Mainframe SW Engineer
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
