Mainframe DB2 Systems Programmer
Phoenix, AZ (Hybrid)
Plano, TX
Charlotte, NC
Richmond, VA
Jacksonville Beach, FL
Pennington, NJ
Chicago, IL
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.
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)
Best Regards, Naresh J | Team Lead
M 732 640 5076 | Jnaresh@ipolarityllc.com https://www.linkedin.com/in/naresh-janapati-53ab8576/
200 Centennial Ave, Suite 204, Piscataway, NJ 08854
Flexible work from home options available.