Hey Gert,
My experience with incorporating in Romania has been summed up here.
For IT micro companies (limited to up to 3 employees), 3% corporate tax (1% if you have 1 person employed full-time, it can be you as well), 5% dividends.
Employment, even a part-time, entitles you to a health insurance (probably pension as well, but it would be negligible, so it doesn’t really matter), but if you don’t plan to live in Romania, you might skip this altogether.
Your IT background is relevant only if you’re employing yourself, otherwise I think it’s not.