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# Senior Network Engineer - Aruba & Fortinet FortiGate

- **Company:** Insight Global
- **Location:** Dublin, OH, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** IEEE 802.1X, Wireless LAN, Amazon Web Services, Microsoft Azure, Border Gateway Protocol, Cloud Computing, Cyber Security, Data Centers, Dynamic Host Configuration Protocol, Software Design Patterns, Domain Name System (DNS), Internet Protocol Security (IP SEC), Subnetting, Virtual Private Networks (VPN), Python (Programming Language), NetFlow, Network Architecture, Routing, Packet Analyzer, Open Shortest Path First (OSPF), Performance Tuning, Ansible, Zero Trust Network Access, Security Information and Event Management, Simple Network Management Protocols, TCP/IP, Virtual Local Area Networks, Wide Area Networks, Transport Layer Security, Computer Network Operations, Computer Network Technologies, Juniper, Fortinet, Api Design, Terraform, Cisco
- **Published:** October 21, 2026
- **Apply:** https://www.techcareers.com/job.asp?id=3462147572&tx=DT10899UTT&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* 7+ years of progressive experience in network engineering (enterprise or MSP environments), including multi-site WAN operations.
 * Strong hands-on expertise with Fortinet FortiGate, including: o SD-WAN design/operations, VPN (IPsec/SSL), routing, NAT, security profiles, and segmentation. o BGP (iBGP/eBGP), route policy, and troubleshooting in multi-site environments. o Proven experience designing/operating multi-homed / dual-ISP connectivity at data centers. o FortiManager (must-have) for centralized configuration and policy management at scale.
 * Strong hands-on expertise with HPE Aruba in production, including: o Aruba switching and enterprise WLAN. o Aruba Central/AirWave administration. o ClearPass (or equivalent NAC) for 802.1X/guest workflows.
 * Experience executing Zero Trust concepts in real environments (segmentation, least privilege, identity-aware access, and operational telemetry).
 * Deep understanding of core networking: o TCP/IP, subnetting, routing (BGP required; OSPF preferred), switching, VLANs, STP, QoS. o DNS/DHCP fundamentals and common troubleshooting patterns.
 * Proven ability to troubleshoot complex issues using packet captures, logs, and structured RCA.
 * Experience with change management, maintenance windows, and production cutovers.
 * Strong documentation and communication skills; comfortable leading remote deployments with on-site coordination.
 * Ability to travel up to 50% for the first 6 months.
 * Fortinet: ADVPN (design, deployment, and troubleshooting), advanced SD-WAN design patterns, HA/cluster design, advanced UTM tuning, ZTNA/SASE exposure.
 * FortiAnalyzer experience (reporting, event investigation, log retention strategy).
 * Aruba: advanced RF optimization, large-scale Aruba Central operations, ClearPass posture/profiling at scale.
 * Multi-vendor experience (Cisco/Juniper/Arista/Palo Alto) and hybrid environments.
 * Automation/scripting: Python, Ansible, Terraform, or API-driven network operations.
 * Monitoring/observability: SNMP/NetFlow/sFlow, syslog/SIEM integration, synthetic monitoring.
 * Cloud networking exposure (Azure/AWS networking, VPN/ExpressRoute/Direct Connect). Certifications (preferred)
 * Fortinet: NSE 4+ (or current Fortinet certification equivalents).
 * Aruba: ACMP/ACSP (or equivalent Aruba switching/wireless certs).
 * Other relevant certs: CCNP, JNCIP, Security+.

## Description

We're seeking a Senior Network Engineer to lead the design, deployment, and support of enterprise network and security infrastructure across approximately 50 sites and 4 data centers. This hands-on role will focus on Aruba switching/wireless, Fortinet FortiGate SD-WAN and security, and overall network architecture, reliability, and performance.