Rakuten

have a lot of opening positions (because employees are constantly and quickly leaving).

Working at Rakuten means you accept to be a slave of Mikitani, the CEO.

As a recent episode, in 2023 every Rakuten employee (including every software engineer) is forced to sell Rakuten Mobile to at least two friends. This is announced as a "top priority task," and people who fail to sell out enough friends will be seriously punished in performance evaluation.

As it's clear that this whole "employee referral campaign" thing is just ridiculously hurting R-Mobile's social image (if it were you, would you buy a product from a desperate friend who is forced to sell the product for a desperate company?), the only reasonable explanation of this campaign is that it's a political movement. With this, Mikitani wants to test who will brainlessly follow his order, no matter how stupid the order is. This kind of staff is the employees Rakuten is expecting (in case you are wondering if you are the right person for them).