Mainframe IMS System Programmer

Mainframe IMS System Programmer

Phoenix, AZ

Onsite-Hybrid

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.

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:
  • DBD/PSB/ACB management
  • IMS control regions and transaction processing
  • 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:
  • 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, TCP/IP, z/OS Connect, Assembler routines
• Skill and experience with IMS Routines & Exit Routines will be a big plus