Yes, but no. My company is working in a proprietary engine, so there is almost no one we can hire with that engine experience, but we still want people who became familiar and strong with other engines because they can do it again with ours.
Don't be too discouraged by this, but start learning your next engine.
That last bit is the important thing. If someone tells you pronouns, use them. If someone tells you they prefer "they/them" and you keep using he or she on purpose, you are disrespecting them.
We all make mistakes sometimes and most people I've met who use alternative pronouns that may conflict with their socially expected appearance don't mind correcting someone a few times or will brush it off a few times, but more than that, especially if you see and interact with this person regularly, you become an asshole.