Job Description

We are seeking a CICS System Programmer to administer, support, and optimize enterprise IBM CICS environments. This role focuses on CICS platform stability, availability, performance, configuration, and system-level troubleshooting, rather than application development.

Roles and Responsibilities

• Ensure CICS production and test regions are stable, available, and operating efficiently.
• Monitor system health, performance, and capacity, and proactively address availability risks.
• Install, configure, maintain, upgrade, and patch CICS Transaction Server (CICS TS) environments.
• Manage CICS regions, startup parameters (DFHSIT), resource definitions (RDO), and system configuration settings.
• Perform CICS version migrations, upgrades, and PTF maintenance.
• Monitor transaction performance, CPU utilization, storage usage, and system metrics.
• Troubleshoot performance issues, abends, dumps, logs, and traces to identify root causes and implement fixes.
• Provide production support and resolve complex CICS system-level incidents.
• Work with security teams to manage secure access to CICS resources using RACF.
• Support CICS integration with DB2, MQ, IMS, TCP/IP, and web services.
• Support CICS environments operating across Sysplex and distributed environments.
• Maintain accurate system documentation, configuration records, and operational procedures.
• Follow established ITIL and change-management processes for system changes and production support.

Required Qualifications

• 5+ years of experience working in IBM z/OS mainframe environments.
• Strong hands-on experience with CICS Transaction Server (CICS TS).
• Experience installing, configuring, maintaining, upgrading, and patching CICS.
• Experience managing CICS regions, DFHSIT parameters, RDO resource definitions, and startup configurations.
• Strong troubleshooting skills involving system dumps, logs, traces, abends, and performance issues.
• Experience with CICS performance monitoring and tuning tools.
• Strong understanding of mainframe system operations and infrastructure.

Preferred Qualifications

• Experience supporting Sysplex environments.
• Familiarity with monitoring tools such as OMEGAMON, MainView, or TMON.
• Experience integrating CICS with DB2, MQ, IMS, TCP/IP, and distributed systems.
• Knowledge of mainframe security and RACF.
• Automation or scripting experience using REXX, Python, or Shell.
• Experience supporting large-scale enterprise or financial services environments.

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