Is there demand for english speakers in Poland?

You seem to be asking about positions for translators... Honestly, I don't think so... So many people speak English now and the fact that your Polish isn't even perfect may impede you... Your girlfriend might be more useful with her Spanish but she doesn't speak Polish so it doesn't do any good.... You can try to look, but the fact that your Polish is limited to begin with and that your girlfriend doesn't speak any doesn't do you any good....and English is so common, I mean maybe you can find something, but I don't know if either of you are qualified enough... try to improve your Polish first, then maybe some doors will open....Powodzenia!!!