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

Are you interested in this position? Apply by clicking on the “Apply Now” button below!

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