Mainframe System Programmer

Mainframe System Programmer


Remote

Position Overview:


We are seeking an experienced Mainframe System Programmer responsible for the installation, configuration, maintenance, and tuning of IBM z/OS systems and associated system-level components . This role is not application development -it is focused on the core operating system , supporting the infrastructure that runs critical business workloads. The ideal candidate is hands-on with IBM mainframe architecture, system utilities, and hardware configuration, and is comfortable working in high-availability production environments.

Key Responsibilities:

• Install, configure, and maintain z/OS , z/VM , and system software components such as JES2 , RACF , VTAM , and TCP/IP .
• Perform system-level maintenance, apply PTFs/APARs via SMP/E , and handle system upgrades and IPLs.
• Configure and support system automation tools , console automation , and workload schedulers (e.g., IBM TWS, CA-7).
• Administer and troubleshoot mainframe storage systems , catalogs , DFSMS , and tape management tools.
• Conduct system performance monitoring and tuning using tools like RMF , SMF , OMEGAMON , MainView , etc.
• Manage mainframe security infrastructure (primarily RACF ), implement policies, and assist with audits/compliance.
• Provide technical support for mainframe hardware and software-related incidents; work with IBM and vendors for resolution.
• Participate in disaster recovery planning and testing .
• Document systems configurations and changes in accordance with ITIL/Change Management processes.
• Support cross-functional teams including DBAs, network engineers, and operations to ensure a stable and secure mainframe environment.

Required Skills and Experience:

• 11+ years of experience as a Mainframe System Programmer (z/OS).
• Strong hands-on expertise with z/OS system internals , SMP/E , JCL , and ISPF .
• Deep understanding of IBM mainframe hardware configuration (HCD/HCM), LPAR, IOCP/HCD, and PARMLIB.
• Experience with mainframe automation , monitoring, and scheduling tools.
• Proficient with RACF administration and overall mainframe security concepts.
• Skilled in REXX , CLISTs , and scripting for system automation.
• Familiarity with change management , problem management , and system documentation.