Japanese national born abroad, plans to move to Japan and work there. Need help.

So I just finished my engineering degree and plan to work in Japan by 2025 in the IT field. I have been learning Japanese as to assure myself that I can communicate. I was wondering if anyone can guide me on how I can start renting an apartment and apply for jobs in Japan. I only have a Japanese passport and Family registry based in shizuoka but I plan to move to Fukuoka. All help is greatly appreciated!