Database Administrator (MariaDB, PostgreSQL, SQL)

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 Profile

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)

We offer

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.