Network Administrator
Job in
Frisco, Collin County, Texas, 75034, USA
Listed on 2026-02-28
Listing for:
CDW
Full Time, Contract
position Listed on 2026-02-28
Job specializations:
-
IT/Tech
Cybersecurity, Network Engineer, Network Security, Systems Engineer
Job Description & How to Apply Below
3-6 month contract (possible contract-to-hire)
Full-time hours each week
Benefits offered
In need of a Network Administrator to augment our Cloud & Infrastructure team during a period of rapid growth. This role will operate, maintain, and troubleshoot enterprise wired and wireless networks across corporate and data center environments.
The ideal candidate is operationally strong, security-minded, and comfortable performing production network changes, firewall updates, and connectivity troubleshooting in a live environment.
Responsibilities- Administer and support enterprise LAN/WAN and data center network infrastructure.
- Configure and maintain Layer 2 environments including VLANs, trunking, STP, and port channels
- Support core, distribution, and access layer network architecture.
- Perform firewall policy updates, NAT changes, VPN configuration, and high-availability support.
- Troubleshoot wired and wireless connectivity issues, including VLAN-to-SSID mappings and RF-related performance concerns.
- Execute production changes following change management practices.
- Monitor network performance and proactively resolve issues.
- Participate in incident response, root cause analysis, and documentation.
- Collaborate with Systems, Cloud, and Security teams to maintain secure and scalable infrastructure.
- 3+ years of hands-on enterprise network administration experience.
- Experience supporting data center networking environments (core/distribution/access models).
- Hands-on enterprise firewall administration experience (policy management, NAT, VPNs, HA concepts).
- Experience troubleshooting enterprise wired and wireless networks.
- Solid understanding of TCP/IP, DNS, DHCP, and routing fundamentals.
- Experience performing production network changes in live environments.
- Ability to work onsite in Frisco, TX.
- Experience with Juniper switching infrastructure.
- Experience with Palo Alto and/or Fortinet firewalls.
- Exposure to routing protocols such as OSPF or BGP.
- Experience with enterprise wireless platforms (Aruba, Cisco, Mist, etc.).
- Relevant certifications (CCNA, JNCIA, PCNSE, NSE, or equivalent).
- Experience in secure, compliance-driven, or defense environments.
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