[throwaway92384]

High-pay or high-reputation jobs where the employer can be selective (FAANG, quant finance) seem to test for high IQ with interview "puzzles" (computer science puzzles of course).

Good employers, but who do not have more qualified candidates than they know what to do with, are already very happy with someone who simply has an interest in his job, as this is already rare enough. They pay attention to personal projects as signs that you actually belong in IT.

Government and, by extension, the consultancies that cater to them, pay attention to diplomas. Bureaucracies recognizing the stamp of approval of another bureaucracy, is one way of looking at it.