I'm 4 weeks in to a new job where everything is written in Perl. They're very strict about following the in-house style guide, and all the code I've seen from others is easily readable, despite me not having a whole lot of Perl experience. It's also exclusively a Windows shop, and internal systems all seem to be .Net-ified. I'm still trying to figure out how everything fits together...

My division writes code for clients, and there's a huge emphasis on quality and maintainability. We have an over 99.9% error free rate, time estimates are rarely off by much, and developers can be expected to take a program they've never seen before, modify the business rules, and created a 'finished' product in sometimes as little as 2 hours. And all in Perl. It is maintainable, it is readable, and it's well designed enough to keep our clients happy.