Case Study: Rakuten Card achieves 40% faster month‑end credit‑card processing and greater agility with Oracle Cloud at Customer (Oracle)

Rakuten Card Expedites Business Growth with Oracle Cloud at Customer

Rakuten Card Co., Ltd., a fintech arm of Japan’s Rakuten Group that issues and manages credit cards, faced rapid growth—about 20% annually—driven by a national push toward cashless payments. Its 25‑year‑old, COBOL‑based mainframe could not keep up with peak workloads or support faster development, so the company needed a flexible, modern platform that would meet a tight migration window and minimize disruption to critical card services.

Rakuten Card migrated to Oracle Engineered Systems—Oracle Exadata and Exalogic—combined with Oracle Cloud at Customer, replacing the legacy environment with an on‑premises cloud and Java development stack. The move delivered 40% faster month‑end processing, enabled a one‑day data migration and a full system switch within a three‑day deadline, improved scalability and load balancing for peak events, reduced costs and testing time, and ensured PCI‑DSS compliance and stable, faster application development.

Rakuten Card

Hirofumi Iwasaki

Group Manager, Technology Strategy Group, System Strategy Department