I applied through college or university. The process took 4 months. I interviewed at RTX (Arlington, VA) in Aug 2016
Interview
On-campus interview was fairly standard, based on that I was invited to the HQ for additional interviews. The first afternoon was a formal meet and great with current BD people and meeting the other application finalists. Later that evening we had a casual happy hour to talk to more people about the company and role. The next morning we went through 4 individual interview then a group case analysis. It was a fairly intense process and they pay attention to everything you do.