How can I get a job in Japan?

Hi!

I study marketing in Mexico and I'll be done with college in 2 years. For the most part I've worked doing marketing for tech-startups (I think it's amazing how much I learned on startups than on big companies). My goal is to get a job doing marketing in Japan (not teaching english nor spanish) in two years.

I'm half japanese so I have the citizenship but I'm still learning the language.

So what should I do these two years to achieve my goal?