One thing that could potentially help I can think of is encouraging hiring of women in more junior roles (and I mean hiring junior level candidates, not trying to shove a more senior female developer into a lower level position). If we're not seeing qualified female senior level candidates it could be because they're not getting opportunities to learn those skills in lower level positions. I know from experience it can be hard to make room in a team for a junior employee, but it's something that the industry needs to get better at doing if we want people to eventually have the skills to fill those senior levels roles.