Mainframe Network Engineer / Remote USA

Mainframe Network Engineer Location: Remote is also Fine Job description of Mainframe Network Engineer • 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. Experience Required • 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. Technical Expertise • 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. 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.