Mainframe Z/OS system Admin
Listed on 2026-06-07
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IT/Tech
Systems Engineer, IT Support
Fully understand z/OS services structure, JES concepts, parallel sysplex/GDPS, catalog management.
PARMLIB configuration and JES customization.
Knowledge of JCL, REXX, CLIST and Modify Assembler EXITS.
Knowledge of z/OS HW, LPAR, HMC.
IMS/MQ Series (Web Sphere MQ).
RACF experience.
Knowledge of installing and supporting a few commonly used ISV products like CA-View, Tape management tool (CA-1), Scheduling tools (BMC Incontrol, CA-7), etc.
Knowledge of USS management.
Capable of installing regular maintenance (RSUs).
Supporting any hardware or software upgrade in the environment.
Capable of Installing/upgrading CICS and related products on a mainframe.
Maintain reliability, availability of CICS systems software.
Good knowledge in usage of transactions like CEMT, CEDA, etc.
Good Knowledge of SMP/E, SQL, DB2 online and offline utilities, ZPARMS, DB2 logs and BSDS, DB2 Commands, DDF, etc.
Install and use performance monitoring tools and products (like SAS, MXG, CA-MICS, Strobe and the Omegamon products).
Expertise in tuning and debugging performance problems for z/OS systems including application workloads.
Perform problem diagnostics and resolution. Monitor system performance and tune when required.
Well versed in storage capacity planning and configuration and should have good familiarity with typical z/OS application performance analysis.
Capable of z/OS Performance Analysis using various tools such as IBM's RMF, SMF and subsystem analysis tools.
Capable of Installing, Customizing and maintaining IBM and other ISV products related to Automations.
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