What are some great opportunities for Officers after the military?

CPT (Join to see) With your Signal background and MBA, take a look at Accenture or one of the other major consulting firms who have stepped up in the veterans hiring space. Good working environment, with plenty of professional challenges (full disclosure - I spent 10 years with Accenture and its its ancestor
Andersen Consulting) including lots of travel.

@cpt adam mann; that would depend on several factors.
1. Being that you're a signal officer, you should look into a career path that is closely related to your job in the Army.
2. What other interests do you have outside of Signal?
3. Are you looking to work strictly in the civilian market or a civilian contractor working for the government?
4. Check out USA Jobs

That’s really depending upon what you want to do. Have you considered any fellowships or possibly graduate education?