Senior Dba

**Infrastructure and Security**

**Hồ Chí Minh**

**Full-time**
Application Deadline: 12/09/2025 - 11/10/2025**Role**:

As a member of the DBA team, you will be responsible for managing and optimizing our large-scale database infrastructure to ensure the stability, data reliability, integrity, security, and performance of all TIKI services. You will handle database provisioning, performance tuning, high availability, backup/recovery strategies, designing scalable database architectures, access control, and incident troubleshooting to keep our data systems healthy 24/7. Our databases handle high volumes of transactions and terabytes of data across PostgreSQL, MySQL, MongoDB, ClickHouse, ScyllaDB, and more. Your work directly supports a seamless and reliable experience for millions of users across all TIKI platforms.**Requirements**:
- 3+ years of experience operating *nix OSes on servers and using Linux as the main OS on personal laptops/PCs (e.g., CentOS, Rocky, Ubuntu, Debian).
- 3+ years of hands-on experience as a DBA in large-scale production environments.
- Expertise in at least one major RDBMS (e.g., PostgreSQL, MySQL).
- Strong understanding of database internals, storage engines, indexing, partitioning, and replication.
- Proven experience in performance tuning and optimization (PTO) at both SQL query and infrastructure levels.
- Familiarity with high availability solutions (e.g., clustering, replication).
- Experience in scaling database and infrastructure solutions to support large, high-traffic systems.
- Experience with Change Data Capture such as Kafka Connect.
- Experience with database monitoring and management tools (e.g., Prometheus, grafana, exporters, etc.).
- Knowledge of cloud database services (Google Cloud SQL, AWS RDS/Aurora) is a plus.
- Experience working with Google Cloud Platform (GCP) is advantageous.
- Strong analytical and problem-solving skills.
- Understanding of Internet Protocols and Networks.
- Proactive working attitude, open-minded, and result-oriented.
- Excellent communication and documentation abilities.
- Available for off-hour support.
- Ability to work under high pressure.

**Nice to Have**:

- Experience with NoSQL databases (e.g., Cassandra, ScyllaDB), data streaming platforms (e.g., Kafka), and data warehouse platforms (e.g., BigQuery).
- Exposure to CI/CD pipelines and infrastructure-as-code (e.g., Terraform, Ansible, Git).

**Responsibilities**:
- Design, implement, and optimize database schemas, indexes, and queries to improve performance, scalability, and reliability.
- Monitor database performance metrics, proactively identify bottlenecks, and troubleshoot incidents to ensure system stability and minimize downtime.
- Review and automate database changes execution, deployment processes, user creation, and system permissions.
- Implement and manage backup, recovery, replication, disaster recovery strategies.
- Proposing cost-effective solutions.
- Set up and manage database partitioning, indexing strategies to handle large data volumes efficiently.
- Conduct regular security audits, patching, and compliance assessments to maintain database security and integrity.
- Automate routine DBA tasks and implement monitoring solutions to ensure database health and availability.
- Participate in on-call rotations and promptly respond to database-related emergencies outside business hours.
- Document database configurations, procedures, and troubleshooting guidelines for knowledge sharing and compliance.