My interview was three weeks long at the Fort Myers office. I had 3 rounds of interviews and it certainly was challenging. First talk was basic five minute talk with recruiter about the role and briefly touched on my experience mostly why Gartner why now. Second was a phone interview with two managers and recruiter and mostly behavioral questions and more on my back ground. Last round was two-3 hours approximately and was in person where we did a white boarding session on how events plays a role in Gartner, a role play on the phone, and general questions. Last round was with the VP a manager and recruiter...it can be intimidating but if you’re confident in your ability and knowledge you’ll do fine