On the subject of how to get more women in tech and the assumption that sexism is the reason women aren't half of software engineers I found this article to be particularly illuminating:

https://medium.com/the-mission/im-an-ex-google-woman-tech-leader-and-i-m-sick-of-our-approach-to-diversity-17008c5fe999

Quick, somebody fire her! Oh wait, she's the boss. :-D