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Manager Mainframe Production Control Jobs in Arizona

We are seeking a detail-oriented and organized Production Control Assistant to join our team. The ... Inventory Management: Monitor inventory levels of raw materials and finished goods, and coordinate ...

... group management · Experience administering dataset and subsystem security · Experience ... OS security architecture, access control models, and compliance practices · Excellent ...

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Mainframe z/OS System Programmer

Modern Agile Technologies, LLC

Phoenix, AZ • On-site

$54.50 - $69.50/hr

Other

Posted yesterday

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Job description

Hiring,

Greetings from Modern Agile Technologies.

Position: Mainframe z/OS System Programmer

Location: Phoenix, AZ (Hybrid)

Type:        Contract to Hire

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.

* 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.

 

Responsibilities:

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.

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.

Performance & Capacity Management:

  • Analyze 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.

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).

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.

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.

Documentation:

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