There is honestly nowhere one can escape sexism in tech. It is everywhere all the time. That was the lesson from that awful book "Lean In". It's a lesson I keep learning successfully leading teams.
Men will always favor other men. Over women. Every time. Right now, women are not truly included. Because we're not truly considered to be people.
If you can accept this, and if you can keep the focus on the work, and if you can absorb gut punches, and if you have enough margin, then you're good.