It's a little odd if you know OO Perl but don't use Moose, but not a deal-killer. Honestly, I've found that there is a large faction of Perl programmers that refuse to leave the 1990s behind, and those are the people I don't want to hire. If you just don't know something but are willing to learn, then that's perfect. It's the "I will absolutely not use Moose" that == unemployment :)
Half the jobs I've taken give deadlines for projects that make it impossible for me to learn more than I know to complete them and the list of things I have to learn in my time (that also competes with lists of projects, blog articles and other things) is growing constantly. I miss having free time.