They exist. They're exceedingly rare, though. I know only a handful and they tend to stick to one framework or way of doing things at a time to keep their learn

They exist. They're exceedingly rare, though. I know only a handful and they tend to stick to one framework or way of doing things at a time to keep their learning burden to the absolute minimum. They're also pretty picky about who they work with. (One of my friends that meets this description is looking for a new remote Ember gig. If one of you out there at a cool company looking for a new dev+designer send me an email and I'll intro you.)