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Network Administrator

https://www.roberthalf.com Logo

Robert Half

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Location:
United States , Galveston

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

Not provided
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Job Responsibility:

  • Configure, deploy, and support enterprise network infrastructure, including switches, routers, firewalls, wireless controllers, access points, and SAN technologies
  • Administer and support both physical and virtual server environments
  • Configure and manage enterprise‑grade firewalls, including routing, VPNs, encryption, and security policies following industry best practices
  • Monitor network performance and availability using tools such as SolarWinds, Servers Alive, and FortiCloud
  • Perform troubleshooting, root cause analysis, and issue resolution across complex Layer 2/3 and physical network topologies
  • Apply firmware updates, security patches, and system upgrades to critical infrastructure
  • Develop and maintain detailed documentation related to network topology, configurations, changes, patching, and service records
  • Evaluate network architecture and performance impacts to applications and end‑user experience
  • Collaborate with vendors and service providers, documenting findings, recommendations, and resolutions
  • Ensure compliance with data confidentiality policies and applicable state and federal regulations

Requirements:

  • Strong understanding of TCP/IP networking, including VLANs, STP, static/dynamic routing
  • Knowledge of redundancy and high‑availability technologies (LAG, LACP, failover automation)
  • Experience diagnosing issues across complex switching and routing environments
  • Familiarity with VoIP technologies (Cisco Call Manager, Unity, CER, SIP, Webex, Teams)
  • Experience with VMware and virtualized infrastructure environments
  • Working knowledge of hybrid Active Directory environments and security concepts
  • Understanding of certificate management, backups, and system restoration
  • Strong documentation, communication, and vendor‑coordination skills
  • Ability to work independently and collaboratively in a team environment
  • Bachelor’s degree in Computer Science or related discipline (or equivalent combination of education and experience)
  • Industry certifications preferred (Network+, Security+, CCNA, or equivalent)
  • 3–5 years of hands‑on experience supporting enterprise networking technologies, including: Switching, Routing, Firewalls, Wireless
What we offer:
  • medical
  • vision
  • dental
  • life and disability insurance
  • 401(k) plan

Additional Information:

Job Posted:
April 12, 2026

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