by galled » Fri Feb 16, 2018 7:14 pm
I don't know anything about how ATC employment works in Oz. In the US there are ATC "trade schools" and a "lottery" the FAA rolls out every few years. If you get selected, they'll train you and give you room and board and pay you while you learn. You're also guaranteed a job too if you graduate. If you go to school, you have to bid on job openings and they want people with experience. So it's a catch 22 for that route. (Basically a scam for those schools unless there's a severe shortage of controllers. They want trainee/apprentices for a number of years before you can get a full ATC rating--works like pilot certificates.)
That said, the next best way to get there is to join the military as an ATC specialist. You then only need to take the certification exam and then bid for jobs.
I don't know how it works in Oz, but I imagine it's similar to here--becoming a CFI will take some work and dedication. Becoming a ground instructor is just a matter of passing the written tests. (I have Ground Instructor, Instrument Ground Instructor, and Advance Ground Instructor certificates.)
Lemon, while ATC is standardized around the world, certification to work in a country may vary greatly. There may also be barriers such as citizenship involved too. (Government work.)