Vantaggi
I've been at Fannie Mae for 5 years, and the company has undergone a lot of changes since then. In the last year and a half, the company has grown tremendously in size. For established employees, this has created room for leadership and growth as you are now one of the more senior people in your group even with just 5 years of experience. However, for the new hires, the low people on the totem pole, I don't know how much job security and certainty there is what with the long-term future of Fannie Mae completely uncertain and subject to the winds of politics.
Svantaggi
As I mentioned above, the future of Fannie Mae is very uncertain, but especially for new people - I feel a lot of the new hires are just interchangeable like commodities.