Hurdle 1 (but not insurmountable) - you'll need to obtain/convert your license to a JAA/JAR/whatever-they-are-calling-it-these-days version.
Hurdle 2 - Right now there are precious few professional pilot jobs available in Europe, and of those that are available, the Ts & Cs will need very careful examination if you don't want to get suckered in to something awful. Don't assume, ever, and ask deep and searching questions about everything.
Good luck.