This feels like nonsense. Some C/C++ jobs I have seen people get in the last year. Notice that these require some low level internals knowledge and posix experience. nvidia google microsoft navtec/nokia cray

Maybe you have too much experience in the other roles, and your pay grade experience level corresponds to glorified web development?

You should apply to Goldman Sachs who are a Java shop. I think the Chicago CME group also does C++. An enumerable number of hedge funds do C++.