Mainframe IMS System Programmer

Job Description:

We are looking for an experienced Mainframe IMS System Programmer to support, maintain, and enhance IBM IMS environments within z/OS. The role covers IMS system administration, database and transaction support, performance tuning, troubleshooting, security, disaster recovery, automation, and collaboration with application and infrastructure teams.

Key Responsibilities

• Install, configure, maintain, upgrade, and troubleshoot IBM IMS and related products in z/OS environments.
• Manage IMS Control Regions, DBRC, dependent regions, IMSplex components, IMS Connect, databases, transactions, message queues, and related configuration datasets.
• Support IMS database administration, including backup, recovery, image copies, reorganization, DBRC/RECON management, and database integrity.
• Configure and maintain IMS transaction processing environments, including MPRs, BMPs, scheduling, routing, workload management, and high-volume transaction support.
• Support IMS Connect and integration with distributed platforms, TCP/IP, APIs, IBM MQ, CICS, and other enterprise middleware solutions.
• Monitor and tune IMS system, database, transaction, region, and connectivity performance using tools such as OMEGAMON, MainView, and native IMS facilities.
• Perform root-cause analysis for IMS system, database, transaction, connectivity, region, and application issues, including dump, log, trace, and SYSLOG analysis.
• Maintain IMS security and compliance controls, including RACF integration, access troubleshooting, secure communication, audit support, and vulnerability remediation.
• Develop, maintain, and test IMS backup, restart, recovery, and disaster recovery procedures.
• Create and maintain JCL, procedures, scripts, automation, technical documentation, implementation plans, and operational standards.
• Follow ITIL-based incident, problem, change, and release processes; participate in major incidents, production support, and on-call rotations as needed.
• Collaborate with application, z/OS, CICS, DB2, MQ, storage, network, security, middleware, operations, and architecture teams.

Required Qualifications

• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related field.
• 5+ years of experience in IBM IMS system programming and administration in z/OS environments.
• Strong knowledge of IMS architecture, including Control Regions, DBRC, dependent regions, IMSplex, and IMS Connect.
• Experience with IMS databases, DBRC/RECON management, backup, recovery, reorganization, and recovery utilities.
• Hands-on experience with IMS configuration, maintenance, upgrades, troubleshooting, performance monitoring, and tuning.
• Strong knowledge of z/OS, JCL, JES, TSO/ISPF, SDSF, SMP/E, APAR/PTF management, and IBM software maintenance.
• Knowledge of IMS transaction processing, message queues, MPRs, BMPs, application regions, IMS Connect, and TCP/IP-based integration.
• Familiarity with OMEGAMON, MainView, RACF, z/OS security concepts, dump analysis, and root-cause analysis.
• Strong analytical, troubleshooting, communication, and collaboration skills.

Preferred Qualifications

• IBM IMS certification or equivalent IMS technical training.
• Experience with IMSplex, CSL, ODBM, OM, RM, shared queues, and high-availability architectures.
• Knowledge of IBM MQ, CICS, DB2, OTMA, REXX, JCL automation, and mainframe scripting.
• Experience supporting large-scale production IMS environments, modernization initiatives, API integration, and disaster recovery exercises.

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