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Mainframe IMS System Programmer

TechVirtue LLCPhoenix, AZ🇺🇸United StatesPosted 8 Sept 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
Phoenix, AZ, United States
Posted
Yesterday
TCP/IPAnsiblePhoenixRESTServiceNow

Job Description

Job Title: Mainframe IMS System Programmer
Location: Phoenix, AZ
Duration: Long Term Contract
 
Job Description:
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:
  • 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:
  • 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, TCPIP, ZOS Connect, Assembler routines.
  • Skill and experience with IMS Routines & Exit Routines will be a big plus.

 

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