Network Engineer III

The Sr Network Engineer is a senior-level technical role responsible for leading advanced network operations engineering and infrastructure improvements across corporate retail and cloud environments. This position owns the resolution of high-impact and complex network incidents provides technical leadership across multi-site connectivity and security initiatives and ensures the network environment remains stable secure and scalable. The role works within established standards and change control processes while contributing to architecture modernization planning operational maturity and mentoring Level 1 and Level 2 engineers.

DUTIES AND RESPONSIBILITIES:

• Lead resolution of Tier 3 network incidents and outages involving complex LAN/WAN SD-WAN firewall and wireless issues across multiple locations.
• Perform deep technical troubleshooting including advanced routing/switching analysis packet capture review and root cause analysis.
• Own deployment standards for network technologies including configuration templates security baselines and operational best practices.
• Architect implement and support enterprise network solutions across retail and corporate environments ensuring scalability and performance.
• Serve as the technical escalation point for Fortinet platforms including FortiGate FortiSwitch FortiAP FortiNAC and centralized management through FortiManager.
• Lead FortiNAC administration and policy enforcement across wired and wireless environments including endpoint profiling automated onboarding workflows quarantine/remediation actions and integration with FortiGate/FortiSwitch/FortiAP to strengthen visibility and network access control.
• Lead and improve network monitoring strategy (e.g. PRTG and enterprise alerting) including KPI-driven tuning noise reduction and proactive detection.
• Support and optimize SD-WAN design circuit failover strategy WAN performance validation and application pathing improvements.
• Partner with internal teams vendors and service providers to drive resolution for complex carrier issues circuit migrations and store-level connectivity escalations.
• Lead network project execution including store openings refresh initiatives platform standardization security improvements and circuit modernization.
• Develop and maintain network documentation including diagrams implementation standards site templates troubleshooting guides and network lifecycle processes.
• Provide technical mentorship to Level 1 and Level 2 engineers including training support troubleshooting coaching and review of technical work.
• Participate in change planning maintenance windows and risk assessments to ensure minimal business disruption and controlled execution.
• Contribute to continuous improvement initiatives to increase network stability reduce downtime and improve service delivery across the organization.

POSITION QUALIFICATIONS:

• Expert-level understanding of enterprise networking fundamentals including TCP/IP routing protocols VLAN design subnetting WAN technologies and wireless architecture.
• Strong experience troubleshooting and supporting multi-site retail networks at scale including high availability and business-critical connectivity requirements.
• Strong firewall and security knowledge including policy design NAT segmentation and VPN technologies.
• Strong experience administering FortiNAC to enforce enterprise network access control including endpoint profiling policy design agentless/agent-based onboarding guest/BYOD workflows remediation/quarantine rules and integration with Fortinet infrastructure (FortiGate/FortiSwitch/FortiAP) to improve visibility compliance and security across wired and wireless environments.
• Experience leading technical projects and producing clear documentation standards and operational procedures.
• Proven ability to communicate effectively with technical teams vendors and business stakeholders during incident response and project execution.
• Ability to prioritize manage and execute in a fast-paced environment supporting multiple locations and simultaneous initiatives.
• Ability to travel to retail locations as needed (occasional based on business needs).
• Ability to participate in after-hours/on-call support as scheduled.

EDUCATION AND/OR EXPERIENCE:

• Associate or Bachelors degree in Information Technology or related field preferred (or equivalent experience).
• 5 years of experience in network operations and engineering roles supporting enterprise infrastructure.
• Strong experience with Fortinet technologies preferred (FortiGate FortiSwitch FortiAP FortiManager FortiAnalyzer FortiNAC).
• Experience supporting SD-WAN carrier troubleshooting and large-scale multi-site environments preferred.
• Professional certifications preferred (two or more): CCNP Fortinet NSE certifications Network.

PHYSICAL REQUIREMENTS:

• Ability to sit and work at a computer for extended periods.
• Ability to lift and carry up to 40 lbs (network equipment boxes peripherals).
• Ability to bend crouch and work in small network closets or under counters when required.

Required Experience:

IC