About the Role

We are seeking an experienced Mainframe Db2 System DBA / Systems Programmer to support our large-scale, 24x7 production environment. You will install, upgrade, migrate, and tune Db2 for z/OS (v12 and v13), manage the Db2 tooling stack, and play a key role in migrating third-party Db2 tools to their IBM equivalents.

Key Responsibilities

System DBA
Install, upgrade, migrate, consolidate, and configure Db2 systems, services, settings, and storage in line with standards and project or operational requirements.
Maintain installation and configuration procedures.
Lead the migration of CA Db2 tools to IBM Db2 tools: Log Analysis, Db2 Administration Tool, Db2 Query Monitor, OMEGAMON for Db2, High Performance Unload, and Sort products (Db2 Sort / Syncsort).
Convert CA Log Analyzer report jobs to IBM Db2 Log Analysis Tool report jobs.
Support incident management: respond to alerts, perform root cause analysis, repair and recover from hardware or software failures, and take part in the 24x7x365 on-call rota.
Coordinate and communicate with application support and the Technical Operations Centre during incidents.

Maintenance
Apply database patches and upgrades regularly and upgrade database administration tools and utilities.




Configure and add services as needed to maintain control, security, and stability.
Assist in the deployment, roll-out, and maintenance of applications per project or operational needs.
Perform ongoing performance tuning and resource optimization.
Configure database memory, disk, and I/O as required.

Mandatory Skills
Strong knowledge of Mainframe Db2 v12 and v13 system programming and administration
z/OS, SMP/E, SMS
Db2 tooling: Db2 Administration Tool, Db2 Log Analysis Tool, OMEGAMON for Db2 Performance Expert, Db2 High Performance Unload, Db2 Query Monitor, Db2 Sort, Syncsort, DB2 Connect
Experience migrating CA Db2 tools to IBM Db2 tools, including converting CA Log Analyzer report jobs
24x7 support experience in a large production environment
Experience working in an SLA-driven workplace
Excellent verbal and written communication and valuable interpersonal skills
Ability to work in a flexible, team-oriented, and constantly changing environment

Positive-to-Have Skills
Working knowledge of IT processes: Change & Configuration, Problem, Incident, and Service Readiness management, plus other established team procedures
ITIL V3 certification

📌 System Dba – Mainframe Melbourne
🏢 Cognizant
📍 Melbourne