Had OA but messed up something on the first question, however should be doable if you know your data structures and algorithms. Two questions for the OA, easy to mid tier.
I applied through college or university. I interviewed at IMC Trading (Chicago, IL)
Interview
for online assessment, there was a question about calculating info from an order book. helps if you know how one works beforehand. only one question and coding preferred in C++ or java.
one technical round and one hr round. technical round was moderately hard. hr round was about your personality, asking about general questions to check if you fit in their workspace.
Coding Challenge, Recruiter Phone Screen, Project Interview, Onsite. Coding Challenge was definitely on the challenging side of those I've taken. They dive deep into your past & current experiences for project interview. Onsite was challenging -- a long problem statement.
Interview questions [1]
Question 1
Why IMC? Challenging Project? Favorite language feature?