[notfaang]

Yes. I always bring it up with my boss if that becomes an issue. Sometimes just taking vacation helps. Good bosses will make sure I'm not bored when I bring it up (eg find a project I'd be interested in, or not have to work with certain teams / people I do not enjoy working with), or will fight for comp increases if that is an issue.

Other times, it's simply no longer fun / I don't feel I'm learning anymore / the level of competition is too strong to advance to another tier, and that's when I leave.

I'm at a point in my life where I have nothing to fear by leaving, so that also gives me a lot of sway as experienced engineers are hard to come by right now.