Database Administrator (DBA)

Remote OK - Anywhere in Japan
Full-time
May 22, 2025

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

Required Qualifications

More than 5 years of DBA experience with a minimum of 3 years ORACLE or MySQL experience
More than 3 years of AWS experience
Practical experience with Infrastructure as Code (IaC) using Terraform.
Interested in new technologies and willing to improve operational quality and efficiency
Strong scripting skills (Python, Shell, etc.) for automation and tooling.
English business proficiency

Preferred Qualifications

Experience in automating operations related to Database or AWS
Familiarity with containerized environments (Docker, Kubernetes).
Hands-on experience in operating AWS Aurora database (Postgres/Mysql compatible)
Hands-on experience in operating AWS RDS for ORACLE
Japanese conversational proficiency is a plus

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About PayPay Card

PayPay Card was established in 2021 to provide users with more accessible and convenient FinTech services that were previously not possible with credit cards and credit services by integrating with the PayPay payment platform.

PayPay Card is looking for professionals who are passionate about refining their products at an overwhelming speed that no other company can match, and promoting the spread of cashless payments in Japan.

Japanese Language Policy
PayPay Card started internationalizing our engineering teams in 2024. They are looking for someone who has business English proficiency and an open mind to embrace Japanese culture.

PayPay Card is building up an English speaking product engineering team from scratch. They are on the move of creating an international friendly environment like PayPay's Product Division, where English is the main language and having interpreters who can provide simultaneous translation when necessary.
Paid Leave
- Holidays: Saturdays and Sundays, National holidays (in Japan), Year-End and New Year Holidays, Company-designated special days
- Paid Leave: Annual leave (up to 16 days in the first year, granted proportionally according to the month of employment. Can be used from the date of hire)
Benefits
👶 Parental Leave

💚 Translation support (EN<>JP)

🧡 Interpretation support (EN<>JP)

💟 Complete health and social insurance
Engineer Interview Process
PayPay Card's Hiring process are as below:
- Application Review (English CV is required)
- Coding Test or Take Home Assignment (only applied to required positions)
- 3-4 Interviews (including both technical and behavioral interview)
- Offer Meeting
Remote Work
PayPay Group is committed to maintaining a "Day 1" mindset, bringing to life visions of the future that no one else can even imagine. At PayPay Card, we provide an environment where everyone can deliver outstanding performance as professionals, through a flexible work style that includes remote and office.
Work style
- Super Flex Time with no core time
- In principle, from 9:00am - 5:45pm (actual working hours: 7h45m + 1h break)
PayPay Card is part of PayPay Group
PayPay, a FinTech company that has achieved more than 65M users (as of August 2024) within around six years since its launch in 2018, is rapidly expanding its business scale as a payment platform used by approximately one out of every two smartphone users in Japan. By integrating with PayPay payment platform, PayPay Card is able to provide users with more accessible and convenient FinTech services that have not been possible with credit card services.

Internationalizing engineering division
PayPay Card is aiming to become No.1 domestic credit card company and we believe having a multinational engineering team like PayPay will be a key to growth. We want to improve our engineering practices to meet worldwide industry standards and we are targeting to internationalize the engineering division, introduce scalable engineering practices and improve cross-company interaction.

Building an English product team from scratch
PayPay Card is building up an English speaking product engineering team from scratch. We are on the move of creating an international friendly environment like PayPay’s Product Division, where English is the main language and having interpreters who can provide simultaneous translation when necessary.