'Internships' do not exist in Europe, at least not in any way that you would understand them in the USA. You are either employed or you are not. If you wish to work within a European airline, in whatever capacity, you will need to be fully qualified for the job you aspire to. That will include (for a pilot) having the right to live and work within the EU, having a JAA Class 1 medical, and having the correct JAA licences.
You will have to explain further your qualifications before you can get any useful advice.
Scroggs
PS And don't multiple post on this forum. Your post on Operations has been edited.