And there's no easy objective way to screen for this in a job interview. So they pretend it doesn't exist and never ask questions like: "Suppose you're designing a green-field app that you think will grow over time like X, Y, and Z. How would you design and organize your code so that the app stays maintainable and flexible over time?"

I could talk for hours on this subject with concrete examples if anyone ever asked.

I think another problem is that there are so few engineers/architects who really "get it" on this subject. I can only think of a few ex-coworkers with whom I could have the kind of in-depth conversation about app design and organization that I'm picturing.

I've never worked in big tech, always for startups or non-tech corps with a few rock star devs and a lot of decent devs. So maybe it's different at a FAANG. But in my head I'm picturing a bunch of algo-geniuses whose code turns into a big mess over time when requirements take a right-turn and break all their beautiful abstractions. I've worked on a few apps like that and it's not fun.