Hybrid Mainframe Networking Specialist

Cognizant; Guadalajara; Híbrido; MXN 450.000 - 750.000; Jornada completa

Descripción de la vacante

Cognizant in Mexico invites applications for a Mainframe Network / Communication Server Systems Programmer. You will install, configure, and maintain IBM z/OS Communications Server components, ensuring high availability of critical enterprise systems across multiple LPARs.

The role focuses on VTAM/TCP-IP, EE, SNA, TLS/S SAF/RACF security, and performance tuning. Hybrid role in Guadalajara or Mexico City; advanced English required.

Formación

• Expertise in IBM Communications Server (VTAM/TCP-IP).
• z/OS Communications Server administration.
• Experience with Enterprise Extender, SNA, TCP/IP networking.
• Familiarity with OSA, HiperSockets, Sysplex networking.
• Security integration with TLS/SSL, AT-TLS, SAF/RACF.
• Network performance tuning and troubleshooting.
• Experience with network automation and monitoring tools.

Responsabilidades

• Install, configure, upgrade and maintain IBM z/OS Communications Server components (VTAM, TCP/IP, EE, FTP, Telnet, TN3270).
• Manage SNA and TCP/IP networking, OSA Express, HiperSockets and Sysplex networking.
• Monitor performance, analyze bottlenecks and optimize throughput using RMF/SMF and related tools.
• Diagnose complex issues, coordinate with IBM support and infrastructure teams to resolve incidents.

Conocimientos

IBM Communications Server

z/OS Communications Server admin

Enterprise Extender (EE)

SNA

TCP/IP networking

OSA/HiperSockets

Sysplex networking

TLS/SSL, AT-TLS, SAF/RACF

Network performance tuning

Network monitoring tools

Descripción del empleo

Cognizant in Mexico invites applications for a Mainframe Network / Communication Server Systems Programmer. You will install, configure, and maintain IBM z/OS Communications Server components, ensuring high availability of critical enterprise systems across multiple LPARs.

The role focuses on VTAM/TCP-IP, EE, SNA, TLS/S SAF/RACF security, and performance tuning. Hybrid role in Guadalajara or Mexico City; advanced English required.