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Known managed-services employer plus metro location increase competition, but niche mainframe skills narrow the pool.
Mainframe z/OS networking expertise is highly industry- and platform-specific, limiting cross-industry transferability.
Multiple mandatory mainframe networking technologies and enterprise monitoring tools create strict technical screening requirements.
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Support and administer mainframe host network connectivity including TCP/IP and SNA infrastructures.
Troubleshoot network performance issues and maintain availability of mission-critical network services.
Support modernization efforts including protocol migrations and recommend modernization options to clients.
Strong experience with IBM z/OS Communications Server: VTAM, TCP/IP, Enterprise Extender, and SNA administration.
Expertise in DNS, IP routing, network security, packet analysis, and connectivity diagnostics.
Knowledge of Microsoft Windows Server 2016/2019, VMware ESX, and public/private cloud environments including cloud migrations.
Work Experience Required: Not explicitly mentioned in the JD.
Experienced in enterprise network troubleshooting and communications infrastructure support in production environments.
Skilled in using monitoring tools such as Wireshark, NetView, OMEGAMON and knowledgeable about IBM Z networking technologies.
Capable of managing network security, disaster recovery, high-availability architectures, and ITIL processes with strong cross-functional stakeholder management.