About this role
Salary: £41,000 - 81,000 per year
Requirements: Experience administering file transmission products such as Connect:Direct and FTP, or strong experience using these productsKnowledge of z/OS and z/OS utilitiesUnderstanding of z/OS networking services, structure, related software, and protocolsUnderstanding of network security disciplines, including IPSec, TLS/SSL, and certificates, and their relationship to file transmissionExperience managing problems from initial diagnosis through resolutionUnderstanding of change management processesAbility to customize and manage secure SNA and TCP/IP networks under z/OSKnowledge of mainframe network management tools such as NetMaster, and multi-session manager products such as TUBES and SupersessionExperience managing mainframe printing productsGeneral z/OS systems programming experienceKnowledge of System z hardware, including OSA-Express network cardsFamiliarity with Cisco Network SolutionsStrong problem-solving and analytical skillsGood communication, teamwork, and negotiation skillsAbility to work to tight deadlines under pressureGood organizational skills, flexibility, and adaptabilityAbility to build and maintain strong working relationships with colleagues and customersBusiness awareness and understanding of IT business requirementsWillingness to keep up to date with new technology developmentsUnderstanding of information legislation, such as the Data Protection ActExperience working as a z/OS Systems Specialist in the IT industry Responsibilities: Support a large-scale z/OS systems platform as part of a team of technical professionalsConfigure and maintain the integrity and data/IP security of mainframe host communication subsystems and associated program productsSupport IBM mainframe networks, transmission products, and infrastructure as part of a multi-functional teamParticipate in a support rota providing 24x7 coveragePerform TCP/IP port reserve additions, deletions, and changesPerform VTAM updates, including PU/LU updates and Enterprise Extenders (EE)Manage OSA adapters in a complex mainframe environmentImplement AT-TLS rules and manage digital certificatesConfigure and manage IPSEC policies, including permit/deny rules and VPN IPSEC tunnelsTrace, debug, and perform error analysisCommunicate regularly with technical, applications, and operational staff to ensure network connectivity and security, including occasional after-hours and weekend work Technologies: AICloudCiscoHardwareIBMIBM MainframeSupportNetworkSecurityTCP/IPVPN More:
We are NTT DATA, a global business and technology services leader serving 75% of the Fortune Global 100. We provide enterprise-scale AI, cloud, security, connectivity, data center, and application services, alongside consulting and industry solutions. As a Global Top Employer, we have experts in more than 70 countries, and our parent, NTT Group, invests over $3 billion annually in research and development. We foster a diverse and inclusive workplace and are committed to equal opportunity. This is a full-time role with locations listed in Madrid and Barcelona, Spain; Ireland; the United Kingdom; and Bucharest, Romania. The role may involve occasional after-hours and weekend work.
last updated 40 week of 2026