Can you explain how Wise helps here? At a glance it looks like it only handles the trivial part (money transfer) and not the tricky parts like employment contracts, regulations, taxes, mandatory insurances (health, unemployment, retirement, etc.)

+1

I'd add it's easier to do B2B than regular employment, that will make your life easier as you will not carry the burden of figuring out taxes- your contractor will know better their circumstances like tax residence.