Hi mate I'm a plumber/gasfitter at the start of the visa process. I've spent hours on here researching there's loads of helpful people on here. Basically first off you need to see which visa you are eligible for depending on how many points you have. I'm going to apply for the 189 general skilled visa which allows me to live and work anywhere. You then need to get your skills assesed by VETASSES, take the IELTS exam (if you need the points) then lodge your EOI (expression of interest).