Network Administrator Enterprise Operations

Network Administrator Enterprise Operations

Job Description

We are seeking a hands-on 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.

This is a 6-month onsite role based in Frisco, TX, with the opportunity to convert to full-time based on performance and business need.

This position is based in Dallas, TX.

What You'll Do:

• 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.

Required Qualifications:

• 3+ years of hands-on enterprise network administration experience.
• Strong Layer 2 networking expertise (VLANs, trunking, STP, port channels).
• 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.

Preferred Qualifications:

• 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.