How to build my resume for an international school in Japan?

Hi! I have been doing a lot of research on teaching opportunities in Japan. I am currently about to clear my credential and have two years of classroom experience as a CA teacher under my belt. I want to potentially look for jobs in Japan in 2027, so by then I will have almost 4 years of teaching experience and a cleared credential. Is this enough to land a job with my own classroom? I understand getting into a top tier school is difficult, but what about the mid tier international schools? Is there anything else (certifications) I can do until then to make myself a stronger candidate?

Thanks🌞

by casharks