Mainframe Storage System administrator

Overview

Design, operate and optimize enterprise-wide z/OS mainframe storage solutions, serving as the senior technical escalation point for complex storage incidents within a production mainframe environment.

What you'll do

• Design, implement, and support enterprise-wide z/OS storage solutions, ensuring scalability, availability, and performance.
• Administer and govern DFSMS/SMS environments, including ACS routines, Storage Groups, Storage Classes, Data Classes, and Management Classes.
• Manage and optimize DASD storage infrastructure, monitor utilization trends, perform capacity planning, and support storage growth initiatives.
• Maintain VTOC, VTOCIX, and catalog environments, resolving allocation, extent, connectivity, and catalog-related issues.
• Administer DFSMShsm and DFSMSdss services, supporting backup, migration, archiving, disaster recovery, and recovery operations.
• Monitor storage subsystem performance, analyze I/O workloads, troubleshoot bottlenecks, and drive continuous service improvements.
• Ensure storage environments meet security, audit, and compliance requirements through effective access controls and governance practices.
• Lead storage-related projects including hardware refreshes, storage modernization, data center migrations, z/OS upgrades, cloud integration, and disaster recovery enhancements.
• Develop and implement automation solutions using REXX, JCL, ISPF, and vendor tools to improve operational efficiency and reduce manual effort.
• Serve as the highest level technical escalation point for complex storage incidents, conducting root cause analysis and implementing long-term solutions.
• Collaborate with infrastructure, application, security, and vendor teams to support business-critical initiatives and operational excellence.
• Mentor junior engineers, create technical documentation, and promote knowledge sharing and best practices across the storage organization.

What you'll need

• 8+ years of experience in mainframe storage administration.
• Experience with DASD and tape data storage solutions (DASD/Tape configuration and migration) for mainframes.
• Working knowledge of z/OS operating system, z/OS (MVS) fundamentals, storage fundamentals and storage devices.
• Good knowledge of TSO, ISPF, JCL, VSAM, ISMF, JES2, catalogs, datasets (PS/PDS/PDSE/GDG), REXX, SAS, SDSF and spool.
• Good knowledge and experience in MF Tape and DASD management: DFSMS, DFSMSHSM, DFSMSDSS, DFSMSDFP, DFSMSRMM, ICF Catalog, VSAM, IDCAMs, CA products (CA Disk, CA Allocate and CA-1), FDR products, OMEGAMON XE or related storage monitoring tools, ICKDSF, space abends and SMF/DCOLLECT/BVIR reports.

Nice to have

• Bachelor's degree in computer science or a related field.
• Provides technical support activities for a production mainframe environment of multiple LPARs, CECs, DASD and VTS controllers.
• Experience in storage box data migration (DASD to DASD and tape to tape) and storage replication.

Details

• Location: Bangalore, Karnataka, India.
• Work hours: candidates must work in customer work hours across US, Europe and Asia Pacific, with weekends and holidays as on-call staff.
• Hybrid-friendly work environment.