Mainframe Network Engineer | Remote
Role :- Mainframe Network Engineer Location :- Salisbury, NC/Boston, MA/Frisco, TX(Remote is also Fine) Duration : Contract 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.
- Experience with file transfers: Connect-Direct, FTP(S), sFTP, TPX, Supersession.