
Mainframe CICS System Administrator, Phoenix AZ
Overview
You will own the CICS environment for enterprise clients, resolving incidents and preventing future failures across platforms and services. You will work with global-scale systems and modernization initiatives, collaborating with a team of mainframe specialists. This role stands out for its exposure to cutting-edge mainframe technology and the challenge of stabilizing critical production environments.
What You'll Do8
- 1Debug and resolve CICS region failures, applying fixes to restore service within 90 days.
- 2Tune CICS performance by analyzing system logs and adjusting parameters to reduce abends.
- 3Manage CICS transactions and programs, ensuring smooth operation across production regions.
- 4Implement CICS security policies using RACF to protect sensitive data and resources.
- 5Automate routine CICS tasks with REXX and Clist to cut manual effort.
- 6Support CICS modernization projects, migrating legacy transactions to new architectures.
- 7Coordinate with application teams to test and deploy CICS changes during maintenance windows.
- 8Document CICS configurations and procedures, building a knowledge base for the team.
Requirements7
- 15+ years administering CICS in z/OS environments.
- 23+ years working with CICS transaction server and CICSplex.
- 3Proficiency with CICS system definitions, JCL, and VSAM files.
- 4Experience with CICS performance tuning and problem determination tools.
- 5Knowledge of RACF security and CICS resource definitions.
- 6Ability to script with REXX or CLIST for automation.
- 7Onsite presence 3 days per week in Phoenix, AZ.
Salary Insight
Salary not disclosed in listing
Location
Required Skills
Similar open positions
Explore active roles that match your skills and interests.

Motion Recruitment Partners, LLC
VerifiedCICS System Administrator, Mainframe & Transaction Server
You will administer and maintain enterprise-scale CICS Transaction Server environments supporting mission-critical workloads. You will join a stable infrastructure operations team in Phoenix, Arizona, collaborating on performance tuning, upgrades, and incident resolution. This hybrid role offers three days onsite per week, giving you direct access to production systems and team collaboration. You will directly impact system reliability and performance for a leading enterprise organization.

Modern Agile Technologies, LLC
VerifiedMainframe z/OS System Programmer, IBM Mainframe Support
You will own the installation, customization, and maintenance of z/OS operating systems in a hybrid Phoenix environment. You will ensure stability and performance for IBM mainframe systems supporting large-scale enterprise apps. Your team handles CICS, DB2, and IMS environments. This contract-to-hire role offers direct impact on mission-critical operations.

ASCII Group LLC
VerifiedMainframe Production Support Specialist, COBOL & CICS
Own L2/L3 production support for mission-critical batch and real-time applications in Chicago. You will resolve incidents and monitor batch jobs across COBOL, JCL, DB2, CICS, and VSAM. Work on-site with a team that values direct collaboration. This role offers exposure to a large-scale mainframe environment with high transaction volumes.

Floga technologies
VerifiedMainframe Developer/Architect, Dallas TX
You will own the design and delivery of mainframe-based solutions for a long-term client engagement in Dallas, TX. You will collaborate with cross-functional teams to build high-quality applications using COBOL, JCL, and CICS. You will also modernize legacy systems by integrating DB2 databases and VSAM files. This role stands out for its long-term stability and direct impact on core banking operations.

ISite Technologies Inc
VerifiedMainframe Developer COBOL JCL CICS DB2
You will own the full lifecycle of mainframe applications built on COBOL, JCL, DB2, and CICS for business-critical processes. You will join a team of mainframe engineers supporting real-time and batch systems, working directly with business analysts to convert requirements into technical solutions. This role focuses on stability, performance tuning, and modernization within a legacy environment that runs core operations.

LANDMARKIT LLC
VerifiedMainframe Developer - COBOL AWS Certified
Design and maintain scalable enterprise solutions for large-scale data processing environments. Lead development of mission-critical applications that drive core business operations. This role offers unique exposure to hybrid cloud architectures and legacy mainframe modernization projects. The ideal candidate thrives in collaborative settings while delivering high-performance systems.