I'd have to venture that 270 total time with a bit of multi, basically a bare commercial, will not get you anywhere with a regional operator overseas. The companies are mostly lookig for contract captains, current and endorsed with a minimum of time on type, as they have their own cadets for the right seat.
Seriously, I'm normally pretty positive when it comes to people giving it a go, but it has to be realistic, and your time is light by a couple thousand hours of turbine.
If you really want an offshore job with your time then your best bets are Papau New Guinee or Maun, Botswana. Or you could buy a type rating, go to Indonesia and hope you don't get killed.