Job Description

Salary: Location Type: Employment Type:

About PayPay

PayPay is a FinTech company that has grown to over 69 million users (as of May 2025) since its launch in 2018. Our team is hugely diverse with members from over 50 different countries.

OUR VISION IS UNLIMITED_

We dare to believe that we do not need a clear vision to create a future beyond our imagination. PayPay will always stay true to our roots and realize a vision (future) that no one else can imagine by constantly taking risks and challenging ourselves. With this mindset, you will be presented with new and exciting opportunities on a daily basis and have the opportunity to grow and reach new dimensions that you could never have imagined. We are looking for people who can embrace this challenge, refresh the product at breakneck speed and promote PayPay with professionalism and passion.

Please note that you cannot apply or be selected in parallel with PayPay Corporation, PayPay Card Corporation and PayPay Securities Corporation.

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About the Organization/Team

The assigned organization is primarily advancing projects related to a next-generation core banking system. Our in-house engineers take the lead in planning, designing, and even coding the core banking system and business logic from scratch. As it's a new organization, you can collectively help create the development rules and environment.

After joining the company, you are expected to be seconded to PayPay Bank as a member of the above project.

Background of Recruitment

With rapid business growth, the number of employees is also expanding rapidly, and strengthening the organizational structure for business growth is an urgent task.

Job Responsibilities

• Development and operation of backend applications related to the new core banking system
• Designing and developing for both performance and stability to maintain high reliability as a financial platform
• Understanding and implementing how to utilize infrastructure to solve system challenges
• Designing architecture based on application requirements and selecting middleware, etc.
• Performance tuning, monitoring settings, and alert response for microservices

Attractiveness of This Position

• Gain experience from the design to the introduction of a next-generation core banking system
• Opportunity to collaboratively build a new organization and environment
• Acquire high-level planning and proposal capabilities through supporting top management's decision-making and high-level coordination with various departments and affiliated companies, including PayPay
• Gain frontline work experience in the industry at a company aiming to provide unprecedented financial services during a transformative period in the financial industry
• Ability to leverage PayPay's service and user base

Project Examples

• Applicat