Any insight on the job market for medical researchers?

I am interested in becoming a medical researcher and I’m curious about what the job market is like in the field. Any comments are appreciated.

Medical researcher is a very broad term.

A medical researcher with a B.S.? M.S.? Ph.D? M.D.?
A medical researcher in academia? Or industry? Or government? etc
A medical researcher in engineering? Or biochemistry? Or genetics? Or medical physics? Or clinical research? etc

Can you be a little bit more specific about what you’d like to do?