I applied to this position online and quickly recieved communication from HR in New York. HR asked me some general questions about my background, goals, career, etc. After about 45 min on the phone with HR she then informed me of a 2nd interview in person with representatives at the local office. That 2nd interview took place about a week later. I met with a couple representatives and had about an hour long interview. They asked me questions about my background and goals, shared more info about the company and position. They also asked me hypothetical problem solving questions, like estimate the number of X in City Y. HR then got back to me about a week later and informed me of a final interview round at HQ in Baltimore. That took some time to setup but it finally happened. The 3rd interview in Baltimore was an extensive meeting with about 4-5 different management staff. They asked some intense problem solving questions and detailed their business process. They paid for your flights to Baltimore from your home.