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Network L3 Engineer

GalentAuburn Hills, MI🇺🇸United StatesPosted 31 Aug 2026

Quick Overview

Seniority
Mid Senior
Work mode
On Site
Location
Auburn Hills, MI, United States
Posted
Yesterday
ComplianceRoot Cause Analysis

Job Description

Job Summary
  • Seeking an experienced Network L3 professional to support and manage enterprise networking infrastructure, including LAN, WAN, WLAN, and SD-WAN environments.
  • Responsible for maintaining network performance, security, availability, and operational excellence across enterprise infrastructure.
Key Responsibilities
  • Manage and support enterprise LAN, WAN, WLAN, and SD-WAN environments.
  • Configure, troubleshoot, and optimize Cisco routers, switches, wireless controllers, and security devices.
  • Monitor network performance and proactively resolve connectivity, latency, and availability issues.
  • Perform incident management, problem management, and root cause analysis (RCA).
  • Execute network changes, upgrades, and maintenance activities.
  • Support firewall, load balancer, NAC, ISE, and remote access solutions.
  • Collaborate with server, cloud, and security teams to resolve infrastructure issues.
  • Maintain network documentation, topology diagrams, and operational runbooks.
  • Participate in on-call support and major incident troubleshooting.
  • Ensure compliance with organizational standards and security policies.
Required Skills
  • Network L3 support and administration
  • Cisco SDN Network Administration
  • Cisco Routing and Switching
  • SD-WAN
  • Zscaler
  • Firewall Technologies
  • Cisco ISE
  • LAN/WAN/WLAN Support
  • Network Monitoring and Troubleshooting
  • Incident and Problem Management
  • Root Cause Analysis (RCA)
Qualifications
  • Proven experience supporting enterprise network environments.
  • Strong expertise in Cisco networking technologies and SD-WAN solutions.
  • Experience with Zscaler, firewall platforms, Cisco ISE, and remote access solutions.
  • Strong troubleshooting, analytical, and problem-solving skills.
  • Ability to work onsite in Auburn Hills, MA.
  • Ability to participate in on-call support and major incident response activities.
We are an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, citizenship status, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable law.
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