Job Title: Senior Mainframe Network Administrator - Remote / Telecommute
Job Location: New York City, NY
Job Type: Contract
Pay Range: $66.00hr - $71.00hr
Job Overview:
The Mainframe Network Administrator will manage, support, and modernize the mainframe networking environment. The candidate 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. Strong verbal and written 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 and 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- and post-migration; and maintaining configuration and procedure documentation. The role also ensures security, audit, and regulatory compliance while providing L2/L3 support on an on-call rotation.
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