Mainframe DB2 Systems Programmer:
The Role:
We are seeking a highly skilled Mainframe DB2 Systems Administrator to manage and support DB2 for z/OS subsystems in a mission-critical enterprise environment. This role is responsible for installation, configuration, performance tuning, and overall health of DB2 subsystems, ensuring high availability, security, and optimal performance.
* This role requires employees to live in or around the Phoenix, AZ area. You will be responsible to be onsite 3 days a week. We will consider candidates who are willing to relocate to the area.
Responsibilities:
DB2 Installation & Configuration
- Install, configure, and maintain DB2 for z/OS subsystems
- Perform version upgrades, patching (PTFs/APARs), and system maintenance
- Manage subsystem configuration and initialization parameters
- Maintain core DB2 components:
- ZPARMs (DSNZPARM)
- Buffer pools
- Logs and BSDS
- Catalog and directory
Performance & Capacity Management
- Monitor and tune DB2 system-level performance (CPU, memory, I/O)
- Optimize:
- Buffer pools
- Locking and concurrency
- Thread and connection performance
- Support capacity planning and performance analysis using DB2 and system tools
High Availability & Data Sharing
- Manage and support:
- DB2 Data Sharing environments (Sysplex)
- Coupling Facility integration
- Workload balancing and failover
- Ensure DB2 availability and resilience through DR strategies
System Maintenance & Troubleshooting
- Analyze and resolve:
- Subsystem failures
- Dumps, logs, and abends
- Connectivity issues affecting DB2 operations
- Perform root cause analysis and implement preventive actions
- Support interaction with:
- Batch (JCL)
- CICS
- IMS
- MQ and distributed systems
Required Qualifications:
- 7–12+ years of mainframe experience
- 3–5+ years in DB2 Systems Programming / Administration
- Experience with IBM DB2 for z/OS and Replication products (Qrep, SQLrep and CDC) - software installation, version upgrades and maintenance, certification testing, documentation of operational procedures, disaster recovery testing
- Deep knowledge of:
- ZPARMs and subsystem configuration
- Buffer pools, logs, BSDS, catalog/directory
- Strong troubleshooting skills for:
- System-level DB2 issues
- Performance and connectivity problems
- Proficiency in:
- JCL, TSO/ISPF, SDSF
- SMP/E (preferred)
Preferred Qualifications:
- Familiarity with:
- DB2 utilities and performance tools
- Monitoring tools (OMEGAMON, MainView)
- Knowledge of:
- DevOps tools for mainframe (Endevor, ISPW, etc.)
- Exposure to:
- Cloud integration or hybrid architectures
- Experience with:
- Large-scale DB2 upgrades or migrations
- Performance optimization initiatives
- Knowledge of:
- Modernization tools (z/OS Connect, APIs)
- Experience with software support for BMC for DB2 Tools, IBM z/OS Connect, Software AG ADABAS and Natural products
- Programming experience with REXX
- Working knowledge of SQL, JIRA, SMP/E, RACF, TCP/IP, Network certificates, Splunk
- Working knowledge of other Mainframe Subsystems (CICS, IMS, MQ)
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