do you have your IELTS result already? If you have 6+ in all bands you can start filling out an EOI in SkillSelect. Depending on your points and which occupation list your job is on (SOL or CSOL), you may be able to express your interest in a 189 visa or you may have to hope for state/regional nomination (190/489).
As I wrote, create an Expression of Interest (EOI) in SkillSelect. The program will automatically calculate your points. Then you usually wait for an invite to apply for state nomination or the visa directly.