Really unprofessional and ignorant administration. I was contacted for an interview, and we scheduled. The interview was with a ex-Citadel guy, and I did well hence got a second round. I did fairly good in that, but not my best, given the time constraint. After that, they didn't even reply to the emails or sent any feedback. While they project themselves as the next big thing, this is not the way to treat the new talent and this is when they haven't even started trading. I've interviewed all the big names like Jane Street, Tower Research, DE Shaw etc, and they all treat the candidates in a professional manner.