I applied online. The process took 3 months. I interviewed at IMC Trading (Amsterdam) in Apr 2014
Interview
Online application starts with resume screening followed by invitation to two online aptitude test. Upon successful completion there is a phone interview focussed on motivation, skills, etc. First round technical interview with doable tasks. Then, online personality assessment and second round interview with traders, quants, HR. Tricky questions, but doable with preparation.
It was a tough market making game and a pretty easy brain teaser. The process took a while as well. I think I got nervous since it was my first interview as the difficulty was not too bad.
Have to play some reaction games, I tried for a business course, failed and then also got insta reject on actual application. Reject came in within a day. Was a bit disappointing
Assesments first, than HR/Technical after that a superday. Assesments are a video interview, where you record a video and get to questions to answer. HR interview partially checks whether you would be a personality fit to the company but also assesses some more technical skills. Superday has a quant round, a trader round which are more technical and another HR round.
Interview questions [1]
Question 1
HR round is partially personal, partially brain teaser. Superday is problem solving and probability heavy.