1 stripe is a cadet, 2 stripes is an FO with less than 3 years in the company even if he/she has more than 10 000 hours.
I'm an FO on the 777, although it's far from perfect , I'm quite happy with the job itself, Doha is not the most exciting place for a single lad, however it's a little bit of "what you make it". You have to come here with realistic expectations.
Money, roster, destinations, bidding system, staff travel, annual leave, route network and training is quite good. The job has improved significantly the last few years. I don't know about the Airbus fleet though.