The following is all of the new hire posts from github processed where certain words are tagged. I have selected a subset of those terms that loosely indicate that one has a developer skillset and marked those by putting 'developer?' in bold next to their name. Looking at pronoun usage that github is using, the genders are also tagged. More recent hires are higher on the list.
Make a note at the terminology github uses in the case of women versus men. Look at the ratio. Come to a conclusion on your own.
Source code (it is part of the fun to put this on github): https://github.com/wilkie/githubber-announce-scraper