Senior/ Lead Database Administrator

About LINE MAN Wongnai

LINE MAN Wongnai is Thailand’s Leading On-Demand Delivery and Lifestyle e-Commerce platform services. We build technology to help Thai people live better, to empower all local businesses by creating an end-to-end food ecosystem through our channel LINE MAN and Wongnai. Connected consumers, riders, and local businesses and improved the daily life of all parties with restaurants nationwide. And because we are local, we provide the deepest variety and services that are tailor-made for Thai people.

We are looking for a Senior Database Administrator with expertise in managing and optimizing complex large-scale database environments. The role involves designing and automating database infrastructure, ensuring reliability, and optimizing performance. You'll work alongside engineering teams to provide guidance and maintain database health using monitoring tools.

What you’ll do:

• Provide expert database administration support for LMWN's databases, including AWS Aurora (MySQL & PostgreSQL) and our large-scale, self-hosted MongoDB replica sets.
• Play a key role in designing and implementing our database infrastructure, including building out MongoDB sharding and a robust Patroni PostgreSQL cluster.
• Develop and implement automation tools to streamline database operations, minimize manual intervention, and proactively address potential issues.
• Champion database reliability by managing all database scripts, schema changes, and automation code within Git, ensuring a consistent and auditable workflow.
• Lead the charge in performance tuning, troubleshooting, and root cause analysis for all database-related incidents.
• Work closely with our engineering teams to optimize database usage, review changes, and provide expert guidance on best practices
• Utilize Grafana and other monitoring tools to maintain a vigilant watch over our database health and ensure the highest levels of availability and reliability.

What you’ll need:

• A Bachelor's degree in Computer Engineering, Computer Science, or a related field.
• At least 3 years of hands-on experience in database administration, with a proven track record of managing complex, large-scale database environments.
• Deep expertise in administering AWS RDS and Aurora (both MySQL and PostgreSQL).
• Strong experience with MongoDB, including replica sets and a solid understanding of sharding concepts.
• Proficiency in troubleshooting and resolving complex database issues.
• Experience with version control systems, notably Git, for managing code and configurations.
• A proactive mindset with a passion for automation and continuous improvement.

It’d be great if you have:

• Experience with Patroni for PostgreSQL high availability.
• Familiarity with containerization and orchestration technologies, particularly Kubernetes.
• Experience with Infrastructure as Code (IaC) tools like Terraform or Ansible.
• Proficiency in scripting languages such as Bash Shell Script, Python, or Go.
• Knowledge of monitoring and observability tools like Grafana and Prometheus.