As a non Perl (?programmer?), I have to say, that is probably the most legible Perl I have ever read! :)
Hiring someone over something like a scripting language that can be learned in days to weeks (if it's a worthwhile scripting language!) seems highly flawed in the first place.
Personally I would probably hire this person for different reasons. The code is well structured and reasonably well commented. Language specifics can easily be taught later.
