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# Mainframe DB2 Systems Programmer

- **Company:** Intone Networks
- **Location:** Chandler, AZ, United States
- **Experience:** Experienced
- **Contract:** Temporary contract
- **Skills:** Adaptable Database Systems, Application Programming Interfaces (APIs), JIRA, Customer Information Control System (CICS), Computer Programming, Data Sharing, IBM DB2, DevOps, Distributed Systems, Endevor, IBM Parallel Sysplex, Monitoring of Systems, Job Control Language (JCL), Rexx (Programming Language), Mainframes, Performance Tuning, IBM Resource Access Control Facility, Standard Sql, Subsystems, System Programming, TCP/IP, Management of Software Versions, Z/OS, Tso/ispf, Connectivity Problems, System Availability, Omegamon, Cloud Integration, Splunk
- **Published:** August 28, 2026
- **Apply:** https://www.dice.com/job-detail/5ef1336d-a19c-423b-8c34-906c759e37b8

## About the Role

* 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)

## Description

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


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