Senior Database Administrator - PostgreSQL & Enterprise DBMS

Unisys; City of Melbourne; On-site; AUD 110,000 - 140,000; Full time

Job summary

Unisys is seeking an experienced Database Administrator to manage enterprise databases across multiple accounts, ensuring performance, security and reliability. The role demands hands-on expertise with MS SQL Server, Oracle, PostgreSQL, and IBM DB2, plus ETL, SQL scripting, Shell and PowerShell automation.

You will work independently and with cross‑functional teams to deliver seamless database operations, backups, disaster recovery, and optimized data processing for enterprise service delivery.

Qualifications

• Minimum 6 years experience as a DBA in enterprise or multi-client environments.
• Strong hands-on experience with MS SQL Server, Oracle, PostgreSQL, IBM DB2 administration.
• Experience with ETL tools and data integration processes.
• Strong SQL, Shell scripting, and PowerShell skills.
• Knowledge of database performance tuning, high availability, replication, backup, and recovery.
• Ability to manage multiple priorities and accounts/projects simultaneously.
• Australian Citizenship/PR holders are preferred.

Responsibilities

• Administer, monitor, and maintain databases including Microsoft SQL Server, Oracle, PostgreSQL, and IBM DB2.
• Perform database installation, configuration, upgrades, and patching.
• Monitor database performance, identify issues, and apply tuning to optimize systems.
• Manage ETL processes for data integration, transformation, and reporting.
• Develop, maintain, and optimize SQL scripts for automation, reporting, and data manipulation.
• Create and maintain Shell scripts and PowerShell scripts for routine maintenance, automation, and operational efficiency.
• Implement and manage database security, user access, backup, and disaster recovery processes.
• Troubleshoot database issues in production and non-production environments.
• Manage multiple accounts or projects at the same time, prioritizing tasks to meet deadlines and maintain service quality.
• Collaborate with development, infrastructure, and support teams to support application deployments, resolve issues, and improve database processes.
• Document procedures, system changes, and best practices for knowledge sharing and continuity.

Skills

SQL scripting

Shell scripting

PowerShell

Database performance tuning

High availability / DR

Cross-functional communication

Tools

MS SQL Server

Oracle

PostgreSQL

IBM DB2

ETL tools

Job description

Unisys is seeking an experienced Database Administrator to manage enterprise databases across multiple accounts, ensuring performance, security and reliability. The role demands hands-on expertise with MS SQL Server, Oracle, PostgreSQL, and IBM DB2, plus ETL, SQL scripting, Shell and PowerShell automation.

You will work independently and with cross‑functional teams to deliver seamless database operations, backups, disaster recovery, and optimized data processing for enterprise service delivery.