Senior Mainframe Networking & Session Migration Lead

TechDigital Group; Town of Texas (WI); Hybrid; USD 90,000 - 150,000; Full time

Job summary

TechDigital Group is seeking a Mainframe Network Administrator to manage, support, and modernize the mainframe networking environment, including VTAM, NCP, SNA, and TCP/IP. You will design, configure, and support the mainframe network infrastructure and troubleshoot session-level connectivity, with migration leadership for tools and platforms.

The role emphasizes planning cutover/rollback strategies, ensuring security/compliance, and providing L2/L3 support on rotation, while coordinating with

Qualifications

• 8+ years hands-on mainframe networking experience.
• Strong knowledge of SNA and TCP/IP protocols.
• Experience with CA TPX and CL/SuperSession configuration.
• Ability to lead end-to-end migrations and handle cutover planning.

Responsibilities

• Lead migration of session management and networking tools.
• Configure CA-TPX and CL/SuperSession for routing and access.
• Plan, test, and implement cutover and rollback strategies.
• Provide L2/L3 support and on-call rotation.

Skills

Mainframe networking

SNA/TCP-IP protocols

Session management

Migration planning

VTAM/NCP/z/OS

Troubleshooting

Stakeholder communication

End-to-end migrations

Tools

CA TPX

CL/SuperSession

NCP

z/OS

Job description

TechDigital Group is seeking a Mainframe Network Administrator to manage, support, and modernize the mainframe networking environment, including VTAM, NCP, SNA, and TCP/IP. You will design, configure, and support the mainframe network infrastructure and troubleshoot session-level connectivity, with migration leadership for tools and platforms.

The role emphasizes planning cutover/rollback strategies, ensuring security/compliance, and providing L2/L3 support on rotation, while coordinating with