There were two rounds for me, I applied through my school's career center website and was selected for a first round interview. Although I interviewed for the AT program, I sent in an application for an HR role. I interviewed with someone from the New York office, he was cold and needlessly antagonistic. After realizing that I didn't think I would go farther with the interviewing process, I began to ask questions that I knew the interviewer could not answer (think: what am I going to eat for lunch?). The interviewer asked me antagonistic questions like: "how would justify your major because I don't see how it would fit at Capco or for this position?" and he ultimately cast the negative light I would see Capco in.
A few days later (and much to my surprise) I was contacted for a final round interview. I flew out to New York a few weeks later. They put you up in a hotel and fly you over, so the few days out of school was nice. The second round interview is what they call an "evaluation" which is a way for them to interview 4 times as many people than a traditional one on one setting. There are three rounds to this evaluation, the first is a summarization of four emails, where you are asked to provide 4 issues, 4 actionable items, and 4 problems that the emails suggest. You are given 20 minutes to write this email and then paste it into their Google form. The second round is a "speed dating" type activity, where you talk to 6 people who ask you the standard "thinking" questions, I found the interviewers cold and needlessly antagonistic. Finally, there was a group case interview, where there is a bank which is coming to Capco for an idea about how to grow their business into the mid-Atlantic. Finally, there is a lunch.
Overall, I was not very impressed with the way that the interview was conducted nor with the quality of the people I interviewed with. Capco employees onsite were very stuck up and not people I would come to discuss advancing the state of the art in finance. I heard that their worst performing employees who are benched are selected for the interview, so that could be a saving grace. The final round is very much dictated by the quality of your group members, who I found to be fixated on a single thing and unable to see an issue or problem from a high level. Capco employees write off their dismissive behavior as being "real" or "trying to put you out of your comfort zone" but I have interviewed at more prestigious and smarter places where they can do it without coming off as so conceited.
Most importantly, I did not accept my offer because I found out that Capco is more of an elaborate financial industry staffing agency. They do not really innovate and more so provide warm bodies to do the contracted work of big banks.