Bomb tech

Girls can't be infantry and you do have a talent for technology so you sign up for a technical MoS, when the army hears you are all but indestructible they know just where to put you.

The weird part is that in all of your nano invincibility you almost never get hurt, you always drive lead and yea every week or so you suffer a blast that would kill anyone else but during actual bomb defusal you never make a mistake. 6 months in and you are a company hero, the phrase "super soldier" gets tossed around and you are so used to being a girl that all the hot guys around you starts to be very interesting.