Senior Backend Engineer

PayPay Card Corporation, established in 2021, is revolutionizing the credit card industry in Japan by integrating with the PayPay payment platform that serves over 66 million users. As a Senior Backend Engineer, you'll be instrumental in building and rebuilding scalable services that enhance the credit card experience. The role focuses on two main angles: elevating the credit card experience through new functionalities and re-architecting systems for optimal performance.

The position requires expertise in Java/Spring Boot development, with services running on AWS infrastructure. You'll work with modern technologies including Spring Boot 2/3, Java 11/17, and various AWS services like ECS, CloudFormation, and CloudWatch. The team emphasizes continuous improvement, quality standards, and effective communication in a multicultural environment.

Key responsibilities include designing large-scale systems, managing stakeholder relationships, debugging complex issues, and mentoring team members. The ideal candidate should have strong OOP experience, database knowledge, and solid understanding of distributed computing. The role offers competitive benefits including flexible working hours, annual leave, performance-based incentives, and comprehensive insurance coverage.

Working at PayPay Card means joining a fast-paced FinTech leader that values technical excellence, innovation, and collaborative problem-solving. The company provides a multicultural environment with both English and Japanese speakers, offering opportunities to work on challenging problems while contributing to Japan's cashless payment evolution.