ＰａｙＰａｙカード株式会社
About PayPay Card：
PayPay Card Corporation was established in 2021 to provide users a FinTech service that is more accessible and convenient compared to previous credit cards and credit services, by integrating with the PayPay payment platform, which has surpassed 69 million users since its launch (as of May 2025).
We are looking for people who are passionate about refining our products at an overwhelming speed that other companies cannot match, as well as professionals who are interested in promoting the spread of cashless payments in Japan and the use of these payments as a financial life platform. Let us work together to create new value for users.
※ Please note that you cannot apply or be selected in parallel with PayPay Corporation, PayPay Card Corporation and PayPay Securities Corporation.
Job Description
We are working to provide the best financial services to users in Japan. We empower PayPay Card products by realizing efficient, stable and optimized storage services. PayPay Card is looking for Database Administrators/Engineers who specialize in databases at scale on mission critical systems.
Main Responsibilities：
• Manage day-to-day database operations including monitoring, configuration, upgrades, scaling, backups, and data migrations.
• Continuously improve database operations through automation, tooling, and process optimization.
• Manage backups, replication, failover, and disaster recovery (DR) strategies to ensure business continuity.
• Implement and maintain database security policies, including access control and auditing.
• Ensure compliance with internal policies and external regulatory standards (e.g., PCI DSS).
• Troubleshoot and resolve performance and stability issues in production environments.
• Participate in on-call rotation and incident response using tools like PagerDuty to support 24/7 availability of critical systems.
• Collaborate with engineering teams to design scalable data models and optimize query performance.
• Research, test, and adopt emerging technologies in the database and cloud ecosystem to enhance platform capabilities.
• Create and maintain documentation for architecture, standard procedures, and operational best practices to support effective knowledge sharing and decision-making.
• Work closely with cross-functional teams to ensure the reliability, availability, and scalability of database infrastructure.
※ Depending on the team you are assigned to, there is a possibility of being required to work in the office.
Tech Stack：
• Languages: Python, Shell, SQL
• Databases: Oracle, MySQL (including Aurora MySQL and RDS for Oracle)
• Cloud: AWS (RDS, Aurora, EC2, S3, lambda, Secrets Manager, Cloudwatch etc.)
• Tools: GitHub, Terraform, Flyway
• Collaboration: Slack, Zoom, Jira, Confluence, Miro
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• Annual leave (up to 14 days in the first year, granted proportionally according to the month of employment. Can be used from the date of hire)
• Personal leave (5 days each year, granted proportionally according to the month of employment)
＊PayPay Group's own special paid leave system, which can be used to attend to illnesses, injuries, hospital visits, etc., of the employee, family members, pets, etc.
PayPayは2018年のサービス開始から既に7,000万人のユーザーを獲得し、今最も勢いのあるフィンテック企業です。ソフトバンク含むZホールディングスの圧倒的顧客基盤を背景に経済圏拡大を担う中心企業であり、PayPayカードはその核を担う存在。リモート勤務・スーパーフレックスを導入し、グローバル人材が集う環境で成長を加速できます。選考対策サポートも可能です。