Role : Mainframe Network Engineer
Location : Salisbury, NC/Boston, MA/Frisco, TX(Remote is also Fine)
10–15+ years of hands-on mainframe network engineering experience.
Proven background working with z/OS mainframe environments, Parallel Sysplex, VTAM, TCP/IP, and SNA.
In-depth understanding of network protocols: TCP/IP, SNA, VTAM, DVIPA/DDVIPA, HiperSockets, Sysplex Distributor.
Proficiency with monitoring/troubleshooting tools (OMEGAMON, RMF, IBM NetView, Wireshark).
Security know-how: RACF, IP filtering, AT-TLS, VPN, IPSEC, IDS/IDS.
Experience developing and implementing high-availability and disaster recovery strategies on mainframe networks.
Familiarity with scripting (REXX, CLISTs) and automation for routine tasks and network toolkits.
Architect, deploy, and manage mainframe network environments using VTAM, SNA, TCP/IP, DVIPA/DDVIPA, Sysplex Distributor, and HiperSockets.
Continuously monitor network performance, latency, throughput, and traffic using tools like OMEGAMON, RMF, IBM NetView, Wireshark, and SolarWinds.
Diagnose and resolve performance bottlenecks and protocol mismatches.
Implement and enforce security protocols including RACF, IP filtering, AT-TLS encryption, IPSEC, intrusion detection, firewall and VPN configurations.
Participate in periodic security audits and maintain compliance with governance standards.
Troubleshoot connectivity issues, trace packet-level failures, and resolve VTAM, TCP/IP, hardware, and encryption errors.
Provide 24/7 on-call support and disaster recovery operations, including system backups and failover strategies.
Maintain detailed documentation: network diagrams, SOPs, change logs, incident reports.
Liaise with system programmers, DBAs, application teams, vendors, and third-party service providers for integration, upgrades, and troubleshooting.
Certifications (Preferred)
IBM certifications such as z/OS Administrator or IBM Certified System Administrator.
Networking/security credentials: CCNP, CISSP, or equivalent.
Added Advantage -
Familiarity with hybrid cloud/mainframe integration architectures.
Experience with file transfers: Connect-Direct, FTP(S), sFTP, TPX, Supersession.
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