Mainframe IMS System Programmer:
The Role:
We are seeking a highly skilled Mainframe IMS System Programmer to support and manage IBM z/OS IMS environments. The role is responsible for ensuring the stability, availability, performance, and security of IMS DB and IMS TM subsystems in a mission-critical banking or financial services environment.
Responsibilities:
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Install, configure, and maintain IMS DB and IMS TM subsystems on IBM z/OS
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Perform version upgrades, maintenance, and patching to ensure system currency and stability
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Manage and maintain IMS system definitions, including DBDs, PSBs, ACB libraries, and control regions
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Configure and tune buffer pools, parameters, and system resources to optimize performance
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Monitor IMS database and transaction performance, proactively identifying and resolving performance bottlenecks
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Troubleshoot and resolve system issues by analyzing logs, dumps, abends, and database errors
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Support IMS utilities, backup/recovery processes, and disaster recovery testing
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Ensure seamless integration with z/OS, DB2, MQ, CICS, TCP/IP, and Sysplex environments
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Implement and follow ITIL/ServiceNow change management processes for all system updates
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Maintain accurate technical documentation and system configurations.
- Required Qualifications:
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7+ years of experience with IBM z/OS operating system
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Hands-on experience with IMS DB and IMS TM administration
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Deep knowledge of:
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Experience with IMS utilities, backup/recovery, and DR strategies
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Strong troubleshooting skills (dump analysis, log analysis, abend resolution)
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Experience integrating IMS with:
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Familiarity with RACF security controls for IMS environments
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Experience with SMP/E, JCL, TSO/ISPF, SDSF
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Understanding of Sysplex and high availability architectures
Preferred Experience:
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Exposure to IMS modernization or API enablement (z/OS Connect, REST integration)
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Experience with monitoring tools (e.g., OMEGAMON, MainView, RMF)
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Knowledge of automation tools (REXX, Ansible, z/OSMF workflows)
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Experience with DB control, TCPIP, ZOS Connect, Assembler routines.
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Skill and experience with IMS Routines & Exit Routines will be a big plus.