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About the role
Required Qualifications 10+ years of hands-on Mainframe Storage Administration experience Strong knowledge of z/OS fundamentals, storage architecture, and devices Experience with DASD and tape configuration, management, and data migration (DASDDASD, tapetape) Proficiency with DFSMS suite: DFSMSdfp, DFSMShsm (HSM), DFSMSdss, DFSMSrmm ICF Catalog administration; VSAM and IDCAMS utilities TSO/ISPF, JCL, JES2, SDSF; dataset types PS/PDS/PDSE/GDG; ISMF Automation/scripting with REXX; reporting/analytics with SAS Experience with storage monitoring tools such as OMEGAMON XE (or equivalents) Familiarity with CA storage products: CA Disk, CA Allocate, CA-1 (or equivalents like DFSMSrmm/TLMS) Experience with FDR products for backup/restore and migrations Use of ICKDSF for device/VTOC initialization and maintenance Ability to analyze and remediate space abends (SB37/SE37/SD37) Experience producing and interpreting SMF, Dcollect, and BVIR reports Operational support of multi-LPAR, CECs, DASD, and VTS controllers Willingness to work 17:3002:20 IST shift with weekend/holiday on-call as needed Bachelor’s degree in Computer Science or related field (preferred) Responsibilities Administer and optimize mainframe DASD and tape environments on z/OS, ensuring availability, performance, and security compliance. Manage daily storage operations: allocations, migrations, recalls, backups, and recoveries using DFSMS/HSM/DSS and vendor tools. Oversee ticket queues, prioritize assignments, and collaborate directly with technicians and cross-functional teams to resolve incidents/problems. Execute storage box data migrations and replication; plan and validate cutovers while maintaining catalog/dataset integrity. Monitor storage health and capacity (e.g., OMEGAMON), address space abends, and produce SMF/Dcollect/BVIR-based reports. Administer ICF catalogs, VSAM datasets, and JES2/SDSF spool; use ISMF to define and maintain data/storage/management classes. Automate routine tasks using REXX and generate operational/management reporting via SAS. Recommend modernization options, identify optimization opportunities, and maintain strong stakeholder relationships. Provide production support for multiple LPARs, CECs, DASD, and VTS controllers, including on-call coverage during customer hours.
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