> Markdown version of [/jobs/ext/3533747-mainframe-cics-system-administrator](https://www.wearedevelopers.com/jobs/ext/3533747-mainframe-cics-system-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe CICS System Administrator - **Company:** Manpower - **Location:** Charlotte, NC, United States - **Contract:** Permanent contract - **Skills:** Customer Information Control System (CICS), Mainframes, Transaction Processing (Computing), Omegamon - **Published:** October 1, 2026 - **Apply:** https://www.beyondcharlotte.com/job.asp?id=3413455047&tx=FR3734FFP&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * Hands-on experience administering CICS Transaction Server (CICS TS), including installation, upgrades, and ongoing maintenance. * Ability to apply patches (PTFs), manage version upgrades, and execute regression validation with accuracy and discipline. * Experience configuring and supporting CICS regions across production, test, and DR environments. * Strong monitoring and troubleshooting skills using tools such as OMEGAMON / MainView / TMON, with a focus on transaction response times and system health. * Proven capability to analyze performance bottlenecks and perform tuning to improve overall system efficiency. ## Description * Install, upgrade, and maintain CICS Transaction Server (CICS TS) environments to support ongoing business operations. * Apply patches (PTFs), manage version upgrades, and perform regression validation to reduce risk during changes. * Configure and maintain CICS regions (production, test, DR), ensuring each environment is ready for its intended workload. * Maintain startup parameters and system initialization tables (DFHSIT) to support consistent system initialization and behavior. * Monitor transaction performance and system health using tools such as OMEGAMON / MainView / TMON, then analyze and tune for improved response times, CPU utilization, and storage usage.