Embedded is hot right now, so sign up for the Jack Ganssle's Embedded Muse Newsletter http://www.ganssle.com/tem-subunsub.html. The jobs are going to be mostly US based, but some place to start.
And look for companies that you know are going to be using C/CPP from their products. Even if they don't have jobs posted, find someone on the engineering team via GH, FB, LinkedIn, their blogs, guessing their email address, conferences, where ever and email them a nice note talking about their products and how you'd love to work with them if they have a position open.
If you can engineer a piece of code, I feel you can also socially engineer your way to a contact somewhere you want to work.
Else if you really want to be some "rockstar" web developer (and I only ever use that term as a pejorative), then start using a relevant language, and learn how to talk to employers about how your deep C/CPP experience is actually an advantage that no other diploma-mill code-school grad is going to have.
It's never more depressing then when you've hauled in a candidate for a review because they've got great past experience, but the candidate has zero ability to relate that experience to conversation at hand.
