"Prompt engineering" is not a transferable skill. Someone who knows what to ask to, say, get a decent tenancy agreement out of an LLM would have no idea what to ask to get a shell script out of it. As always, domain expertise plus good communication skills rule.
@jasongorman I guess it depends how broad your definition is . Many of the patterns I build are generalisable to multiple domains and often co developed with smes in those domains