Senior Network Engineer - Aruba & Fortinet FortiGate

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.

• 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+.