I have always found it interesting that JavaScript is one of the most consumed programming languages in the world and nobody can write in it, especially in the browser. When I say write in it I mean without abstraction libraries (React, Angular, jQuery, and so on) and doing something other than CRUD apps. Until last year I was writing JS full time and met only 3 or 4 other people who do this and of them had security clearances.
There is a huge opportunity there that nobody is filling. While the talent for it is completely absent the surprising thing is that it’s ridiculously easy to train for provided the candidates are smart enough to follow simple instructions and write original code.