z/OS Systems Programmer (Part-Time or Full-Time)

Job TitleMaintain, upgrade, and support IBM z/OS operating systems across complex environments. Troubleshoot and resolve system-level issues to ensure stability, performance, and uptime. Install and configure IBM and ISV software using standard tooling and workflows. Educate and assist users and team members on z/OS capabilities and best practices. Provide documentation, technical guidance, and support across the software lifecycle. Participate in scheduled maintenance windows, including occasional off-hours or weekends. Work independently and collaboratively within a small team of senior technical professionals. Assume additional responsibilities as assigned.Technical Requirements (Core): Extensive hands-on z/OS systems programming experience (not operations and not application development). Catalog management, ISPF/SDSF, and z/FS. Unix System Services (USS). JES2 and/or JES3; familiarity with SYS1.PARMLIB and SYS1.PROCLIB. Configuration of couple data sets. RACF administration, including user IDs, groups, certificates, resources, and key rings. IBM software installation via ServerPac, z/OSMF, and CBPDO. DFSMS, DFHSM, DFDSS, DFRMM, System Logger, and XCF. DASD architecture, FICON/ESCON, cryptographic coprocessors, and virtual tape libraries (VTLs). Proven ability to own z/OS tasks end-to-end with minimal oversight.Preferred Skills: VTAM, TCP/IP, and OSA. z/VM systems programming. Linux on z Systems and zCX (Container Extensions). DS8000, FlashCopy, and tape libraries. DFSMS Client routine and construct management.Behavioral and Functional Skills: Strong problem solving, debugging, and root-cause analysis skills. Clear written and verbal communication with mentoring abilities. Ability to work independently and within a collaborative, senior team environment. Documentation-driven approach with attention to quality and compliance.Education and Experience: Bachelor's degree preferred or equivalent experience. Minimum 5–7 years of direct z/OS systems programming experience.