Mainframe Storage Specialist

Mainframe Storage Specialist

Short summary: Experienced Mainframe Storage Engineer/Architect to manage and maintain z/OS storage subsystems and execute product migrations from CA tools to native IBM software and storage solutions.

Practical: Start date: 09-09-2026 | End date/period: 08-09-2027 | Hours per week: 40,00 | Contract type: Secondment / Interim | Rate: €70 - € 80 (per hour, depending on experience)

What will you do

Our client is executing a large-scale mainframe infrastructure modernization and storage transformation program. The project focuses on managing enterprise-level storage environments, ensuring business continuity, and migrating legacy third-party management tools to IBM native toolsets.

Role focus Mainframe Storage Administration, z/OS, CA-to-IBM tool migrations, capacity and performance management, replication, and disaster recovery.

Key responsibilities

• Manage and maintain mainframe storage subsystems, including DASD, tape, and virtual tape libraries (VTL).

• Execute product migrations from CA software/tools to IBM native tools (such as CA Allocate to IBM TAAM/DFSMS, CA-1 to IBM DFSMSrmm, and CA Disk to DFSMShsm).

• Manage storage replication, sync confirmations, stop/suspend replications, and personality swap activities using DELL Storage PMAX, VTL, DLM, and Data Domain (DD).

• Perform storage allocation, dataset management, volume configuration, and optimal space lifecycle management.

• Monitor storage utilization, forecast capacity demands, optimize I/O performance, and resolve storage bottlenecks.

• Implement backup, recovery, and DR drill processes to ensure data integrity and meet RPO/RTO objectives.

• Provide L2/L3 support for storage-related incidents, perform root cause analysis, and execute changes via standard CAB processes.

• Develop automation scripts for repetitive storage operations to improve operational efficiency.

Environment & technologies

• Location: Rijswijk (Zuid-Holland)

• z/OS Storage Subsystems (DASD, Tape, VTL)

• IBM DFSMS, DFSMSdss, DFSMShsm, DFSMSrmm, TAAM, IDCAMS

• CA Tools (CA Allocate, CA-1, CA Disk)

• Dell Storage (PowerMax / PMAX, DLM, Data Domain)

• JCL & Batch Processing

• Disaster Recovery & Storage Replication

Duration & timing The engagement is planned for an initial period of 12 months (40 hours per week) with the possibility of extension.