Mainframe Network administrator Position Description: The Mainframe Network administrator will manage, support, and modernize the mainframe networking environment. The applicant will design, configure, and support mainframe network infrastructure including VTAM, NCP, SNA, and TCP/IP, and will troubleshoot session-level connectivity and session management functions using CA TPX, CL/SuperSession and related tools. Excellent communication skills are required; previous session management migration experience is a plus. The candidate will lead and execute the migration of session management and networking tools to updated or consolidated platforms, ensuring session continuity and minimal business disruption. Duties include configuring CA-TPX, CL/SuperSession for session routing, security, and user access; planning, testing, and implementing cutover and rollback strategies; coordinating timelines, dependencies, and risk mitigation with vendor teams and internal stakeholders; monitoring session performance pre/post-migration; and maintaining configuration and procedure documentation. The role also ensures security, audit, and regulatory compliance and provides L2/L3 support on an on-call rotation. Required Skills: · 8+ years hands-on mainframe networking · Strong expertise in SNA and TCP/IP protocols · CA TPX, CL/SuperSession configuration, administration, session routing and troubleshooting · Session management tool and network software migration · Session continuity and cutover/rollback planning · VTAM, NCP, Communications Server for z/OS · Troubleshooting, documentation and stakeholder communication · Able to lead migrations end-to-end, including validation Desired Skills: · z/OS and related mainframe operating environments · High expertise in handling tools like CA TPX and CL/Supersession · Migrating to CL/SuperSession from other platforms · Network security protocols and compliance frameworks Additional or Advantageous Skills: · BFSI, healthcare or large enterprise mainframe estates · Vendor tool transition and vendor coordination · L2/L3 support and on-call rotation | 
.png?format=webp)
Never miss an opportunity! Create an alert based on the job you applied for.