If it's the same as an SSO (school support officer), all I did was get the things that the department required, DECD police clearance, Mandatory reporting certificate, and I also did senior first aid as extra and then submitted an application on the DECD website under jobs. I listed on my application what schools I would be interested in and what skills I have.

When I first did my application I had no desire to work with children as I was in a bad place myself, but listed clerical/secretarial (I have a Cert II in Business Administration) and library skills. I have volunteered for a year at a local public school library 3 days a week, which is where i built up my library skills.

I currently don't have an SSO job, but I am registered. There is a chance I might get offered placement next year at the school I am volunteering at doing Admin work, but if it doesn't happen I will be sending my resume to other local schools and begin to look at working with the children.