> Is there enough demand for engineers that companies are willing to pay for one learning “it” on the go? If yes, what field is it? Trying to avoid cruft and mundane tasks:

I hope this doesn't sound overly harsh, but personally speaking, I'd say this might be a case of the proverbial "beggar wanting to be a chooser". Everybody wants to avoid dumb busywork that grinds you down, and you want to do so while being paid to learn it on the fly. Not saying it's impossible to get, but there's a lot more experienced engineers than you that are going after the fun/interesting jobs that don't have as much dumb work.