Experteer Overview In this role you will maintain and secure a large-scale z/OS mainframe network platform. You will join a multi-functional team focused on IBM mainframe networking, ensuring reliable connectivity and data/IP security for host subsystems and product suites. You'll handle critical configuration, issue resolution, and 24x7 support to keep transmission services running. This is an opportunity to work at scale with established mainframe tooling while contributing to responsible innovation. You will collaborate across technical, application, and operations teams to drive stable, secure mainframe environments. Compensaciones / BeneficiosConfigure and maintain the integrity and data/IP security of the Mainframe host communication subsystems and associated productsSupport IBM mainframe networks and transmission products and infrastructure as part of a multi-functional teamParticipate in 24x7 on-call support rotaPerform TCPIP Port Reserves (Additions, Deletions, Changes)Perform VTAM updates (Additions, Deletions, Changes)



and PU/LU updates including Enterprise ExtendersManage OSA Adapters in a complex mainframe environmentImplement AT-TLS rules (digital certificate management)Configure and manage IPSEC policies (permit/deny rules, VPN/IPsec tunnels)Trace, debug and perform error analysisCommunicate with technical, applications and operational staff to ensure network connectivity and security (including after hours)ResponsabilidadesExperience administering file transmission products such as Connect: Direct and FTP (or as a user)Knowledge of z/OS and z/OS utilitiesUnderstanding of z/OS networking services, structure and related software and protocolsUnderstanding of network security disciplines (IPSec, TLS/SSL, certificates) and their relation to file transmissionExperience with problem management from diagnosis to resolutionUnderstanding of Change Management processesAbility to customize/manage secure SNA and TCP/IP networks under z/OSKnowledge of mainframe n

📌 Network/Datacenter Engineer (España)
🏢 Ntt
📍 España