[virmundi]

This is not as terrifying as you might think. You can use this well for prototyping. You can make a simple endpoint fairly quickly in Go, Erlang, Clojure, Ruby. It could do some small task and pop out an answer. You can deploy this behind the wall of an named service.

If the service proves useful, you can migrate it to a more appropriate language. By appropriate, I mean a language that fits your companies culture. Java Shoppe? Java. C# Shoppe? F#.

You can also get a better match for the domain. For example Python has some great math libraries. They are easy to pickup, pleasant to use and reasonably performant. Say you need such features. Boom! Python service doing what it does best while the rest of your shop can use the tools that work well for the domain.