You will be welcome to work in Romania! They need pilots as much as anywhere else in the EU.
However, just like anybody who wants to fly in the US needs first to have a FAA licence, anybody who wants to fly in the EU needs a JAA licence.
No big deal really. Just a few exams, a few checks, just like in the States.
Also, to work in the US one needs, if one is not a citizen, to hold a green card, i.e. the right to work there. Same in EU. Well, it is not called "green card" but "work permit", and it is obtained the same way. A bit costly but quite feasible. Romania will, I think, be easier to get in since it has joined the EU and Romanian pilots now have the right to work elsewhere in the EU, and anywhere in the EU are they going to make more money than in Romania.
Down to you and good luck.
L