NO Expat pilots in USA
Sorry, there are NO expat pilot jobs in the US at present.
You can work as a CFI with a J1 Visa.
Pt 121 carriers require TSA and FBI clearance for pilots so you will need to have at least a Green Card to work for a Pt 121 carrier.
You may try individual pt 135 companies to see if they will hire you, since there is a shortage of pt 135 pilots at the present time and there is a possibilty of obtaining a H1 Visa for a pt 135 operation.
I understand that WE are allowed to fly as expat pilots, but its not the other way around.
All the best...fly safe.....