Two face-to-face interview. ask about some experiences of my internship, and also few classic braineasier. Then four phone interview with Portofolio Manager, all are technical questions like the face-to-face interview. Then the last round is to meet the HR.
I applied through a recruiter. The process took 1 week. I interviewed at WorldQuant
Interview
After a recruiter put me on this offer, one of the guys at the company did a phone interview with me for about 45 minutes where he asked lots of questions about C, Linux, Perl and DB