Hi,
I am a full-time developer of Perl and CGI, and I work with most platforms (Linux, Solaris and Windows) and would like to help with your task.
You can check my existing ratings on Freelancer and also see that I have cleared Freelancer's Perl Certification, and thus be ascertained of high quality results in expected time.
I will also use proper Perl packages to ensure there is OS-independent code and ensure that the code meets your performance and functionality needs.
I am assuming that we will be able to install the required Perl modules and also get Analytics API access keys etc.
Thanks for reading my proposal, and do tell me in case you want to renegotiate pricing/timelines for the bid.
Regards,
Rushin