z/OS Mainframe Storage Engineer

Salary: £63,000 - 103,000 per year

Requirements

• Typically 8 to 15+ years of experience in Mainframe Infrastructure and z/OS Storage Administration.
• Strong hands-on experience supporting IBM z/OS storage environments in large-scale enterprise organizations.
• Experience with IBM DS8000 series storage, virtual tape systems, disaster recovery solutions, and storage management products.
• Proven experience managing storage capacity, backup and recovery, replication technologies, and enterprise storage operations.
• Experience working in Banking, Financial Services, Insurance, or other highly regulated, mission-critical environments preferred.
• Strong expertise in IBM DS8000 Series Storage (DS8870, DS8K Family), DSCLI, GDPS PPRC Metro Mirror, DFHSM, DFDSS, ICKDSF, SMS, RMM Customization, and z/OS IODF Administration.
• Experience installing and upgrading IBM storage hardware and software.
• Strong understanding of mainframe disk storage management, storage provisioning, capacity planning, backup & recovery, and disaster recovery.
• Experience supporting TS7720 virtual tape systems, storage grid architectures, and PPRC replication environments.
• Experience with EMC DLm virtual tape systems including installation, upgrade, and configuration.
• Experience with Broadcom/Brocade storage networking solutions and FICON connectivity.
• Strong knowledge of z/OS, JCL, job scheduling, and mainframe storage infrastructure.
• Experience utilizing SMP/E and z/OSMF for software maintenance and deployment.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent verbal and written communication skills.
• Experience with CA-1, CA Vantage, CA Disk, TDMF/TDMFS, NetView, System Automation (SA z/OS), and CA OPS/MVS preferred.
• Knowledge of storage performance monitoring and reporting tools preferred.
• Experience with enterprise-scale storage migration projects preferred.
• Familiarity with storage automation and infrastructure modernization initiatives preferred.
• Understanding of IBM Parallel Sysplex and GDPS high availability architectures preferred.
• Experience supporting global data centers and geographically dispersed environments preferred.
• Exposure to audit, compliance, and regulatory requirements within financial services organizations preferred.
• IBM Storage or IBM Z certifications preferred.

Responsibilities

• Manage all aspects of mainframe disk and storage administration, including installation, removal, upgrades, updates, provisioning, restoration, and ongoing support.
• Perform daily operational activities, including health checks, incident management, monitoring, and issue resolution.
• Plan and implement storage capacity expansions and infrastructure changes.
• Configure, administer, and maintain storage resources supporting databases, VSAM files, work datasets, and sort spaces.
• Administer and support storage management products including CA Disk and related utilities.
• Install, test, evaluate, and maintain storage hardware and software solutions.
• Perform z/OS hardware planning activities including IODF maintenance, LPAR configuration, HMC administration, and associated system changes.
• Administer backup, recovery, archival, and disaster recovery solutions.
• Install, maintain, and upgrade storage-related products using SMP/E and z/OSMF.
• Manage storage volume allocation, capacity planning, and utilization reporting.
• Support and participate in disaster recovery testing and recovery exercises.
• Perform root cause analysis for storage-related incidents and implement preventive actions.
• Collaborate with systems programming, network, database, and application teams to ensure seamless service delivery.
• Utilize automation tools such as NetView, System Automation (SA), CA OPS/MVS, and similar products to improve operational efficiency.
• Automate repetitive storage administration and monitoring tasks.
• Design, implement, and support IBM zSeries storage architectures and solutions.
• Ensure compliance with organizational security, governance, and operational standards.
• Maintain technical documentation, operational procedures, and support runbooks.
• Proactively monitor storage utilization, performance, and health across all environments.
• Manage storage growth and perform long-term capacity planning activities.
• Participate in software installations, maintenance activities, infrastructure upgrades, and storage migrations.
• Support critical incident resolution and contribute to root cause analysis initiatives.
• Participate in disaster recovery planning, testing, and execution activities.
• Provide after-hours and weekend support for maintenance windows and production incidents as required.
• Drive operational excellence through automation, standardization, and continuous improvement.
• Collaborate with global infrastructure teams, vendors, and business stakeholders to deliver reliable and scalable storage solutions.
• Maintain accurate documentation, implementation plans, and operational procedures.
• Demonstrate strong ownership, accountability, and technical leadership in managing mission-critical storage services.

Technologies

• AI
• Cloud
• Hardware
• IBM
• Incident Management
• Support
• JCL
• Network
• REST
• Security
• VSAM
• Windows
• IBM Mainframe

More

We are NTT DATA, a $30 billion business and technology services leader serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the worlds leading AI and digital infrastructure providers, with capabilities in enterprise-scale AI, cloud, security, connectivity, data centers, and application services. We operate globally with experts in more than 50 countries and support clients through innovation centers and partner ecosystems. This role is for our growing UK and rest of Europe team, with fully remote working possible and occasional Sheffield preference. We offer a comprehensive, locally competitive benefits package and prioritize health and wellbeing. We are a Global Top Employer and a part of NTT Group, which invests over $3 billion each year in R&D. We hire locally whenever possible and may require in-office attendance for meetings or events depending on business needs.

last updated 36 week of 2026