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Network Engineer

Fusion NetworksPort Jefferson Station, NY🇺🇸United StatesPosted 13 Jul 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Network Engineer

We are seeking a Network Engineer to support the deployment, troubleshooting, and escalation of services for our ISP customers. The ideal candidate has experience working in ISP or service provider environments and is comfortable troubleshooting routing, switching, and SD-WAN scenarios in production networks.

Why This Role Matters

This is a customer-facing role that helps maintain the customer-first reputation we have developed. Our company focuses on going above and beyond to exceed customer expectations of what a modern-day ISP delivers. This role is directly involved in creating that experience for our customers.

Responsibilities

  • Escalation & Troubleshooting
    • Serve as an escalation point for the support team for network issues
    • Troubleshoot production problems across core, distribution, access, and edge layers
    • Diagnose and resolve routing, switching, and SD-WAN-related incidents
    • Participate in root cause analysis for major incidents and outages
  • Network Deployments & Installations
    • Provision and prepare equipment for installation at customer locations
    • Provide technical guidance to field technicians and dispatch teams
    • Support backbone and transit circuit turn-ups
    • Assist with SD-WAN deployments and provisioning
    • Validate configurations to ensure installs follow internal standards
  • Operational Support
    • Monitor network health and respond to alerts
    • Participate in network maintenance and infrastructure upgrades
    • Maintain documentation
    • Assist with improving operational procedures and configuration standards

Requirements

Required Technical Skills & Experience:

  • 5+ years of experience in ISP, carrier, or service provider networking environments
  • Strong Tier 3 troubleshooting experience in production networks
  • Knowledge of BGP, OSPF, MPLS, VLANs, Layer 2/Layer 3 networking, QOS and traffic shaping
  • Experience working with Arista, MikroTik, Cisco, and Aruba platforms
  • Understanding of SD-WAN architectures and operational models
  • Experience supporting networks with uptime and SLA expectations
  • Ability to diagnose and resolve complex issues under pressure
  • Experience with SD-WAN platforms (Fortinet, Cisco, VeloCloud, or similar)
  • Experience coordinating with transit providers and peering partners
  • Familiarity with fiber circuit turn-ups and optical transport
  • Experience with network monitoring, alerting systems, and ticketing platforms
  • Ability to clearly communicate in English with technicians and customers daily

 

Preferred Skills: Mikrotik, Arista, BGP, ISP, MPLS, Network Design, OSPF, Routers, SD, Fortinet

Benefits:

  • 401(k)
  • Dental insurance
  • Health insurance
  • Paid time off
  • Tuition reimbursement

 

Skills

Fiber

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