First round, taking online IQ test. Mathematic problems as well as abstract reasoning problems. Second round, phone interview with a current financial application engineer. Asked about probability, brain teaser, and simple algorithm problems. Was asked to attend an in-house interview the next day. Third round, in-house interview with two R&D specialists. Asked why the role and what I would like to do. Then several C++ and algorithm questions. I did poorly on one of these questions.. Later they also asked things relevant to my major(not a CS major) which I answered pretty well. At the end of the interview, I was asked to stay in the room. Thought the I passed and was expecting for the next rounds. Yet the recruiting contact person showed up and lead me out of the building.... Thought I did well on most of the questions though.