4 times of interviews. Resume has to be in Japanese for the application. No need for good English skill. Software skill requires some basic ones. Soft skill is also important.
The interview process is firstly with HR, and then techinical interview for 1 ~2 rounds, and final interview with the director of the organization.
And there will be a offer meeting if you pass.
I applied online. The process took 4 weeks. I interviewed at SoftBank (Tokyo) in Apr 2018
Interview
Phone interview - IQ test - 2nd Interview - Coding test -Interview at headquarters - Offer
The first interview was on Skype. All interview process was smooth and they were one to one.
Interview questions [1]
Question 1
Basically questions about the personality than the educational background