Rakuten Software Engineer interview questions

The process constists in a Codility online test and a pre-recorded video presentation. There is normally interviews after this, but I did not pass the first step. It is not clear to me why I did not pass the first round since I believe I perfectly solved the (easy) programming test on Codility. I think it is more the fact that I mentioned I changed my job several times in a few years, or anything on my resume that was not to their taste. They did not explain why I have been pushed aside except mentionning that they were impressed by my credential and experience although they have had a competitive pool of candidates (probably a standard formula to reject someone).

I applied through campus, the selection process takes very long time. First we submitted our resume online, after some time they emailed us with a timed coding test, the test was easy. Then after that we had a recorded interview which you have to submit online. After these two rounds, then you will be contacted to go to the office for interview. The interview questions were all general questions, nothing unexpected.