Can I work in Melbourne, Sydney after graduating from the University of Western Australia majoring in petroleum engineering?

Well, nothing is difficult in the world. Australia still welcomes students with master's and postgraduate degrees, especially those majoring in mining. There is a shortage of people in this field in Australia, and the salary in this industry is the highest, because it is difficult to work in the mainland or Western Australia, and many people do not do it.

It's not impossible to work in Melbourne, but I shouldn't be able to come as soon as I graduate. There is no mining here. Generally speaking, I think if I work in the west and climb up slowly, I can reach the management level here. Or you can work stably in the west now, get PR and then engage in other industries.