The process took about 1.5 months; I applied through an outsourced recruiter who found me on LinkedIn. The recruiter was very good, but PayPay itself consistently gave the impression that they were not interested in hiring at all. The 1st round involved a coding test, which I successfully passed (they got back to me after 10 days). The 2nd round was a technical interview regarding my coding assignment, and the interviewer was very skilled and positive. I successfully passed that round as well, and it was a positive experience. The 3rd round focused on security and system design. I answered all the security questions in the first 30 minutes, and then there was a 30-minute system design part. I tried to present a concept for QR-based payment, and the idea was clear but lacked details because of time. The interviewer didn't engage much; he remained mostly silent, and despite my efforts to initiate a dialogue, we didn't establish much communication. Consequently, I presented a conceptual solution without additional details, which we didn't have time to discuss. Honestly, I was confident I would pass this round too. BUT after a week I received a rejection without any explanation of the reasons or feedback. If you value your time, please don't apply for this position. The interviews were not difficult, but they consume an incredibly large amount of time, and it's not worth it.