I agree, Administrative Assistant will not serve you well for future positions, plus it sounds like you are way past that.

Strategist or Analyst come to mind, knowing the very tiny bit I do about the position.

When I lived in France (different work culture), I could have gotten an admin asst or secretarial position easily, but I was way overqualified (several graduate degrees, but none from a French university). It would have been a good start in the US, to get a foothold in a new country and learn alot and work my way into a position that I was qualified for. But in France, once you have that title, that's what you'll be tagged with. It's a different work culture there, of course, which is one reason I came back to North America.