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Job Summary:We are seeking a skilled Mainframe Storage Administrator with proven experience in enterprise storage management, specifically supporting IBM Z mainframe environments. The ideal candidate will have deep knowledge of inter-site replication using GDPS (Geographically Dispersed Parallel Sysplex) and Copy Services Manager (CSM). You will play a key role in ensuring high availability, disaster recovery readiness, and performance optimization of mainframe storage systems across multiple data centers.Key Responsibilities:Administer and support enterprise mainframe storage systems (IBM DS8000 series or equivalent).Manage and maintain GDPS-based inter-site replication to ensure data integrity and seamless disaster recovery capabilities.Configure and manage IBM Copy Services Manager (CSM) for advanced storage automation, remote mirroring, and consistency group operations.Perform day-to-day storage operations, including provisioning, allocation, troubleshooting, and performance tuning.Collaborate with z/OS Systems Programmers, DBAs, and Application Teams to support complex system upgrades, migrations, and deployments.Monitor and report on storage usage and trends to ensure optimal capacity planning and resource utilization.Participate in business continuity and disaster recovery testing, audits, and compliance activities.Document storage configurations, procedures, and operational runbooks in accordance with organizational standards.Required Qualifications:7+ years of experience in mainframe storage administration.Strong hands-on experience with GDPS (HyperSwap, Metro Mirror, Global Mirror, XRC) in a production environment.Expertise with IBM Copy Services Manager (CSM) for managing data replication and consistency across storage systems.In-depth knowledge of IBM DS8000, FICON, z/OS, and associated storage management tools (DFSMS, TSO/ISPF, etc.).Experience in planning and executing Disaster Recovery (DR) scenarios involving replication technologies.Familiarity with performance monitoring tools (OMEGAMON, RMF, etc.) and storage-related SMF records.Strong analytical and troubleshooting skills.Preferred Qualifications:Working knowledge of z/VM, zLinux, or z/OSMF.Experience with automation scripting (REXX, JCL, or similar).Previous experience in regulated industries (e.g., banking, insurance, government).IBM or vendor-specific certifications in mainframe storage or GDPS technologies.Why Join Us?