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Doubtful. The engine engineer doesn’t know the chemical engineering of modern fuels nor the code in the engine controller.

In my country in order to earn a true CS degree you need to learn both Chemistry and EE.

Also check the Homebrew CPU running a custom port of Minix 2 with in-place ported C compilers, linkers and assemblers.

I had to learn geology and engineering drawing, because the first two years syllabus overlapped with civil and electromechanical engineering.