Mainframe Engineer

Posted 8 days ago

techvilla solutionsMableton (GA)

Computer Systems Engineers/Architects Computer Systems Design Services

SENIORITY

Senior

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About the role

Job Summary: Seeking an experienced Mainframe Engineer / z/OS Systems Programmer with strong expertise in IBM Z hardware, z/OS administration, system upgrades, ISV products, performance tuning, automation, and disaster recovery. Experience supporting large enterprise or regulated environments is preferred.

Responsibilities: Plan and execute z/OS upgrades, maintenance, and migrations.

Install, configure, upgrade, and troubleshoot ISV and system software. Manage HMC, LPAR, I/O, HCD/IOCP, and WLM configurations. Monitor and tune system performance and resource utilization. Maintain critical datasets including SYSRES, page, and SMF datasets. Diagnose and resolve complex z/OS, JES, workload, and ISV issues. Support automation, monitoring, vendor escalations, and enterprise operations. Participate in DR planning, GDPS activities, IPL testing, and recovery events. Provide 24x7 production support as part of an on-call rotation.

Required Skills: Strong hands-on experience with z/OS installation, configuration, maintenance, upgrades, and migrations. Experience with IBM PTFs, APARs, SMP/E, IPLs, and system maintenance. Expertise with IBM Z hardware, including CPC, LPAR, HMC/SE, HCD/IOCP, IOCDS/IODF, FICON, OSA, and Coupling Facility. Experience with WLM, JES2, RMF, SMF, TMON, and SAS. Installation and support of Broadcom/CA, BMC, IBM, and Rocket Software products. Knowledge of OPS/MVS, System Automation, Automation Point, and ZEKE Scheduler. Experience with GDPS, disaster recovery, replication, and IPL/DR testing. Strong troubleshooting skills using system logs, SYSOUT, dumps, and diagnostic data. Experience supporting 24x7 production environments and on-call rotations.

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