Initial phone chat with a recruiting manager out of their Cambridge office. General explanation of firm culture was given. They had me briefly walk through my resume. On site interview was about 4 weeks later at their NY office. Lunch chat with two junior members of firm who were extremely sociable and relatively transparent about firm. That was followed by a 1hr 15 minute case analysis and presentation of calculations/conclusion. Final 45 minute traditional case with a Principal. Another managing director came in to interview me for about 10 minutes w "fit" questions. I walked out with mixed feelings, mostly to them having many non-scientist MBA's working on projects that are heavily grounded in science.