I applied online. The process took 3 weeks. I interviewed at Bain & Company (Boston, MA) in Oct 2017
Interview
For reference I applied from a non OCR school. The first round consisted of two 30 minute Bain style case interviews (structuring the problem, going in to a shallow degree, then breaking into a market sizing.) These were with an SAC and a Consultant. There was a short 4-5 minutes at the end for some questions. The second round was two more cases; this time with a manager and a partner and were 45 minutes long. A bit more in depth as well. One Bain style one more traditional interviewee led case (felt very BCGy). More time at the end to ask questions. Everyone was extremely nice, from the recruiters to the interviewers.
2 cases for R1. Pretty straightforward cases about revenue optimization opportunities. There was a little bit of market sizing but all data needed was given. No behaviorals asked in round 1 for me.
Interview questions [1]
Question 1
What office did you choose and why? Do you have competing offers?
2 rounds, 1st round 2 small cases, not very difficult , market entry cases.
2nd long case with a deck to read and prepare answers..45 mins to read, 15 mins to answer
Three rounds of interviews, generally 2 rounds in person or remote with live consultants. Each round involves a 2-3 case interviews each, which generally also include a set of behavioural questions.