Job Title: Mainframe z/OS Storage Specialist
The information below covers the role requirements, expected candidate experience, and accompanying qualifications.
Job Location: Sheffield x3 days in officeContract: 6 months with extensionJob DescriptionThis role focuses on designing, configuring, and supporting mainframe storage solutions within complex z/OS environments. You will act as a subject matter expert on storage hardware and software, virtual tape technology, data replication, disaster recovery, and catalogue management, ensuring secure, resilient, and efficient data storage across the organisation.ResponsibilitiesDesign robust and scalable mainframe storage solutions that meet performance, availability, and resilience requirements.Configure, maintain, and support IBM storage controllers, including both hardware and software components.Manage and optimise mainframe storage within z/OS, applying best practices in Mainframe Storage Management.Implement, configure, and support IBM data replication technologies, including PPRC, to enable effective disaster recovery strategies.Configure and support Dell Disk Library for Mainframe virtual tape technology, ensuring reliable backup and recovery processes.Administer and manage ICF catalogues, ensuring accurate, consistent, and efficient data and dataset management.Configure and support TDMF to facilitate data migration and movement across storage environments.Use CA Disk utilities to manage, maintain, and optimise mainframe storage resources and datasets.Write, review, and maintain JCL to support storage operations, batch processing, and automation of routine tasks.Monitor, manage, and troubleshoot FICON and related network components to ensure stable and performant connectivity for storage systems.Collaborate with infrastructure, operations, and application teams to plan storage changes, migrations, and capacity management.Contribute to disaster recovery planning and testing, ensuring storage components and replication processes operate as designed.Produce and maintain technical documentation for storage configurations, standards, and procedures.Provide expert technical support and guidance on storage-related incidents, problems, and service requests.Essential SkillsComprehensive understanding of Mainframe Storage Management principles.Extensive knowledge of designing storage solutions and configuring storage hardware.Strong, practical experience with z/OS and mainframe operating systems.Full competence in the configuration and support of IBM storage controllers, including hardware and software.Comprehensive understanding of IBM data replication technologies, including PPRC, for disaster recovery.Full competence in configuring and supporting Dell Disk Library for Mainframe virtual tape technology.Comprehensive understanding of ICF catalogue structure, management, and administration.Competence in the configuration and support of TDMF for data migration.Full competence in the use of CA Disk utilities for mainframe storage management.Competence in writing and maintaining JCL for mainframe operations.Extensive understanding of FICON and network management in relation to mainframe storage.Strong analytical and problem-solving skills in complex mainframe environments.Ability to work independently and remotely while collaborating effectively with distributed teams.RMM, AAM and Omegamon ideal but not a must haveAdditional Skills & Qualificationsexperience in disaster recovery planning and testing for mainframe storage environments.Background in capacity planning and performance optimisation for mainframe storage.Familiarity with broader mainframe infrastructure and operations best practices.Ability to produce clear technical documentation and procedures.Strong communication skills for working with technical and non-technical stakeholders.No formal qualification requirements specified; relevant experience and expertise are highly valued.Why Work Here?You will join a technology-focused environment that values deep technical expertise and gives you the autonomy to shape storage solutions across critical systems. The role is fully remote, offering excellent flexibility and work–life balance, while enabling you to collaborate with experienced professionals on complex, enterprise-scale mainframe infrastructure.Work EnvironmentThis is a fully remote position, allowing you to work from your preferred location while engaging with colleagues via digital collaboration tools. You will operate within a mainframe-centric infrastructure, primarily focused on z/OS environments, IBM storage controllers, Dell Disk Library for Mainframe, FICON networks, and associated utilities such as CA Disk and TDMF. Working hours are aligned with standard business operations and may occasionally require flexibility to support planned changes, migrations, or incident resolution in a production environment. The role is primarily desk-based, using standard IT equipment, with no specific dress code beyond maintaining professional standards appropriate for remote meetings and interactions. Location Sheffield, UK Rate/Salary 3 GBP Daily Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. 2876353. Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as \"Allegis Group\"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands. 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