Actually, I have been trying to find women for these challenges, but it's kind of frustrating. Granted, computer geekery has been largely dominated by guys, so it wasn't, perhaps, the best choice for a challenge. (But, being a geek, it was something I wanted to do.) Even those women who have had a major impact on the field are under-represented on Wikipedia (where I do my research for these challenges, not because I consider it unerringly accurate, but because it's quick). And then, not all the women who do have Wikipedia entries have WikiTree profiles, so there's layer upon layer of neglect here. Out of the 27 geeks I turned up*, only two were women: Ada Lovelace, and Grace Murray Hopper, and they're both already connected. (Actually, I didn't even need to look Hopper up. My brother is a big fan of hers.) But at least being connected puts them ahead of everybody in this challenge.
(I also try to spread these challenges around in terms of countries, to try to give a boost to countries that are under-represented on WikiTree. But the problem there is that most people don't even attempt to work on people from outside the US, Western Europe, Australia, or New Zealand, which is why there are so many incomplete challenges piled up.)
I should also say that I have (mostly) given up my former practice of adding profiles for people in order to make up a new challenge. That just leads to lots of unconnected notables in assorted fields, which annoys my fellow Connectors. So now I just look for people who already have profiles on WikiTree, but are unconnected. But when I was searching for unconnected science fiction writers, I was really frustrated. There are lots of women science fiction writers. Granted, most of them are still alive (and long may they stay that way), but even restricting myself to the dead ones, I was really disappointed at how few of them with Wikipedia entries have WikiTree profiles.