Mainframe Engineer

Required Technical Skills In-depth hands-on experience with IBM z/OS installation, configuration, maintenance, and upgrades. Strong experience with IBM Z mainframe hardware, CPC, LPAR, HMC/SE, IOCDS, IODF, FICON, OSA, and Coupling Facility. Expertise in installing, configuring, and supporting ISV products from Broadcom/CA, BMC, IBM, and Rocket Software. Experience with IBM PTFs, APARs, SMP/E, and system maintenance. Strong knowledge of z/OS performance monitoring using RMF, SMF, TMON, and SAS. Experience with WLM, JES, SYSRES, and critical system datasets. Familiarity with OPS/MVS, System Automation, Automation Point, and ZEKE Scheduler. Experience with GDPS, disaster recovery, IPL testing, and replication technologies. Roles &

Manage IBM Z hardware configurations, LPARs, HMC, IOCDS/IODF, and connectivity. Install, upgrade, and maintain third-party ISV products. Apply PTFs and APARs and troubleshoot complex system issues. Monitor and optimize z/OS performance, resource utilization, and WLM. Perform system diagnostics using logs, dumps, SYSOUT, RMF, and SMF. Support disaster recovery planning, testing, and execution. Collaborate with IBM and ISV vendors for technical support and issue resolution. Provide 24/7 production support through an on-call rotation.