I've looked at the "Backend Developer" guide, I'm surprised that it doesn't mention git or any other version control tools.

I think it could be a useful addition; nowadays version control is part of almost all backend projects.

Thank you for pointing it out. It is still being modified and will hopefully be fixed this week along with the other changes. It was there in the "common" section in the repository https://github.com/kamranahmedse/developer-roadmap but was missed when moving the roadmap to the website.