I applied through an employee referral. The process took 1 day. I interviewed at Fannie Mae (Washington, DC) in Jul 2015
Interview
Interview over the phone, with two managers. Pretty straight-forward, no difficult interview questions. In the end though, they went with someone with more experience. The whole process took only about 2 hours, but I don't think I would've gotten the interview if I hadn't been referred by an employee.