Around $4.

And developers can certainly make over 100/hr, but in my experience that would mean contracting/consulting as a specialist with at least 5 years experience in a given technology.

(in melbourne) $4 a coffee for fancy cafes in expensive parts of town. $0 a coffee if you dont care and are happy to swig whatever is free at work.

can certainly hit $aud 100 / hour and upwards for full-time contract gigs with bigcos (banks, finance, telcos). can hit that with less than 5 years experience.

if the client knows what they're doing they may also assess for ability, not just years experience. but at least some big clients don't know what they're doing and are overrun with whatever resources of varying ability bodyshops manage to palm off onto their projects.

Private companies are probably more likely to account for actual experience. I've mostly dealt with government contracting where 5 years seemed to be the magic threshold.

so you just make and save money in Australia? Rent and all are normal prices or what's the story ? I know the economy has been booming for 20+ years.

The housing market, and thus rents, have also boomed in that time. General cost of living is also pretty high in Australia.