trading in Mar 2019
Interview
There was an onsite interview that lasted an hour with the team manager and another engineer. The interview went well and I answered most Networking questions and I was honest about what I knew, but they expected a candidate with strong Python skills, which I didn't have (and which I was open about from the start - from the moment, the recruiter contacted me). They mentioned that as the only reason while rejecting. I felt that if they really didn't want a candidate without a Python knowledge (I had not even mentioned Python on my resume, so I was very clear from my end), they needn't have called to meet me in the first place.
I felt this was not such a good experience.