Thorough phone interviews with thorough one on one interviews of folks from varying departments relevant to your position. It is a consensus based culture, so expect to meet lots of cross-functional groups if it is relevant to your position. Cultural fit is key. Communication and relationships are key to the business, so how you build social and professional relationships are key to your success. Understanding the people and getting to know the people are key to understanding the business. Skill fit is definitely important and the minimum threshold for consideration, but stellar skills and performance will be outweighed by integrity, ethics, and people-skills. If you are looking for a traditional banking culture that's highly competitive and cut-throat, BGI probably is not the best cultural fit for you.