> Maybe the women just hustled harder.

Doubt that explains it.

I went through a large software development course, about 70 people. 60-40 male-female. Was a positive experience. The women all landed jobs instantly. As in, the day the camp ended, they all had jobs. The men, mostly, did not. It took months and multiple interviews for the men to get hired.

The demand for female developers is higher than the demand for male developers. (not that the demand for male developers is low). This doesn't particularly bother me, but it does appear to be a thing.

The way I look at it, most of the personal attributes that get you an entry-level job will end up having nothing to do with how well you will perform in that job. Gender is just another one of those.