How do developers manage this type of stuff?
Simple: we don't learn the languages.
I focus on learning concepts that can be applied, at various degrees, across the languages.
Joe's article hits the nail on the head. And yet, many would-be employers of incredible programmers miss the boat because some specific acronym is not present on their résumés.
Tragic? No - let's not be melodramatic. But unfortunate? I think so.