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Project description Responsible for end-to-end performance engineering, capacity planning, and system tuning across large-scale IBM z/OS Parallel Sysplex environments. This role requires expert-level technical depth in SMF-based analysis, WLM policy behavior, infrastructure measurement, and mainframe subsystem interactions. Only candidates with direct, senior-level mainframe performance engineering experience will be considered. Responsibilities Familiarity with SMF/RMF record structures Must be familiar with SAS programming and statistical data Utilize knowledge of large scale operational and system concepts Develop and maintain system performance reporting using MXG, SAS, and Splunk Monitor daily system health for areas of improvement and exceptions Deliver recommendations for enhancing performance Perform problem resolution to system health conditions Familiar with coupling facility performance and/or LPAR weights and capping Participation in a 24x7x365 oncall rotation to support performance & restoration of health Demonstrated knowledge and proficiency in the use of TSO and ISPF Familiar with Omegamon as a system performance monitor Demonstrated basic knowledge of zOS, JCL, and ability to modify jobstreams for batch Has responsibility and capability to work multi-platforms with zOS and/or zLinux Troubleshoot complex incidents and develop skills for future technologies Develop POC of new products and define center of excellence for the organization Designs and documents technical solutions required to support complex business system including general documentation for use by Computer Operations Usage of AI is required for daily support and assistance in efficient productivity Skills Must have 10+ years of mainframe systems experience with proficiency in performance management for large, multi-processor, multi-LPAR, Parallel Sysplex environments. 2 years experience working with SAS programming Familiarity with WLM (workload manager), MXG, & ThruPut Manager (batch priority software) Knowledge of z/OS, z/VM, z/Linux, CICS, DB2, Strobe, & monitoring systems (e.g. Omegamon) Nice to have Certifications Other Languages English: C2 Proficient Seniority Lead
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