For me, being a polyglot programmer is about being able to sit down and get comfortable usage from any language or framework.
I started out with VB.Net in University, during my second year started using C# on my own. Next came Ruby with it's elegance. Followed by PHP for it's commercial potential (lots of people pay for this), followed by Ruby on Rails, followed by CakePHP, followed by ASP.Net, followed by ASP.Net MVC.
I have about 2 months of CakePHP experience - and I have a full time job using it at a Senior Position. It's about being able to somewhat "bs" your way into a job but NOT suck at it, because you are used to change. You can adapt and roll with the punches. Paradigms, toolchains, dev ops, are secondary - your real concern should be:
CAN I ADAPT EASILY TO ANY ENVIRONMENT?