Moving to Japan with My Japanese Fiancé, what’s the easiest Way to Find an ML Job?

Hi everyone, I hope you are doing exceptionally well!

I’m planning to move to Japan soon with my fiancé, who is Japanese, but we’re both still living in my home country for now. We’re getting married soon, and I’m trying to figure out the easiest and most realistic way to find a job in Japan as a Machine Learning Engineer.

Originally, I tried:

Job hunting from abroad before marriage
I applied to a few companies hoping to get a work visa (Engineer/Specialist), but honestly, it’s been super difficult. I've been rejected so many times, and the whole process was extremely frustrating.

So now I’m leaning toward:

Get married, apply for a Spouse of Japanese National visa, and job hunt from Japan

This visa would allow me to work freely in any industry without needing sponsorship, and from what I’ve seen, it’s much easier to find a job when you’re already in Japan and have the legal right to work.

A little about me:

I have more than 6 years of professional experience as a Machine Learning Engineer and Data Scientist, especially in NLP and computer vision.

I speak English fluently and hold JLPT N3 (working toward N2).

I’m especially interested in AI applications in healthcare, sustainability, or e-commerce, but I’m open to various opportunities in the ML/AI space.

If you’ve moved to Japan through marriage or transitioned into the tech industry there, I’d love to hear:

What's the easiest way to get a job as an ML engineer?

Was job hunting noticeably easier with a spouse visa?

Are there any companies or job boards that are more foreigner-friendly?

What can I do now (from abroad) to better prepare?

Thanks in advance 🙏 ありがとうございます！