Mainframe Host Network specialist
Core
Administer and support mission-critical mainframe host network connectivity and infrastructure for enterprise clients.
Role type
Senior Mainframe Host Network Specialist (System Administrator)
Builds
TCP/IP and SNA infrastructure, external customer/partner connectivity, and modernization initiatives.
Domain
Mainframe computing, Enterprise Networking, IT Services
Required skills
z/OS Communications Server administration, VTAM, TCP/IP, SNA, DNS, IP routing, network security, packet analysis, network performance tuning, problem determination, enterprise network troubleshooting
Preferred skills
Enterprise Extender (HPR/IP), TLS/SSL, encryption, firewall management, Wireshark, OSA/Sniffer, NetView, OMEGAMON, OSA-Express, HiperSockets, Parallel Sysplex, capacity planning, disaster recovery, high-availability architectures, ITIL processes, automation, Infrastructure as Code, vulnerability management, Active Directory, ADFS
Technologies
z/OS, VTAM, TCP/IP, SNA, DNS, VMware ESX, Microsoft Windows Server, Wireshark, NetView, OMEGAMON
Responsibilities
Support host network connectivity; Administer TCP/IP and SNA infrastructure; Support external customer and partner connectivity; Troubleshoot network performance issues; Maintain availability of mission-critical network services; Support modernization and protocol migration initiatives
Seniority
Senior, hands-on IC