Mainframe IMS System Programmer / NJ / NC / TX / FL / VA / IL(Hybrid - 3 days onsite)

Mainframe IMS System Programmer
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.
 Install, configure, and maintain IMS DB and IMS TM subsystems on IBM z/OS
 Perform version upgrades, maintenance, and patching to ensure system currency and stability
 Manage and maintain IMS system definitions, including DBDs, PSBs, ACB libraries, and control
regions
 Configure and tune buffer pools, parameters, and system resources to optimize performance
 Monitor IMS database and transaction performance, proactively identifying and resolving
performance bottlenecks
 Troubleshoot and resolve system issues by analyzing logs, dumps, abends, and database errors
 Support IMS utilities, backup/recovery processes, and disaster recovery testing
 Ensure seamless integration with z/OS, DB2, MQ, CICS, TCP/IP, and Sysplex environments
 Implement and follow ITIL/ServiceNow change management processes for all system updates
 Maintain accurate technical documentation and system configurations
Required Qualifications:

 7+ years of experience with IBM z/OS operating system
 Hands-on experience with IMS DB and IMS TM administration
 Deep knowledge of:
o DBD/PSB/ACB management
o IMS control regions and transaction processing
o Buffer pool tuning and performance optimization
 Experience with IMS utilities, backup/recovery, and DR strategies
 Strong troubleshooting skills (dump analysis, log analysis, abend resolution)
 Experience integrating IMS with:
o DB2, CICS, MQ, and distributed systems
 Familiarity with RACF security controls for IMS environments
 Experience with SMP/E, JCL, TSO/ISPF, SDSF
 Understanding of Sysplex and high availability architectures
Preferred Experience:
 Exposure to IMS modernization or API enablement (z/OS Connect, REST integration)
 Experience with monitoring tools (e.g., OMEGAMON, MainView, RMF)
 Knowledge of automation tools (REXX, Ansible, z/OSMF workflows)
 Experience with DB  control, TCPIP, ZOS Connect, Assembler routines.
 Skill and experience with IMS Routines & Exit Routines will be a big plus.