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Mainframe CICS System Administrator

Compu-Vision Consulting Inc.
  • Phoenix, AZ
  • $60–$65 Per Hour
  • Quick Apply
30+ days ago

Job Description

Job Title: Mainframe ZOS System Programmer 
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.

Numbers & Facts

LocationPhoenix, AZ
Salary$60–$65 Per Hour

Skills

  • Application Programming Interface (API)unmatched
  • Automationunmatched
  • CPU (Central Processing Unit)unmatched
  • Capacity Managementunmatched
  • Capacity and Performance Managementunmatched
  • Continuous Deployment/Deliveryunmatched
  • Continuous Integrationunmatched
  • Data Setsunmatched
  • DevOpsunmatched
  • Disaster Recoveryunmatched
  • Enterprise Applicationsunmatched
  • Enterprise Protectionunmatched
  • Hardware Evaluationunmatched
  • Hardware Upgradesunmatched
  • Hybrid Cloudunmatched
  • IBM CICS (Customer Information Control System)unmatched
  • IBM Clist Programming Languageunmatched
  • IBM DB2unmatched
  • IBM Job Entry Subsystemunmatched
  • IBM Netviewunmatched
  • IBM Product Familyunmatched
  • IBM Rexx Programming Languageunmatched
  • IBM Sysplexunmatched
  • IBM System/Spool Display and Search Facility (SDSF)unmatched
  • IBM TSO/ISPFunmatched
  • IBM z-OS Operating Systemunmatched
  • IP Multimedia System (IMS)unmatched
  • ITIL (IT Infrastructure Library)unmatched
  • Identify Issuesunmatched
  • Input/Outputunmatched
  • MIPS Processorsunmatched
  • Mainframe Computerunmatched
  • Mainframe Operating Systemunmatched
  • Maintain Complianceunmatched
  • Memory Hardwareunmatched
  • Messaging Middlewareunmatched
  • Operating Systemsunmatched
  • Performance Analysisunmatched
  • Performance Metricsunmatched
  • Process Managementunmatched
  • RACF (Resource Access Control Facility)unmatched
  • Regulatory Complianceunmatched
  • Release Management/Engineeringunmatched
  • Root Cause Analysisunmatched
  • ServiceNowunmatched
  • Software Patchesunmatched
  • Standard Operating Procedures (SOP)unmatched
  • Symmetric MultiProcessing (SMP) Computingunmatched
  • System Migrationunmatched
  • Systems Administration/Managementunmatched
  • Systems Analysisunmatched
  • Systems Maintenanceunmatched
  • Systems/Internals Programmingunmatched
  • Technical Writingunmatched
  • Unix Operating Systemsunmatched
  • Work From Homeunmatched

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