Originally entered the recruitment process through a friend's referral. Had a phone interviews/discussion with HR about my initial interest and a exercise (explain database on layman's terms). After some time I contacted the HR to ask how the process is going on. After this discussion HR booked a phone interview with a Deployment Strategist. The phone interview included some of the questions mentioned below. After this got a contact from HR to book next set of interviews in London office. In London went through three interviews (about 45 min each) with Deployment Strategist. Two out of three were 1-on-1, and on the last one there was an additional guy observing (didn't participate at the interview, some training). I was asked the questions below - some of them multiple times (also lot of whiteboard usage). After these spoke to HR about next possible steps. After two days got a call from HR in which I was informed that they wouldn't progress with me any further. The call was friendly and supportive, even though I didn't receive any tips on my short-comings in interviews (company policy, not to give anything out). The next steps would've been (or this is what I was told) interview with a manager-level person (in phone, London or New York). And then a meeting with founders. Even though I sadly missed my opportunity, the overall experience was great! HR took good care of me during the whole process and made me feel comfortable all the time. The interviewers were kind and open, and interviews felt kind of intensive but friendly conversations in fairly relaxed environment. I had good time to ask questions about the nature of the work: hours, projects and traveling. My tips: Do your homework on the firm (e.g look the 101-videos in YouTube, try analyzethe.us), gather up a bunch of questions (I had them as notes with me), think technological/technical examples in advance (for teaching) and maybe have few basic elevator pitches (pitch a product & yourself). Good luck!