My job as a senior developer with a team of juniors is to figure out what to write, sketch a PoC as guidance, and then delegate the actual implementation to them. I'm going to look at that, explain misunderstandings or poor style choices, and guide them into implementing something that meets our standards.
I don't think LLMs can do my job yet. But I think we're getting shockingly close to them being able to do the other part. And I'm worried how we're going to get more senior developers.