I got a LinkedIn reference to the recruiter from a mutual friend for the initial contact. Two HR phone screens that were pretty easy, and two phone interviews with Mission Specialists that were the toughest I'd had. No technical questions, but project management and client relationship scenarios that I found difficult, not having a thorough PM background. That got me the onsite team interview - more project management questions, which I thought I did OK on, but apparently not good enough to get an offer. Cultural fit is key for them - I was pretty much told by earlier interviewers to ask company culture questions from the later ones.

It was clear from the beginning of my interview that the interviewer had already found someone else, and I quickly received an email after my interview informing me that the role had been filled internally.