Phone interview with code pad and on-site interview. Phone interview involved some standard behavioral questions, such as what if you overhear some sensitive information in an elevator. I guess those are just a formality, no one in the right mind may give a wrong answer. There were two coding questions in the phone interview. The onsite interview were a series of 2 on 1 interviews. There were routine questions on low-latency techniques in trading systems, and some more challenging questions on programming. There were more behavioral questions, such as what do you think are the successful players in their market, why are they doing well. My answers probably offended the ego of the interviewer, as I knew the answers well and didn't think too deep about the implications in an interview.