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# Mainframe Administrator

- **Company:** Pomeroy Assoc., L.P.
- **Location:** Chandler, AZ, United States
- **Salary:** $135,200.0 - $176,800.0
- **Contract:** Permanent contract
- **Skills:** Customer Information Control System (CICS), Mainframes, Performance Tuning, Management of Software Versions, Performance Monitor, Omegamon
- **Published:** June 24, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=b619609246fa7d73

## About the Role

Do you have experience in Server updates?

## Description

As a Mainframe CICS System Administrator, you'll solve complex problems and identify potential future issues across the spectrum of platforms and services. You'll be at the forefront of new technology and modernization, working with some of our biggest clients - which means some of the biggest in the world.

 * This role requires employees to live in or around the Phoenix, AZ area. You will be responsible to be onsite 3 days a week. We will consider candidates who are willing to relocate to the area at their own expense.

CICS Administration & Maintenance:

 * Install, upgrade, and maintain CICS Transaction Server (CICS TS) environments
 * Apply patches (PTFs), manage version upgrades, and perform regression validation
 * Configure and maintain CICS regions (production, test, DR)
 * Maintain startup parameters and system initialization tables (DFHSIT)

Performance Monitoring & Tuning:

 * Monitor transaction performance and system health using tools such as: OMEGAMON / MainView / TMON
 * Analyze: Transaction response times, CPU utilization, Storage usage
 * Perform tuning to eliminate bottlenecks


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