(AZ) Mainframe z/OS Systems Programmer

We are seeking a highly skilled Mainframe z/OS System Programmer to support and manage enterprise IBM z/OS environments. This role focuses on core system programming, platform stability, and performance optimization across mission-critical mainframe systems. The ideal candidate will have deep hands-on experience with z/OS internals and a strong understanding of system-level operations, along with exposure to modernization initiatives and evolving mainframe technologies. What You’ll Do:

• Install, configure, and maintain z/OS operating system environments Perform system upgrades, patching (PTFs), and maintenance using SMP/E Manage and support core system components including: JES2 PARMLIB / PROCLIB configurations System initialization and IPL processes
• Support and manage Parallel Sysplex environments and related components
• Monitor and optimize system performance using tools such as RMF, SMF, or equivalent
• Perform capacity planning, system tuning, and resource management
• Support hardware and platform migrations, including LPAR configurations and system transitions
• Troubleshoot and resolve complex system-level issues, abends, and performance bottlenecks Collaborate with subsystem teams (DB2, IMS, CICS, MQ) to ensure system integration and stability
• Support disaster recovery planning, testing, and high availability initiatives Maintain system documentation, procedures, and configuration standards Participate in modernization initiatives, including automation, monitoring, and integration with newer technologies
• What Makes This Role a Great Fit You enjoy working at the core system and platform level You are highly hands-on with mainframe infrastructure and system internals You thrive in environments where stability, performance, and reliability are critical You are interested in evolving mainframe environments through automation and modernization, Job Description The Financial Information Services Agency and the Office of Payroll Administration (FISA-OPA) has a vacancy for a Mainframe Programmer Analyst. FISA maintains a…
• 19 days ago +

Required Skills : 7 years of experience working in IBM mainframe (z/OS) environments Strong hands-on experience with: z/OS system programming System installation, configuration, and maintenance SMP/E, PTFs, and system upgrades JES2 and system-level components Experience working in Parallel Sysplex environments Experience with performance monitoring and tuning tools (RMF, SMF, etc.) Strong understanding of: z/OS architecture and internals JCL and system utilities Experience supporting high-availability, enterprise production environments Preferred Qualifications Experience with hardware/platform migrations and system upgrades Exposure to automation and scripting (REXX, Python, Shell) Experience with monitoring and observability tools Familiarity with DB2, IMS, CICS, or MQ integration Exposure to mainframe modernization efforts, such as: API enablement (e.g., z/OS Connect) DevOps or CI/CD pipeline integration Hybrid cloud environments Experience working in large-scale, enterprise or financial services environments

• $75,000-125,000 per year