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Staff Database Engineer (Customer Success)

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Staff Database Engineer (Customer Success) in Others new

  • Coupang
  • Full time
  • Email
  • Seoul, Korea

Responsibilities

  • Operate and manage large-scale production Amazon Aurora MySQL and Aurora PostgreSQL clusters.
  • Perform database upgrades, patching, parameter tuning, migrations, and Blue/Green Deployment-based changes with minimal downtime.
  • Monitor performance and resolve bottlenecks through query optimization, index tuning, configuration changes, capacity planning, and scaling recommendations.
  • Ensure database availability and reliability through proactive monitoring, incident response, on-call participation, failover strategy design, and recovery validation.
  • Develop Python automation scripts, internal tools, AI skills, prompts, and generated code or configurations for database operations.
  • Create and maintain standard operating procedures and contribute to internal operational frameworks.
  • Collaborate with application development, infrastructure, and security teams on database architecture, authentication, change management, and related projects.

Requirements

  • 10+ years of hands-on experience as a Database Engineer.
  • 2+ years of experience creating AI automation for personal or company workflows, storage, or code.
  • 5+ years of production experience managing Amazon Aurora MySQL and/or Aurora PostgreSQL.
  • Strong knowledge of MySQL 8.0+, including replication, InnoDB internals, query optimization, and troubleshooting.
  • Working knowledge of PostgreSQL extensions, vacuuming, and major version upgrades.
  • Proficiency with AWS database services and related services including Aurora, RDS, CloudWatch, IAM, VPC, and Parameter Groups.
  • Proficiency in Python or similar scripting languages for automation.
  • Experience operating databases in large-scale, high-traffic environments handling 10,000+ TPS.
  • Preferred qualifications include English communication skills, database Blue/Green Deployment and migration experience, database security expertise, Infrastructure as Code experience with Terraform or CloudFormation, monitoring experience with Grafana or Prometheus, CI/CD and GitOps experience, and experience with NoSQL or NewSQL databases.

Benefits

  • Opportunity to manage large-scale databases for one of the world's largest e-commerce platforms.
  • Exposure to AWS database technologies and cloud-native architectures.
  • Collaborative and diverse team environment with global colleagues.
  • Continuous learning and professional development opportunities.

Coupang

Coupang is a technology and Fortune 150 company listed on the New York Stock Exchange (NYSE: CPNG) that provides retail, restaurant delivery, video streaming, and fintech services to customers around the world under brands that include Coupang, Eats, Play, Rocket Now, and Farfetch.

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