Mainframe Network Admin

Job Title: Mainframe Network AdminLocation: RemoteDuration: Long Term ContractPosition 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.8+ years hands-on mainframe networking.Strong expertise in SNA and TCP/IP protocols.CA TPX, CL/SuperSession configuration, administration, session routing and troubleshooting.VTAM, NCP, Communications Server for z/OS.Able to lead migrations end-to-end, including validation.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.