If your concern is the ability to get jobs, I can see the point of that question. Keep in mind (I think) that it's increasingly difficult to pull off a full career of any kind of programming.

One thing that happened in embedded, and bear in mind that it ain't just low-end microcontroller stuff, is that it tends to be tightly bound to hardware. Hardware tends to be built in Asia (which I remember ramping up in the mid 1980's). Successful/higher volume products tend to be built in Asia. Engineering tends to follow manufacturing over time.

For fun, it's hard to beat specialty companies that build complicated gizmos with software in some sort of sexy business, but they are hard gigs to track down.