Would speaking English, Chinese, and Japanese as a foreigner open up a lot of job opportunities?

I’m considering moving to Japan for work, but I’m hoping for a job that would also make decent money in US conversion.

I would probably go into stem, finance jobs, with a minor in international business.

I also run a press on nail business (for you guys out there, the nails your ladies wear on their fingers that cost a shit ton of money) for side money