Depends which company you joined.

My brother who had like 1 yr working experience in oz after graduated, came back to malaysia and took a 7.5k / month job here. ut now he quit cos he got a better offer 9 work 10 days and off 20 days with a daily rate of RM1.5k in the mines in oz. So he flies in n out of oz on his own expense. So kira average Rm10k / month lor minus the flight price.

42% tax for residents of oz, my brother has PR in oz.

Minus tax an flight expenses its about 10k a month. not a fair bench mark but its an option.