While a lot of companies have already experimented with outsourcing to offshore contractors, realised it doesn't work, and brought the roles back into local offices - Downer is only just beginning this experiment and there is very little job security.
The office in North Ryde is basically the same as any other North Ryde/Macquarie Park office, the pay is around average, sothere is not much incentive that separates it from the many many other corporate jobs in the area. Accept that it is particularly slow, offers very little in the way of growth (both salary wise and personal development), and offers zero perks.
I would say it's good for someone looking for short time employment, but even then it's nothing special
Flexibility (though not all departments are flexible)
Unsecure; no development; slow moving; no perks/incentives