There was an online coding test. If you pass the coding test, you will get a Skype interview or an on-site one, depending on your location, I guess. I was applying for an internship, so the process might be different for a full-time one. There might be more rounds of interview.
The online coding test was about finding the intersection of two rectangles.
The following metrics were computed from 3 interview experiences for the Rakuten Software Engineer role in United Kingdom.
Rakuten's interview process for their Software Engineer roles in the United Kingdom is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Rakuten's Software Engineer interview process in United Kingdom.