In Spain (where I live) there is specific contract model for hiring people working abroad in a permanent contract. However, this contract model does not provide any health insurance for the worker in the "destination" country. This contract model is only useful so that they don't have to pay taxes at Spain also. I guess that probably no country will have any contract model that provides people with health insurance or anything alike in a different country than where the company is located. I guess that working as an external contractor as suggested in the other answer is the way to go.

May I ask which source are you using to find those jobs?

cheers