Principal Systems Engineer – Mainframe Storage, zOS
Job in
Lakewood, Jefferson County, Colorado, USA
Listed on 2026-07-13
Listing for:
Jobtailor
Full Time
position Listed on 2026-07-13
Job specializations:
-
IT/Tech
Disaster Recovery IT, IT Infrastructure, Systems Engineer, Systems Administrator
Job Description & How to Apply Below
Responsibilities
- Administer and support IBM z/OS storage environments, including DASD and tape.
- Design, implement, and maintain DFSMS constructs such as SMS, DFHSM, and ICF catalogs.
- Monitor storage utilization, performance, and growth trends, and perform proactive capacity planning.
- Manage disk and tape allocation, space recovery, dataset placement, and pool optimization.
- Support storage replication, backup, and disaster recovery solutions, including GDPS, SRDF, or equivalent technologies.
- Perform incident response, root cause analysis, and corrective actions for storage-related outages or performance issues.
- Participate in planned maintenance, hardware refreshes, microcode upgrades, and z/OS releases.
- Develop and maintain automation, scripts, and reporting for storage operations and monitoring.
- Collaborate with application teams, mainframe systems programmers, and infrastructure partners to meet service level objectives.
- Produce clear documentation, operational procedures, and leadership‑ready status or incident summaries.
- Participate in on‑call rotations and provide after‑hours support as required.
- Bachelor’s degree, or equivalent work experience
- At least 7 years of experience within a total information technology (IT) environment
- At least 7 years of experience with the design, development and support of technology infrastructure
- Strong expertise in IBM z/OS storage management, including DASD, tape systems, and enterprise storage architectures
- Hands‑on experience with DFSMS suite (SMS, DFHSM, ICF catalogs) for storage design, automation, and lifecycle management
- Proven ability in capacity planning, performance tuning, and storage optimization across large‑scale mainframe environments
- Experience managing disk/tape allocation, space management, dataset placement, and storage pool optimization
- Knowledge of data protection and resiliency solutions, including GDPS, SRDF, replication, backup, and disaster recovery strategies
- Strong troubleshooting skills with incident management, root cause analysis, and production support for storage and performance issues
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