Theoretically it shouldn't vary much by either industry or technical role, since qualified tech people are basically fungible in the sense that they can train themselves to basic competence in any area, so the fast hiring side should be seeking out workers from the slow hiring pools to where it all evens out.
I would definitely agree if we’re talking leaves on the org tree. Once you start building new layers you really need people that have been there and done that (more aligned to use case/industry than specific tech) or you end up with thee we blind leading the blind.
Enterprise hiring is a mystery to me. Big companies, especially banks are so flush with money that they should be able to hire any number of decent developers in any general area just like turning on a faucet: allow remote work and offer too much money to refuse. I agree you want relevant experts to get things started, but for that you just hire a few the same way and use them to train other leaders.
If what you really mean is that banks are trying to poach the same handful of employees from each other, then I can see why that would be a challenge.
From a big company's careers page, enterprise hiring starts with application systems requiring accounts and asking questions like they're running a federal background check. It's a big signal of disinterest. When you say banks are hiring like mad I trust you don't mean they're relying on experts going through the front door.
