No, they strictly hire people to work in Japan for their main development.

But they do outsource a lot to companies, probably foreign companies. Half the credits are full of the employees of companies they outsourced to.

So if you want to develop something for CBU3 while living internationally, your best bet is convincing them to outsource to your company for its services.

The European and US offices handle other games such as Outriders, the translation teams, local lawyers and community teams. This has been clear from what jobs are offered by these offices over the years.