JJflyer,
I can't help you with employment information but, I can fill you in on operating out of Lokichokio into South Sudan.
It's a fantastic place if you want an African Aviation Adventure. The people based there are from many countries, and I am sure at the end of the tour you would be glad you did a tour there.
I think you have my email address, email for more info.
Rgds
ATR Driver