Overview
Las cualificaciones, habilidades y toda la experiencia relevante necesaria para este puesto se pueden encontrar en la descripción completa a continuación.
In this role you will support a large-scale z/OS mainframe network, focusing on secure host communication subsystems. You’ll join a multi-functional team providing 24x7 coverage and work on configuring, maintaining, and securing mainframe network services. You will interact with technical, applications, and operations teams to ensure connectivity and security, with opportunities to handle complex problems and stay current with evolving technologies. This position offers a meaningful chance to contribute to enterprise-scale mainframe operations within a globally diverse organization.
Responsabilidades
Support IBM mainframe networks and transmissions infrastructure
Participate in 24x7 support rota
Perform TCPIP Port Reserves (Add/Delete/Change)
Perform VTAM updates (Add/Delete/Change)
Manage OSA Adapters in a complex mainframe environment
Perform VTAM PU/LU updates including Enterprise Extenders
Implement AT-TLS rules and manage digital certificates
Configure and manage IPSEC policies (permit/deny, VPN/IPsec tunnels)
Trace, debug and perform error analysis
Coordinate with technical, applications and operations staff to ensure network connectivity and security,



including after hours and weekends as needed
Requisitos principales
Experience administering file transmission products such as Connect:Direct and FTP (or equivalent user experience)
Knowledge of z/OS and z/OS utilities
Understanding of z/OS networking services and related software/protocols
Understanding of network security disciplines (IPSec, TLS/SSL, certificates)
Experience in problem management from diagnosis to resolution
Understanding of Change Management processes
Ability to customize and manage secure SNA and TCP/IP networks under z/OS
Knowledge of mainframe network management tools (e.G., NetMaster) and multi-session tools xhfqzwm (TUBES, Supersession)
Experience with mainframe printing products
General z/OS systems programming experience
Knowledge of System z hardware including OSA-Express NICs
Excellent problem-solving and analytical skills
Strong communication, teamwork and negotiation skills
Familiarity with Cisco Network Solutions
Ability to work to tight deadlines;
strong organizational skills
Willingness to keep up with new technology
Understanding of Data Protection Act
Experience as a z/OS Systems Specialist in IT
communication
teamwork
negotiation
z/OS
z/OS utilities
TCP/IP networking

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