[johanneskanybal]

I learned the hard way about 10 years ago what happens when your current skill set becomes obsolete, since then I've become very focused (and lucky) and only take on really enjoyable and unique projects. That way it's easy to be exited and do a good job during a project, communicate your passion in future interviews and transfer that enthusiasm in your previous projects to potential future employers.

The exact tech choices doesn't matter that much it's more of the overall direction (in my case analytics, in a bunch of varied sub-fields).

Although the top comment has some merit I'd argue c/c++ is an outlier here rather than the norm.