I’ve worked at half of these places and they’re all doing yaml massaging and grpc sculpting. Not much more than basic KTLO with some regularly scheduled feature work and reliability heroics.
Well that is not what that tier job description is describing today at least. Maybe in the past or even still today if you got in early. Hard to imagine so much weight being put on ML knowledge and skills in the job app if it isn’t getting used in the role at all.