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

📋 Description

• Join a full-scratch project renewing core banking systems.
• Develop and operate backend applications in Java/Kotlin for core banking.
• Design for performance and high reliability as a financial platform.
• Collaborate on architecture selection and middleware choices.
• Understand and leverage infrastructure to resolve system challenges.
• Contribute to microservice performance tuning and monitoring.

🎯 Requirements

• 3-5 years of backend development experience
• Practical experience in Java; strong skills in other languages
• Data structures, algorithms, OOP fundamentals
• DB schema design (RDB, NoSQL) and efficient query creation
• Web app development and tuning with security considerations
• English business-level conversational proficiency

🎁 Benefits

• VISA sponsor + Relocation support
• PayPay Inside-Out and related corp. blogs access
• Health/pension/insurance, 401K, language support
• Flexible work arrangements with hybrid office expectations