Network Engineer

Cullerton Group has a new opportunity for a Network Engineer 5. The work will be done onsite full-time in East Peoria, IL
, Monday through Friday on 1st shift. This is a long-term 12-month position that can lead to permanent employment with our client. Compensation is up to $68.38/hr + full benefits (vision, dental, health insurance, 401k, and holiday pay).

Cullerton Group is seeking a senior-level Network Engineer to support LAN operations and network infrastructure across multiple enterprise locations in the Americas. This role focuses on diagnosing, troubleshooting, and improving LAN environments while collaborating with cross-functional IT teams and business partners. The engineer will play a key role in supporting critical network services, executing infrastructure changes, and driving process improvements. This position is ideal for a hands-on network professional who thrives in complex, on-site enterprise environments.

• Diagnose, troubleshoot, and resolve LAN issues, including replacement of defective network components
• Provide LAN development and operational support for enterprise locations
• Participate in an on-call rotation to support critical incidents, including occasional off-shift or weekend work
• Collaborate with business partners and vendors on infrastructure integration activities
• Design and implement network process improvements to support scalability and reliability
• Follow ITSM processes and documentation standards for all network changes
• Work with cross-functional technical teams (firewall, VPN, wireless, NAC) to plan and execute changes
• Advise business partners on LAN-related technical questions and solutions

• Bachelor’s degree in a computer-related or engineering-related field
  , or equivalent experience
• 5–7 years of progressively responsible experience in network engineering or LAN support
• Strong knowledge of LAN implementation and support
  , including TCP/IP, ethernet, QoS, subnetting, VLANs, trunking, OSPF, and cabling (copper and fiber)
• Hands-on experience supporting and configuring Cisco switching environments
• Solid understanding of network risk domains and tiered architectures
• Ability to work independently and collaboratively in a team environment
• Strong communication and problem-solving skills

• Experience with network automation or scripting
• Familiarity with DNA Center / Catalyst Center
• Background supporting medium to large enterprise environments

This role offers the opportunity to work on complex enterprise network environments while collaborating with experienced infrastructure teams. You will support mission-critical systems, gain exposure to a wide range of network technologies, and contribute to continuous improvement initiatives. Cullerton Group provides a professional environment with strong growth potential, challenging technical work, and long-term career opportunities.