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Senior Network Engineer

IT Trailblazers, LLCChicago, IL🇺🇸United StatesPosted 1 Sept 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
Chicago, IL, United States
Posted
18 hours ago
iOS

Job Description

Senior Network Engineer

Introduction:

The Senior Network Engineer will be responsible for supporting multiple global LAN/WAN initiatives and providing L3 support for a global network spanning 130+ countries and 240+ sites. This individual will assist with engineering and troubleshooting activities across LAN/WAN, including switching, routing, firewall management, wireless configuration, and NAC deployment.

Responsibilities:

  • Configuring and supporting enterprise WAN environments
  • Assisting with day-to-day engineering activities such as switching, routing, firewall rule management, and wireless upgrades
  • Managing firewall requests, upgrades, and policy updates
  • Collaborating with team members on network projects
  • Providing L3 support for global network issues

Requirements:

Required Skills:

  • 7+ years of enterprise Cisco WAN/LAN configuration and engineering experience
  • Experience with BGP, OSPF, VLAN, and Spanning Tree Protocol
  • Firewall troubleshooting experience
  • Experience with Checkpoint or Palo Alto firewalls

Preferred Skills:

  • Knowledge of Cisco Catalyst 9000 series for switches, APs, and wireless controllers
  • Experience with SD-WAN technologies
  • Familiarity with Cisco IOS XE
  • Experience with ServiceNow, Logic Monitor, and Netbrain

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