If you have no teaching experience, international schools will be extremely tough. You will / should need a TEFL, your degree cert and transcripts and some experience of working with children.
Money wise will vary a lot, but it's not usually well paid - completely manageable don't get me wrong and some schools do pay well, but usually to actual trained, experience and qualified teachers. I taught pre-K through to high school, in an international school, did extra tutoring, planned the majority of the curriculum for English, so good work is out there for qualified people 🙏🏽