There are many institutes that offer variety of courses for different types of job profile. Many of them offer online courses with good content. You should approach the one that helps you to develop your knowledge about the field and gives you authentic certificate. To be qualified as a child care professional, you should get child care certificate 3 in Melbourne.
You can search on the websites of these institutes if they are offering child care certificate 3 or not. You should check their fees and content of the course before making the final decision. This will help you to get the best result for what you are looking for. Once you complete a course, your chances of getting hired increase and you can start your job as a child caretaker with good pay scale.