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# Network Administrator Enterprise Operations

- **Company:** PROLIM Global Corporation
- **Location:** Austin, TX, United States
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Application Firewall, Border Gateway Protocol, Cloud Computing, Computer Networks, Data Centers, Dynamic Host Configuration Protocol, Network Address Translation, Domain Name System (DNS), Trunking, Virtual Private Networks (VPN), Local Area Networks, Network Architecture, Network Monitoring, Routing, Network Administration, Open Shortest Path First (OSPF), TCP/IP, Virtual Local Area Networks, Wide Area Networks, Wireless Networks, Computer Network Operations, Firewalls (Computer Science), Juniper, Data Center Networking, Fortinet, Cisco
- **Published:** October 29, 2026
- **Apply:** https://www.careerbuilder.com/job-details/network-administrator-enterprise-operations-austin-tx--afec3e5a-fc06-4f04-9ebe-a2cf156770fa

## About the Role

Network Administration/Management, Network Administration/Management, Cloud Computing, Wireless Communications, Network Operations Center, Identify Issues, Firewalls, Wide Area Network (WAN), Local Area Network (LAN), Computer Networks, * 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.

## 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.