Backend Engineer / バックエンドエンジニア (Core Banking System)

📋 Description Develop and operate backend applications for core banking systems (C or Java). Design for performance and stability to maintain high reliability as a financial platform. Leverage infrastructure to solve system challenges and design architecture with appropriate Perform microservices performance tuning, monitoring, and alert handling. Secondment to PayPay Bank as a project member after joining. Collaborate to build a new organization and environment for core banking systems. 🎯 Requirements 3-5 years of backend development experience Practical experience in C or Java; strong skills in other common languages Understanding of data structures, algorithms, and OOP basics Schema design in DB (RDB, NoSQL) and efficient query creation Web application development and tuning with security considerations Japanese language ability (Native or JLPT N1/N2 equivalent) 🎁 Benefits VISA sponsor + Relocation support Social insurance, pension and paid leave Company benefits and blogs for learning and growth