Database Administrator SQL, PostgreSQL, MariaDB

Top 3 Reasons To Join Us An inspiring work environment. Annual salary reviews and adjustments. Company activities and parties. The Job

Job Description

Our HCM is an enterprise HR SaaS platform currently in active operation and continuous expansion. The system covers Core HR, Attendance, Payroll, Advance HR, Employee Self-Service (ESS), HR Development, Workflow Automation, System Integrations, and Custom Modules for Enterprise Clients.

The DBA will lead database operations for HR SaaS platform, ensuring high availability, performance, security, and reliability across hybrid cloud environments. This role is both hands-on and strategic — responsible for building and mentoring the database team from the ground up, and driving database modernization initiatives, including migration from SQL Server to MariaDB or PostgreSQL.

Key Responsibilities

• Manage SQL Server and PostgreSQL databases across hybrid cloud (AWS, Huawei Cloud) ensuring 99.9% uptime and performance SLAs
• Troubleshoot and resolve critical performance issues (slow queries, indexing, blocking, deadlocks)
• Implement monitoring, alerting, automated health checks, and self-healing integrated with Prometheus/Grafana
• Lead P0/P1 incident response and conduct root cause analysis
• Design and maintain backup, HA, and disaster recovery strategies
• Define database standards and provisioning for multi-tenant architecture
• Support SQL Server to MariaDB or PostgreSQL migration initiatives
• Collaborate with other members of the DBA team in other locations
• Ensure PDPA compliance and collaborate with internal teams and external vendors

Your Skills and Experience

Experience

• 5+ years of database administration experience in production, multi-tenant environments
• Bachelor’s degree in Computer Science, Information Technology, Computer Engineering, or a related field
• Master’s degree is an advantage
• Strong expertise in query optimization, indexing strategies, execution plans, and SQL performance tuning
• Hands-on experience with database monitoring and observability tools (e.g., Prometheus, Grafana)
• Solid knowledge of backup/recovery, high availability (HA), and disaster recovery (DR)
• Proven experience in crisis management, incident response, and root cause analysis (RCA)
• Experience building or mentoring technical teams
• Strong analytical, problem-solving, and communication skills

Preferred:

• Experience with MariaDB or PostgreSQL administration
• Kubernetes-based database operations
• Multi-cloud environments (AWS, Huawei Cloud)
• GitOps and CI/CD practices for database changes
• Knowledge of PDPA and data protection compliance
• Scripting skills (Python, Bash, PowerShell)

Language

• Able to communicate in English in a professional working environment (reading technical documents, participating in discussions with international team members)

Why You'll Love Working Here

• An inspiring work environment.
• Competitive salary packages with annual reviews and adjustments.
• Opportunities for training, education, and professional growth.
• A knowledge-sharing atmosphere with enthusiastic professionals.
• Company activities, team events, and social gatherings.
• Opportunity to become a Vietnam HR domain expert within a global organization