4 rounds in total.
First was a coding test.
Second and third interviews were mainly technical interviews. They asked technical questions about the project that I had worked on.
Final interview was a general interview.
Memory management, security, synchronized method, multi-threads.
The following metrics were computed from 9 interview experiences for the Rakuten Applications Engineer role in Japan.
Rakuten's interview process for their Applications Engineer roles in Japan is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Rakuten's Applications Engineer interview process in Japan.