Aircalin pilots are all french. You require a french(JAA) licence, the right to permantely live and work in europe. Most guys either are low hour cadets getting experience before heading back to Air France or are old school looking for a cushy job to retire.
I believe that you either fly the fag jet or you fly the ATR, but not both. Good pay as well. As a start up F/O on the ATR i you would get about $4000 US a month.