Mainframe Network Engineer

Hi Professionals,

Greetings from VegaIntellisoft

Role              : Sr Mainframe Network Engineer

Location        : Dearborn, MI (Onsite)

Duration        : Full time

Experience     : 7 years needed

Overview / Summary:
We are seeking a Senior Mainframe Network Engineer with strong expertise in z/OS environments, network protocols, and security. This role focuses on advanced network troubleshooting, secure communications, system support, and performance monitoring within a mainframe infrastructure.

Key Responsibilities:

• Perform advanced network problem analysis using sniffer traces and TCP/IP packet captures
• Execute and analyse VTAM network traces to resolve issues in SNA/APPN environments
• Provide support for Enterprise Extender (EE) protocols for SNA-over-IP communication
• Customize and maintain z/OS Policy Agent (Pagent) for network policies and AT-TLS rules
• Manage secure communication protocols including SSH and SSL/TLS
• Administer digital certificates and keyrings
• Support secure file transfer services such as SFTP, FTPS, and Connect: Direct
• Configure and support IBM 3270 emulators (PCOMM, Host On-Demand, HACP-EE)
• Maintain VPS Enterprise Printing System
• Manage printer protocols including PCL and PostScript
• Generate reports using SMF records with REXX, CLIST, and Java
• Perform performance monitoring and capacity planning using IBM utilities and Syncsort
• Collaborate across teams and function effectively both independently and in group settings
• Participate in a rotational 24x7 on-call schedule and support flexible working hours

Required Qualifications:

• Proficiency in mainframe environments: TSO/ISPF, JCL, SDSF (JES2/JES3), OMVS
• Experience with distributed tools such as PuTTY, WinSCP, and Microsoft Office Suite
• Strong knowledge of mainframe systems, network protocols, network security, and z/OS
• 10+ years of IT experience with 8+ years in development
• Experience working with at least two programming languages or advanced expertise in one
• Bachelor’s degree, Master’s degree, or certification program