I applied online. The process took 2 months. I interviewed at Rakuten in Feb 2018
Interview
One coding question through Codility. Basically about maximum, minimum and the difference from the mean (or standard deviation? forgot.) Not a difficult one but have to consider both time and space complexity. Did not get through it.
Interview questions [1]
Question 1
The question was not the rectangle one, but not so difficult at all. The surprising thing was that I thought I did it right within the both complexities but got the rejection soon.