Hm... I have had a couple female ESTJ bosses, actually, so I may know! First, and foremost, from the ones I know, they seem to have everything in their job locked down, taken care of to the very last detail, and they know it. As they seem to see it, they have their job down to a science, and it is quite perfected.
Another big sign is a kind of hostile/suspicious politeness... A politeness that seems very loaded with expectations. They seem to be looking for an exact kind of interaction, and they look for it very critically.
Like I said, I know 2 ESTJ females. The first, I student taught under. I could tell who passed her 'hostile politeness' tests and who didn't, because she became very free and easy with people who could pass. Those who couldn't, like me, always got the hostile politeness.
The second is an assistant principal, who I don't see nearly as much, but as far as I can tell, I usually pass her tests. I have changed since my student teaching days, though. My Fe is more developed, and I can actually put some expression into it now instead of just going through the motions. I get a nasty feeling after I talk to this woman, though. It always seems like I have narrowly avoided failure...
Overall I think ESTJs are very critical about the people they work with, and they have high expectations not only of performance but of interaction and expression of beliefs as well. What drives them is efficiency. They may have their job down to a science, but this could mean terrorizing their coworkers or underlings with the wielding of power and punishment. If it isn't efficient, then they see it as not worthy of their time.