Managed Services Network Engineer - Fortinet

Tusker is a nationwide technology solutions and services company helping organizations solve complex IT challenges and move their businesses forward. Our expertise spans cloud infrastructure, cybersecurity, managed services, modern workplace, AI, and more. We’re a growing team that values strong relationships, fresh thinking, and doing great work-for our clients and for each other. It all comes back to a simple philosophy that guides who we are: People First. Always.

We are seeking a highly experienced Network Engineer with deep expertise in the Fortinet security ecosystem to design, implement, secure, and maintain enterprise network infrastructure. This role requires advanced hands-on skills with FortiGate firewalls and the broader Fortinet Security Fabric, along with strong troubleshooting ability in complex, multi-site environments. This engineer designs and operates resilient, secure networks at scale and brings a strong automation-first mindset. You’ll own complex network architecture and delivery, mentor junior engineers, and serve as an escalation point for the toughest issues.

Key Responsibilities

• Design, deploy, and manage FortiGate next-generation firewalls (NGFW) across data center, campus, cloud, and branch environments
• Configure and maintain FortiManager and FortiAnalyzer for centralized policy management, logging, and reporting
• Architect and support SD-WAN deployments using FortiGate SD-WAN capabilities, including performance-based routing and application steering
• Implement and manage site-to-site and remote-access VPNs (IPsec, SSL-VPN)
• Configure and troubleshoot routing protocols (BGP, OSPF) in conjunction with FortiGate deployments
• Manage the broader Fortinet Security Fabric: FortiSwitch, FortiAP, FortiClient EMS, FortiAuthenticator, FortiSandbox, FortiWeb, FortiADC
• Develop and enforce firewall policies, NAT rules, security profiles (IPS, AV, web filtering, application control)
• Lead network segmentation initiatives, including Zero Trust Network Access (ZTNA) implementation
• Perform firmware upgrades, patching, and lifecycle management across the Fortinet estate
• Conduct root-cause analysis for complex network/security incidents; provide Tier 3/4 escalation support
• Support compliance and audit requirements (PCI-DSS, HIPAA, SOC 2, NIST) as they relate to firewall/network configuration
• Create and maintain network diagrams, configuration standards, and runbooks
• Collaborate with security operations (SOC) teams on threat detection, incident response, and log analysis
• Mentor junior engineers and contribute to change management/CAB processes
• Participate in on-call rotation for infrastructure support

Required Qualifications

• 7-10+ years of network engineering experience, with 5+ years focused specifically on Fortinet products
• 2+ years in a client-facing management or account management capacity.
• NSE 4 certification required; NSE 5-7 (or higher) strongly preferred
• Expert-level knowledge of FortiOS configuration (CLI and GUI)
• Strong understanding of TCP/IP, routing/switching, VLANs, VPNs, and network security fundamentals
• Hands-on experience with FortiManager, FortiAnalyzer, and FortiGate HA clustering
• Experience with SD-WAN design and implementation
• Familiarity with cloud-based FortiGate deployments (AWS, Azure, or GCP)
• Scripting/automation experience (Python, Ansible, or REST API) for Fortinet device management is a plus
• Strong documentation and communication skills
• Bachelor's degree in a related field or equivalent professional experience
• Proven ability to manage multiple client accounts simultaneously with competing priorities.
• Strong understanding of ITIL framework and IT service management principles.
• Experience with PSA tools (e.g., ConnectWise Manage) for ticket queues.
• Exceptional communication skills - written and verbal - with the ability to translate technical information for non-technical audiences.
• Demonstrated ability to work across teams in a fast-paced environment.
• Strong analytical skills with experience interpreting service metrics and driving data-informed decisions.

Preferred Qualifications

• NSE 7 (Enterprise Firewall) or NSE 8
• CCNP or CCIE (Cisco) as complementary networking credentials
• CISSP or similar security certification
• ITIL v4 Foundation certification or higher.
• Prior experience working within an MSP or technology services organization.