CICS SYSTEM PROGRAMMER

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.