Senior PostgreSQL & Cosmos DB DBA — Scale & Reliability

Hammerjack Pty Ltd; Philippines; On-site; PHP 900,000 - 1,700,000; Full time

Job summary

Hammerjack Pty Ltd is looking for a Database Administrator (DBA) with hands-on PostgreSQL and Azure Cosmos DB experience to support and operate critical database platforms across the enterprise.

You will manage PostgreSQL and Cosmos DB administration, ensure security and auditing, and collaborate with application teams to maintain performance, availability, and compliant data management across environments.

Qualifications

• 4+ years hands-on DBA experience
• PostgreSQL and Azure Cosmos DB in enterprise environments
• Strong SQL and performance tuning skills
• Experience with backup, recovery, replication, and HA
• Knowledge of Azure cloud services

Responsibilities

• PostgreSQL database administration across production and nonproduction environments
• Install, configure, and maintain PostgreSQL databases
• Perform upgrades, patching, migrations per change management
• Monitor health, performance, replication, and capacity
• Troubleshoot performance issues (SQL, locks, indexing, resources)
• Implement and manage high availability and replication configurations
• Support security, auditing, and SOX/SOC requirements
• Partner with application teams on deployments and resilience

Skills

PostgreSQL

Azure Cosmos DB

SQL tuning

Cloud services

Security/compliance

Incident response

Tools

Monitoring tools

Backup & recovery tooling

Job description

Hammerjack Pty Ltd is looking for a Database Administrator (DBA) with hands-on PostgreSQL and Azure Cosmos DB experience to support and operate critical database platforms across the enterprise.

You will manage PostgreSQL and Cosmos DB administration, ensure security and auditing, and collaborate with application teams to maintain performance, availability, and compliant data management across environments.