Any time I try to tell people that I kick ass at anything at all, even just as an excellent mom, it is a total fucking beat down. It simply isn't okay for a woman to admit she is that good at anything at all. Ever. For any damn reason.
This means if you are a highly competent woman and you want to survive in this world, you learn to shut the fuck up about it. It also means that you are routinely denied the same opportunities as the men who are, in fact, allowed to say "Yup, I am that damn good" without it being a total fucking beat down.
Furthermore, breaking into a male dominated field tends to be a shit show where a woman has to put up with endless harassment by men who would hit that because Oh My God, It's a Girl! And she is interested in the same thing I am!!! The price of admission is just vastly higher than for men. You need far more than to just be as technically competent as the guys. You also need to be incredibly savvy about handling the endless social BS, incredibly thick skinned and so on. And then you still need to not brag lest it turn into a shit show and beat down for that reason.