Senior Mainframe Networking & Migration Lead

Tektree Systems Inc.

United States

Remote

USD 120,000 - 180,000

Full time

4 days ago

Be an early applicant

Application generator

A complete application in a minute — tailored resume and cover letter, ready to send.

Get past ATS filters

Job summary

Tektree Systems Inc. seeks a seasoned Mainframe Network Administrator to manage, support, and modernize the mainframe networking environment.

The role covers VTAM, NCP, SNA, and TCP/IP, with migration and session management responsibilities across CA TPX and CL/SuperSession. Responsibilities include designing, configuring, and supporting mainframe network infrastructure, planning cutover/rollback strategies, coordinating with vendors and stakeholders, and providing on-call L2/L3 support while

Qualifications

8 years hands-on mainframe networking.
Strong expertise in SNA and TCP/IP protocols.
CA TPX, CL/SuperSession configuration, administration, session routing and troubleshooting.

Responsibilities

Lead the migration of session management and networking tools to updated platforms with minimal business disruption.
Configure CA-TPX and CL/SuperSession for session routing, security and user access.
Plan, test, and implement cutover and rollback strategies with vendor teams and internal stakeholders.
Monitor session performance pre/post-migration and maintain configuration documentation.
Provide L2/L3 support on an on-call rotation and ensure security and regulatory compliance.