Senior Network Engineer

Founded in 1965, Herc Rentals is one of the leading equipment rental suppliers in North America with 2025 total revenues reaching approximately $4.4 billion. Herc Rentals serves customers through approximately 607 locations and has about 10,000 employees in North America.

About the role

The Senior Network Engineer is a technical position responsible for the design, implementation, and ongoing management of Herc Rentals' enterprise network, with a primary focus on Fortinet Secure SD-WAN architecture. This role provides high-level input on SD-WAN topology, WAN circuit strategy (MPLS, DIA, LTE, Broadband), routing design (EIGRP/BGP), and hybrid cloud connectivity (AWS, Azure, OCI) as the company continues to modernize legacy infrastructure onto the Fortinet platform. The incumbent must collaborate across the Network & Field Services team, managed service providers, Fortinet, Cisco, & Cisco Meraki to support a large, geographically distributed branch and data center footprint.

Responsibilities

• Design, configure, implement, and support Fortinet Secure SD-WAN deployments across branch, data center, and cloud-connected environments.
• Serve as an escalation point for FortiGate, FortiSwitch, FortiExtender, FortiAnalyzer, and FortiManager configuration, troubleshooting, and lifecycle management.
• Support and troubleshoot SD-WAN routing and underlay/overlay design, including EIGRP, BGP, and dynamic routing across MPLS, DIA, LTE, and Broadband circuits.
• Partner with cloud and infrastructure teams on connectivity between branch SD-WAN and hosted workloads in CoLo data centers, AWS, Azure, and Oracle Cloud.
• Lead or support the ongoing migration of legacy Cisco switching/routing infrastructure to the Fortinet stack (FortiSwitch, FortiGate) as part of enterprise network modernization initiatives.
• Create and maintain comprehensive documentation of SD-WAN topology, branch network templates/greenfield build standards, HA designs, VPN-to-VPN connectivity, and as-built network diagrams.
• Oversee Managed Service Provider (MSP)/NOC partners to ensure Fortinet-related network incidents and problems are resolved or escalated within SLA.
• Provide Engineering-level support for incident and problem management across the SD-WAN environment, including site-specific firewall rules and local policy exceptions.
• Analyze FortiAnalyzer/FortiManager reports, system logs, and health monitoring data (CPU, memory, sessions, HA status) to proactively identify and remediate issues.
• Collaborate with vendors (Fortinet, telecom carriers, MSPs) and internal technical teams to plan branch network deployments, greenfield builds, and data center transitions.
• Develop and manage SD-WAN project plans, including resource estimates, timelines, and stakeholder communication.
• Advise management on SD-WAN technology roadmap, Fortinet product evaluation, and recommendations for upgrades or new capabilities.
• Provide on-call support, including nights, weekends, and/or holidays, for SD-WAN and network-related incidents.
• Train, mentor, and educate other network engineers on Fortinet SD-WAN standards, topology, and troubleshooting methodology.
• Perform routine firmware upgrades, health checks, patch management, and performance monitoring.
• Resolve escalated network incidents, perform packet capture (PCAP) and log analysis, and execute root cause investigations.

Requirements

• 10+ years' experience in enterprise networking, with hands-on experience designing, deploying, and maintaining Fortinet SD-WAN environments (FortiGate, FortiSwitch, FortiExtender, FortiAnalyzer, FortiManager).
• Deep working knowledge of FortiOS, FortiGate, FortiManager, and secure SD-WAN.
• Demonstrated experience with large-scale SD-WAN topology design, including hub-and-spoke, dual-ISP/dual-WAN failover, and HA architectures.
• Experience provisioning and managing diverse WAN circuit types: MPLS, DIA, LTE, and Broadband.
• Solid understanding of dynamic routing protocols in an SD-WAN context: BGP, EIGRP.
• Experience with hybrid/multi-cloud connectivity: AWS, Azure, or OCI (Oracle Cloud Infrastructure).
• Experience with Cisco networking (ISR routers, switches, ASA firewalls, wireless) — particularly valuable in supporting Herc's ongoing Cisco-to-Fortinet migration.
• Experience with Cisco Meraki Access Points.
• Experience overseeing or working alongside a Managed Services/NOC partner for network monitoring and incident escalation.
• Excellent problem-solving and troubleshooting skills, particularly around SD-WAN failover, QoS, and circuit-level performance issues.
• Experience with network monitoring/analysis tools (e.g., FortiAnalyzer, SolarWinds) and performance tuning.
• Comprehensive understanding of TCP/IP, DHCP, DNS, VPN/VPN-to-VPN connectivity, and DMVPN.
• Experience with LAN hardware including patch panels, fiber optic, Cat5e, and Cat6 wiring.
• Experience supporting IP Telephony, Linux, Microsoft Server, and Windows environments.
• Knowledge of carrier services, interfaces, and telecom circuit troubleshooting.
• Working knowledge of Cisco UCS and VMware virtual environments.

Qualifications

• Bachelor's degree in Computer Science / Information Systems (or Similar) or equivalent experience.
• Active Fortinet certifications (e.g., NSE 4, NSE 7 Enterprise Firewall or SD-WAN, or FCP/FCSS) or equivalent experience.
• Cisco CCIE or CCNP (Preferred) or equivalent experience.

Skills

• Ability to lift up to 50 pounds.
• Ability to travel up to 25% for projects at data centers and branch/field locations.
• Proficient in customer knowledge transfer and network topology documentation.
• Strong attention to detail in project planning and SD-WAN configuration documentation.
• Ability to apply judgment, implement solutions, and resolve conflicts in a multi-tasked environment.
• Ability to communicate clearly and concisely, both verbally and in written documentation.
• Ability to thrive in a growing, fast-paced environment undergoing active network modernization.
• Ability to provide architectural design to new and evolving business requirements.

Benefits

• Keeping you healthy
  • Medical, Dental, and Vision Coverage
  • Life and disability insurance
  • Flex spending and health savings accounts
  • Virtual Health Visits
  • 24 Hour Nurse Line
  • Healthy Pregnancy Program
  • Tobacco Cessation Program
  • Weight Loss Program
• Building Your Financial Future
  • 401(k) plan with company match
  • Employee Stock Purchase Program
• Life & Work Harmony
  • Paid Time Off (Holidays, Vacations, Sick Days)
  • Paid parental leave
  • Military leave & support for those in the National Guard and Reserves
  • Employee Assistance Program (EAP)
  • Adoption Assistance Reimbursement Program
  • Tuition Reimbursement Program
  • Auto & Home Insurance Discounts
• Protecting You & Your Family
  • Company Paid Life Insurance
  • Supplemental Life Insurance
  • Accidental Death & Dismemberment Insurance
  • Company Paid Disability Insurance
  • Supplemental Disability Insurance
  • Group Legal Plan
  • Critical Illness Insurance
  • Accident Insurance