Is it worth aiming to work at a university in Japan?

I have been studying Japanese language and culture since I was around 13 (and am now 29). I have been working as an English teacher in Japan and Europe, and am thinking about doing my masters in TESOL at the university of queensland next year and aiming to become a university lecturer.

I know that it is a tough egg to crack, and that university jobs are competitive as well as decreasing, but I am wondering if there is a even slight chance of me making it as a lecturer with a visa sponsorship.

I am around N1 level in Japanese though I have yet to pass the test; surely I will before completing my masters.

I am also open to working in easier markets like China to gain experience before going in. Any advice would be much appreciated!