Mainframe Support jobs in Hertfordshire

Req ID: 384918

Competitive salary | UK/Europe: Fully remote possible; occasionally Sheffield preferred

At NTT DATA, we know that with the right people on board, anything is possible. The quality, integrity, and commitment of our employees are key factors in our company’s growth, market presence and our ability to help our clients stay a step ahead of the competition. By hiring the best people and helping them grow both professionally and personally, we ensure a bright future for NTT DATA and for the people who work here.

NTT DATA is currently looking for a z/OS Mainframe Storage Engineer remote for our growing team in the UK and rest of Europe.

About the role

We are seeking a highly skilled z/OS Mainframe Storage Engineer to manage, support, and optimize enterprise mainframe storage infrastructure. This role is responsible for the installation, configuration, administration, maintenance, monitoring, and modernization of storage platforms supporting IBM z/OS environments.

The successful candidate will oversee all aspects of storage management, including disk and tape storage, backup and recovery, disaster recovery, storage capacity planning, replication technologies, and storage software lifecycle management. The role also involves infrastructure design, hardware upgrades, automation initiatives, and proactive monitoring to ensure maximum performance, availability, and resilience of business-critical systems.

The ideal candidate will possess deep expertise in IBM mainframe storage technologies, strong problem-solving skills, and the ability to collaborate across infrastructure, operations, and application support teams within a complex enterprise environment.

In this role, You will

• 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.

Required Qualifications

• 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
• 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
• Disaster Recovery
• Experience supporting:
• TS7720 Virtual Tape Systems
• Storage Grid Architectures
• 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
• 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.

Desired Qualifications

• Experience with:
• CA-1
• CA Vantage
• CA Disk
• TDMF/TDMFS
• NetView
• System Automation (SA z/OS)
• CA OPS/MVS
• Knowledge of storage performance monitoring and reporting tools.
• Experience with enterprise-scale storage migration projects.
• Familiarity with storage automation and infrastructure modernization initiatives.
• Understanding of IBM Parallel Sysplex and GDPS high availability architectures.
• Experience supporting global data centers and geographically dispersed environments.
• Exposure to audit, compliance, and regulatory requirements within financial services organizations.
• IBM Storage or IBM Z certifications preferred.

Job Expectations

• Ensure high availability, resilience, and optimal performance of enterprise storage infrastructure.
• Proactively monitor storage utilization, performance, and health across all environments.
• Maintain compliance with security, governance, audit, and operational standards.
• 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.

Primary Skillset

• IBM DS8000 (DS8K / DS8870) Storage Administration
• DSCLI
• GDPS
• PPRC Metro Mirror
• DFHSM
• DFDSS
• ICKDSF
• SMS
• RMM Customization
• TS7720 Virtual Tape Systems
• EMC DLm Virtual Tape
• zOS IODF Administration
• HMC LPAR Management
• SMP/E
• z/OSMF
• Mainframe Backup Recovery
• Disaster Recovery Planning Execution
• Storage Capacity Management
• FICON Storage Networking

Benefits

Our people are the most critical component of our long-term success and their health and wellbeing are our priority. You will enjoy a comprehensive, locally competitive benefits package.

About NTT DATA

NTT DATA is 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 world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in RD.

Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us.

NTT DATA endeavors to make https://us.nttdata.com accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at https://us.nttdata.com/en/contact-us. This contact information is for accommodation requests only and cannot be used to inquire about the status of applications. NTT DATA is an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. For our EEO Policy Statement, please click here. If you'd like more information on your EEO rights under the law, please click here. For Pay Transparency information, please click here.

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