Mainframe DB2 Systems Programmer

3 days ago
Phoenix AZ, Maricopa County, AZ; Arizona, United States Xaxis Solutions Full-time
Title: Mainframe DB2 Systems Programmer

Location:
Phoenix, AZ; Plano, TX & Charlotte, NC Exp – 10+ Mandate 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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