Well I guess they don't have enough "suitable FOs" since they are advertising for DEC
Fair enough then but worth considering:
1. Pay for your own rating. Easier for a DEC with previous Airbus experience to go straight in to the left seat, your profile says B744.
2. Got an Australian licence/passport already ? If not consider how your work visa application will go with a fair number of Aussie pilots unemployed.
3. Low cost, therefore IF you're in a full service airline expect a bit of a surprise when it comes to the terms and conditions.
4. Main base is Melbourne, secondary Adelaide
possibly others in the future. Do you really want to be in Melbourne when you could live in nicer places such as Doha or Abu Dhabi instead ?