Sira Consulting, an Inc 5000 company · 20 hours ago
Mainframe Network consultant
United States
Contract
Remote
Senior Level, Lead/Staff
10+ years expSira Consulting, an Inc 5000 company, is seeking a Mainframe Network Consultant to architect, deploy, and manage mainframe network environments. The role involves monitoring network performance, diagnosing issues, implementing security protocols, and providing on-call support for disaster recovery operations.
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Hiring Manager
Aparajita Singh
Responsibilities
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
Qualification
Required
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
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
Preferred
IBM certifications such as z/OS Administrator or IBM Certified System Administrator
Networking/security credentials: CCNP, CISSP, or equivalent
Familiarity with hybrid cloud/mainframe integration architectures
Experience with file transfers: Connect:Direct, FTP(S), sFTP, TPX, Supersession
Company
Sira Consulting, an Inc 5000 company
SiRA Consulting is a Certified MBE consulting company that was founded in 2012.
201-500 employees
H1B Sponsorship
Sira Consulting, an Inc 5000 company has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (14)
2024 (50)
2023 (42)
2022 (63)
2021 (86)
2020 (70)
Funding
Current Stage
Growth StageCompany data provided by crunchbase