What should a Core/Systems Game Engine Programmer know?

Question

Game development

What should a specialist in this field of gamedev know (except, of course, programming)? In what direction should a newbie move? And in general, what systems in the engine does he develop, and how far can he deviate from core development, for example, to physics? In my view, he must have knowledge of the operating systems for which the engine is being developed, the computer's memory device, and possibly mathematics.

Answer 1

and possibly mathematics.

Just the matan multiplied by 4 should be in the first place for you) if you make the engine from scratch, then it takes care of most of the calculations that take place behind the scenes, so without deep knowledge of the matan there is nothing to do there.
And after the matan - a deep study of C ++, architecture, optimization for hardware.
https://preshing.com/20171218/how-to-write-your-ow...