After the good things I'd heard I was surprised at the turn the interview took. I found the interview process to be progressively more detailed, starting with two hour long phone interviews, followed by a full morning of interviews ranging from project managers, statisticians, and directors. Everyone was articulate and positive about the company. Many of the sessions were redundant with people asking variations of the same question. The interviews were conducted in pairs, with a few minutes break in between. Many questions asked 'how did you deal with xxx', specific issues, or asked you to highlight how you'd solved problems or contributed in a creative way. I unfortunately ran into one person who was biased and behaved inappropriately during two parts of the process.