Senior Network Engineer
iStaff
Van Alstyne, TX · Posted October 22, 2026
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This listing does not state pay. Across 59 open senior network engineer listings that state pay, the middle half runs $125,000 to $171,500 and the median is $145,000.
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About the job
Position Title: Senior Network Engineer
Overview:
Seeking a hands-on Senior Network Engineer to build, manage, and maintain network and security infrastructure across client environments and colocation datacenters. This role serves as the primary technical lead for network design, centralized management, lifecycle policies, and third-party SOC integration.
Key Responsibilities
Network & Security Operations: Manage firewalls (HA pairs, SD-WAN, IPS/IDS), switches, wireless access points, VPNs, network segmentation, ZTNA, and endpoint management tools.
Datacenter Management: Maintain high-end network platforms under formal change management; plan and execute maintenance windows with rollback procedures.
SOC Liaison: Act as the primary technical contact for a specialized SOC, managing log forwarding, onboarding, alert tuning, and security incident decision-making.
Client Onboarding & Infrastructure Builds: Assess and replace legacy/disparate vendor hardware during new client cutovers; establish standardized build profiles.
Operations & Documentation: Oversee ISP circuit monitoring, carrier escalations, uptime reporting, and infrastructure documentation (runbooks, diagrams).
Technical Environment
Core Network & Security: Fortinet Ecosystem (FortiGate, FortiManager, FortiAnalyzer, FortiSwitch, FortiAP, SD-WAN, FortiSASE, FortiEMS, ZTNA).
Supporting Systems: Auvik, RMM systems, IT Glue, Salesforce.
General Hardware: Multi-vendor networking equipment (assessment, support, and migration to standard platforms).
Requirements & Qualifications
Experience & Skills
Proven hands-on experience designing, building, and managing production firewall deployments across multiple environments.
Solid networking fundamentals with first-principles troubleshooting skills (TCP/IP, BGP/OSPF routing, VLANs, VPNs, DNS, DHCP).
Demonstrated ability to establish network/security standards and lifecycle policies.
Experience with centralized firewall management platforms and enterprise network monitoring tools.
Experience collaborating with an MSSP/SOC and handling escalated security events.
Datacenter experience operating under formal change management protocols.
Preferred: MSP environment experience, cloud networking (Azure), ISP/carrier management, and advanced SD-WAN/ZTNA deployments.
Certifications (Preferred / Supported)
Relevant vendor network/security certifications (e.g., FCP, FCSS, NSE) or equivalent production experience.