At Cognizant we have an adecuado opportunity for you to be part of one of the largest companies in the digital sector worldwide. A Great Place To Work where we look for people who contribute new ideas, experiencing a dynamic and growing environment. At Cognizant we promote an inclusive culture, where we value different perspectives providing career growth and development opportunities. #WelcomeToCognizant
Qualifications
- Expertise in IBM Communications Server (VTAM/TCP-IP)
- z/OS Communications Server administration
- Enterprise Extender (EE), SNA, TCP/IP networking
- OSA, HiperSockets, Sysplex networking
- TLS/SSL, AT-TLS, SAF/RACF security integration
- Network performance tuning and troubleshooting
- Network automation and monitoring tools

ADVANCED ENGLISH IS A MUST
Hybrid role in Guadalajara or Mexico City
Core Responsibilities
- System Installation and Maintenance: Install, configure, upgrade, and maintain IBM z/OS Communications Server components including VTAM, TCP/IP, Enterprise Extender (EE), FTP, Telnet, TN3270, and related networking products.



Apply software maintenance, PTFs, and version upgrades using SMP/E while ensuring compliance with vendor recommendations and organizational standards. Maintain network definitions, startup procedures, and configuration datasets.
- Network Infrastructure Management: Configure and administer SNA and TCP/IP networking environments. Support OSA Express adapters, HiperSockets, Sysplex Distributor, Dynamic VIPA (DVIPA), and Parallel Sysplex networking. Coordinate with distributed network teams to ensure end-to-end connectivity between mainframe and enterprise systems.
- Performance and Capacity Management: Monitor network performance, analyze communication bottlenecks, and optimize network throughput and response times. Utilize tools such as OMEGAMON for Networks, NetView, MainView, RMF, and SMF reports to identify anomalies and performance trends. Assist with capacity planning activities and network growth initiatives.
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📌 Mainframe Network Systems Programmer (Jalisco)
🏢 Cognizant
📍 Jalisco