Senior Mainframe DB2 DBA — Performance & Automation

Australian Taxation Office; Sydney; On-site; AUD 120,000 - 160,000; Full time

Job summary

Australian Taxation Office is seeking an experienced IT Mainframe DB2 Database Administrator to join the Mainframe Delivery Centre. You will manage multiple databases, data integration and DB2 tools to support critical tax systems and provide expert guidance across teams and stakeholders.

You will contribute to DB2 design, monitor performance, and collaborate with external providers to ensure optimal operation during peak periods.

Qualifications

• Advanced experience administering and supporting mainframe DB2 environments.
• Expertise with table reorganisation, data load, high-performance unload, image copy and log analysis.
• Strong knowledge of DB2 design, integration, migration, security, maintenance, backup and DR testing.

Responsibilities

• Lead mainframe DB2 administration and problem solving for production and development environments.
• Collaborate with stakeholders, vendors and service providers to ensure optimal DB2 performance.
• Monitor performance, analyse statistics and implement tuning improvements.
• Drive automation, modernisation and process improvements in DB2 services.
• Participate in on-call roster to provide out-of-hours support.

Skills

Mainframe DB2

Technical leadership

DB2 performance tuning

Incident resolution

Automation & modernization

Job description

Australian Taxation Office is seeking an experienced IT Mainframe DB2 Database Administrator to join the Mainframe Delivery Centre. You will manage multiple databases, data integration and DB2 tools to support critical tax systems and provide expert guidance across teams and stakeholders.

You will contribute to DB2 design, monitor performance, and collaborate with external providers to ensure optimal operation during peak periods.