Early 30s was around the age I started self-teaching compilers. Great time to learn, and the urge to improve one's lot is one of the best fires in the belly you can have.

> Maybe what I am looking for is purely fantasy and does not exist in a truly feasible manner?

I felt those same things. Places where quality work is respected do exist, but they may not be in FAANG. You may need to choose between interesting work and money eventually.

Happy to chat more over email if it is helpful.