There Is Some Cash Up For Grabs
Last night, I went shopping for a service to monitor servers and API performance. So I looked at New Relic, AppDynamics, and a few others. From what I saw, none of them supported Perl.
That seems like a golden opportunity to me. Those companies are making some serious money (New Relic is likely to do an IPO this year). I think an enterprising Perl developer could get a piece of that pie.
If you put together the right hooks to support one of their monitoring agents from Perl, I am certain those companies would be happy to license you work from you. Or at least offer you a good job.
Individually, those companies may not feel the Perl market is worth the effort, or perhaps they just can't find the expertise to support Perl (good Perl devs are not easy to find). But if you find a way to leverage code across all those companies, then I think you would be sitting pretty.