Yes, but at least some people will have to juggle hats a lot. And at a certain scale they'll probably spend more time not being a software engineer than being o

Yes, but at least some people will have to juggle hats a lot. And at a certain scale they'll probably spend more time not being a software engineer than being one, up to the point where it doesn't really make sense to call them software engineers at all. The reason most companies have dedicated employees is that it's very hard to be a generalist and stay on top of everything you do. It's more efficient to specialise and become much better at a handful of things instead of being barely competent at everything.