The original post was over a year ago but since 89 asks.....
Whilst I do not know what the T's n C's are for an engineer, I can be sure that you will not be able to 'bargain' for better. It'll be a case of if you want this position you can have it, if not then you're welcome to go elsewhere. Can you imagine if we could all barter for better conditions and how it would lead to relations with your fellow workers if some got better than was standard?
Emirates help start up flydubai in the very early days using their HR and engineering staff amongst others but now we are a stand alone airline.
You will be entitled to discount travel with EK although I am not sure if that is in J or not. We have our own perks but they will not be in line with EK.
Sure someone else will be able to give more info from the engineering department.