Mainframe Z/OS System Programmer

🚨 Hiring: Mainframe z/OS System Programmer

📍 Location: Phoenix, AZ (Onsite – 3 days/week)
📩 Send resumes to:

We are seeking an experienced Mainframe z/OS System Programmer to manage and optimize enterprise IBM z/OS environments. This role focuses on system administration, performance tuning, subsystem support, automation, security, and high availability for mission-critical mainframe platforms.

🔹 Required Skills
• Strong experience with IBM z/OS System Programming
• Hands-on experience installing, configuring, and maintaining IBM z/OS operating systems
• Expertise in z/OS upgrades, migrations, PTFs, APARs, and RSUs
• Strong knowledge of IPL processes, PARMLIB, PROCLIB, and SYS1 datasets
• Experience with performance monitoring tools:

• RMF
• SMF
• SDSF
  • Hands-on experience supporting:
• JES2/JES3
• TSO/E
• ISPF
• USS (Unix System Services)
• RACF
  • Experience working with DB2, CICS, IMS, MQ, and Storage teams
  • Knowledge of System REXX, CLIST, SA z/OS, NetView, and job schedulers such as CA7 or Control-M
  • Strong understanding of ITIL processes and ServiceNow (or similar)

🔹 Key Responsibilities
• Install, configure, upgrade, and maintain IBM z/OS operating systems
• Manage system initialization, IPL activities, and configuration datasets
• Monitor system health, analyze performance, and implement tuning improvements
• Support capacity planning and optimize CPU, memory, and I/O utilization
• Troubleshoot system issues, perform root cause analysis, and coordinate with IBM for issue resolution
• Develop and maintain automation scripts using REXX, CLIST, SA z/OS, and NetView
• Support system security, RACF policies, compliance, and vulnerability remediation
• Execute changes through ITIL-based change management, including implementation and backout planning
• Maintain technical documentation, SOPs, and Disaster Recovery procedures

🔹 Additional Information
• Candidates must be able to work onsite in Phoenix, AZ (3 days/week)
• Candidates willing to relocate will also be considered

📩 Interested candidates can share resumes at: