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We are seeking an experienced CICS System Programmer to support and maintain IBM CICS Transaction Server (CICS TS) environments on z/OS. This role involves installation, customization, maintenance, and performance tuning of CICS to support critical enterprise applications. The successful candidate will collaborate with application developers, DB2 DBAs, MQ administrators, z/OS system programmers, and operations teams to ensure the continuous stability and optimal performance of our online transaction processing systems.
Job Responsibility:
Install, configure, and upgrade IBM CICS Transaction Server (CICS TS) on z/OS
Customize and maintain CICS regions, exits, and related system components
Monitor and tune CICS performance, ensuring high availability and responsiveness
Troubleshoot and resolve system and application-related issues within CICS environments
Implement and maintain CICS security using RACF or equivalent tools
Work with development and infrastructure teams to support application deployment and integration
Create and maintain system documentation, job procedures, and recovery processes
Participate in disaster recovery planning and testing
Provide on-call support and after-hours assistance for critical issues or scheduled maintenance
Ensure compliance with internal standards, audit requirements, and best practices
Requirements:
7+ years of hands-on experience as a CICS Systems Programmer in a z/OS mainframe environment
Deep knowledge of CICS TS architecture, internals, and system exits
Strong expertise in CICS installation, configuration, and maintenance
Proficient in SMP/E, JCL, REXX, and mainframe scripting languages
Experience with CICS performance tuning and monitoring tools
Understanding of z/OS subsystems including DB2, MQ, and JES2/JES3
Familiarity with automation, job scheduling, and monitoring tools
Excellent communication and coordination skills for working with cross-functional teams
Experience with ITIL processes (Change, Incident, and Problem Management)
Nice to have:
IBM Certified Specialist – CICS Transaction Server for z/OS (desired)
Experience in regulated environments (e.g., finance, healthcare, government)
Familiarity with DevOps integration in mainframe environments