Well if you really HAVE to have a Perl Certifcation that is from someone that an Employers HR Dept. MIGHT respect, you could try the one from CIW. It used to be just a test of Perl that was part of another Certification, but now it is a Certification on its own, CIW Perl Specialist.

http://www.ciwcertified.com/Certifications/Web_Development_Series/perl.php