If you’re an American developer looking to move abroad, a much better plan would be to first pick up a remote gig with an American company, and then move overseas. Your take home pay will be easily triple what you can negotiate from a European company. This site takes the opposite approach of finding positions at EU shops that will handle relocation and visas. That certainly helps get you situated, but they’ll likely…
The easiest way to relocate is usually to find a company that can sponsor your visa application, so that you're legally staying in the country, and can enjoy all the public services.