I haven't read the advert, but these sums of money are not unusuall in the Biz Jet world, if you work for somebodies private aircraft.
But before you say I want a job there, there is always a second side to the coin.
Imagine you are sat in some !!!!ty Hotel in the former Soviet Union for month on end without seeing your friends and family and your boss treats you
like a second class bus driver,is $11000 enough?
The question you have to ask yourself is , how much do they have to pay me, to do that job?
The money is great, but family life is difficult and to find a job like that and have a nice boss is even more difficult. I got lucky for the moment , but things can change quickly.
Just for info, the Co-pilots i'm working with earn Euro 7000 per/month which is not far off the $11000 with the current exchange rate and that's on a 2 weeks on 2 weeks off basis with flights home and training paid for.
But as they say , the grass is ........