Mainframe CICS System Administrator

Compu-Vision Consulting Inc.

Phoenix, AZ

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JOB DETAILS

SKILLS

Application Programming Interface (API), Automation, CPU (Central Processing Unit), Capacity Management, Capacity and Performance Management, Consulting, Continuous Deployment/Delivery, Continuous Integration, Data Sets, DevOps, Disaster Recovery, Enterprise Applications, Enterprise Protection, Hardware Evaluation, Hardware Upgrades, Hybrid Cloud, IBM CICS (Customer Information Control System), IBM Clist Programming Language, IBM DB2, IBM Job Entry Subsystem, IBM Netview, IBM Product Family, IBM Rexx Programming Language, IBM Sysplex, IBM System/Spool Display and Search Facility (SDSF), IBM TSO/ISPF, IBM z-OS Operating System, IP Multimedia System (IMS), ITIL (IT Infrastructure Library), Identify Issues, Input/Output, MIPS Processors, Mainframe Computer, Mainframe Operating System, Maintain Compliance, Memory Hardware, Messaging Middleware, Operating Systems, Performance Analysis, Performance Metrics, Process Management, RACF (Resource Access Control Facility), Regulatory Compliance, Release Management/Engineering, Root Cause Analysis, ServiceNow, Software Patches, Standard Operating Procedures (SOP), Symmetric MultiProcessing (SMP) Computing, System Migration, Systems Administration/Management, Systems Analysis, Systems Maintenance, Systems/Internals Programming, Technical Writing, Unix Operating Systems, Work From Home

LOCATION

Phoenix, AZ

POSTED

8 days ago

Job Title: Mainframe CICS System Administrator
Duration: 6 months contract to hire
Location: Phoenix, AZ (3days onsite, 2days WFH)

Overview:
The Mainframe z/OS System Programmer is responsible for the installation, customization, maintenance, and optimization of IBM z/OS operating systems and associated system software. This role ensures the stability, performance, security, and availability of mission-critical mainframe environments, supporting large-scale enterprise applications.

Responsibilities:
1. System Administration & Maintenance:

Install, configure, and maintain IBM z/OS operating systems.
Perform system upgrades, migrations (e.g., z/OS version upgrades), and apply maintenance (PTFs, APARs, RSUs).
Manage IPL processes, system initialization, and configuration (PARMLIB, PROCLIB, SYS1 datasets).
Monitor system health and performance using tools such as RMF, SMF, SDSF.

2. Subsystem Support:

Install, configure, and support key subsystems:
JES2/JES3
TSO/E, ISPF
USS (Unix System Services)
RACF (in coordination with security teams)
Work closely with DB2, CICS, IMS, MQ, and Storage teams for integration and support.

3. Performance & Capacity Management:

Analyse system performance metrics and implement tuning improvements.
Support capacity planning and resource optimization (CPU, memory, I/O).
Evaluate hardware upgrades (e.g., CPU/MIPS growth, z-series enhancements).
Problem Management & Troubleshooting:
Diagnose and resolve system-related issues, including system abends and failures.
Perform root cause analysis for outages and major incidents.
Work with IBM and vendors on problem determination and fixes.

4. Automation & Scheduling:
Develop and maintain automation using tools such as:

System REXX, CLIST
SA z/OS, NetView
Support job scheduling tools (e.g., CA7, Control-M where applicable).

5. Security & Compliance:

Support system-level security configurations aligned with RACF policies.
Ensure compliance with audit, regulatory, and enterprise security standards.
Assist in vulnerability remediation and patching activities.

6. Change & Release Management:

Execute changes through ITIL-based processes (ServiceNow or equivalent).
Prepare implementation plans, backout procedures, and validation steps.
Support weekend maintenance windows and IPL activities.

7. Documentation:

Create and maintain technical documentation, including:
System configurations
Standard Operating Procedures (SOPs)
Disaster Recovery plans

Required Qualifications:

5+ years of experience in mainframe system programming (z/OS).
Strong hands-on knowledge of z/OS, JES2/JES3, TSO/ISPF, SDSF, USS/OMVS, SMP/E.
Experience with large-scale environments (multi-LPAR, Parallel Sysplex).
Knowledge of vendor products (Broadcom, IBM, BMC).
IBM certifications (preferred but not mandatory).

Preferred Experience:

Exposure to mainframe modernization initiatives (APIs, hybrid cloud integration).
Experience with z/OSMF and modern interfaces.
Knowledge of DevOps practices on mainframe (CI/CD pipelines).
Exposure to Zowe and APIs on z/OS.

About the Company

Compu-Vision Consulting Inc.

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