Coupang is one of the largest and fastest growing e-commerce platforms on the planet. We are on a mission to revolutionize everyday lives for our customers, employees and partners. We solve problems no one has solved before to create a world where people ask, “How did we ever live without Coupang?” Coupang is a global company with offices in Beijing, Los Angeles, Seattle, Seoul, Shanghai, and Silicon Valley. 

 Job Overview: 

As our Senior Database Engineer for Database Engineering Team, you will be responsible for  building the next generation database platform to support the fast growth in eCommerce and other business areas. Our mission is to provide a highly reliable, easily scalable, and generic database platform for our business so they can continue to grow without worrying about system limitations on storage.

Key Responsibilities:

  • Design and implement future architecture for database platform based on modern database engines and solutions
  • Large scale database server clustering, replication, and HA/DR, for MySQL, PostgreSQL or other open source databases
  • Build DevOps tools to help managing hundreds of database clusters and thousands of instances in cloud and on-premise environments
  • Build monitoring and alert tools to maintain health of the system
  • Database performance tuning, review architecture of transactional systems, provide design inputs
  • Design and implement disaster recovery processes and procedures
  • Design sharding and implement database middleware solution


  • 3+ years of experience RDBMS databases (MySQL, PostgreSQL, or other) in highly available, high throughput environment
  • 3+ years of Linux/Unix system maintenance and troubleshooting
  • 1+ years of experience in database performance tuning and troubleshooting
  • Programming and scripting skills (Bash, Python, Go preferred)
  • Strong experience with benchmarking tools and da
  • Bachelor's degree in computer science or equivalent

 Preferred Qualifications:

  • Experience with various types of databases including new database engines (MPP, NoSQL, NewSQL, DBasS, etc)
  • Various HA and replication solutions for MySQL and PostgreSQL
  • Experience with AWS services such as RDS, EC2, EBS, S3, etc
  • Knowledge of distributed systems like Kafka, Cassandra, HBase, etc
  • Master's degree in computer science or equivalent
  • Familiarity with DevOps and SRE concepts


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