IT Network Administrator

USA Debusk, LLC; Houston (TX); Hybrid; USD 70,000 - 100,000; Full time

Job summary

USA DeBusk in Houston seeks an experienced Network Administrator to support, secure, and improve our enterprise network across corporate offices and distributed sites. You will manage LAN/WAN, VPNs, switches, routers, and firewalls to ensure high availability and security.

Hybrid work from our Galleria-area office is required; the role includes after-hours maintenance and collaboration with IT teams to deliver reliable infrastructure and support.

Qualifications

• Bachelor's degree in Information Technology, Computer Science, Network Engineering, or equivalent.
• 3+ years of experience administering enterprise network infrastructure.
• Experience supporting geographically distributed office environments.
• Experience administering enterprise firewall platforms.
• Experience supporting Cisco switching technologies.

Responsibilities

• Maintain & support LAN, WAN, WLAN, VPN, and internet connectivity.
• Configure, troubleshoot, and upgrade switches, routers, firewalls, and wireless infrastructure.
• Manage Cisco switching environments, VLANs, routing, trunking, spanning tree, port configuration, and switch security.
• Support connectivity across headquarters, branch locations, and remote operations.
• Coordinate network installations and activations for new offices, facilities, and temporary sites.
• Troubleshoot DNS, DHCP, routing, VPN, wireless, latency, and connectivity issues.
• Maintain network documentation, diagrams, IP addressing records, and equipment inventories.

Skills

TCP/IP networking

VLANs

Routing

Switching

VPN technologies

Wi‑Fi

Troubleshooting

Documentation

Communication skills

Education

Bachelor's degree in IT/CS/Network Eng

Tools

Cisco switching

Enterprise firewall platforms

Job description

USA DeBusk is seeking an experienced Network Administrator to support, maintain, secure, and continuously improve the company's enterprise network infrastructure across corporate offices and geographically distributed operating locations.

The Network Administrator will be responsible for the day-to-day operation of LAN, WAN, wireless, VPN, firewall, switching, and related network services. The position will play a key role in maintaining network availability, performance and security.

Must live in the Houston area and be able to commute to our office in the Galleria area (Hybrid Schedule)

Requirements

Maintain & Support Network Infrastructure

Ensure reliable connectivity and performance across the organization's network environment.

• Administer and support LAN, WAN, WLAN, VPN, and internet connectivity.
• Configure, maintain, troubleshoot, and upgrade switches, routers, firewalls, and wireless infrastructure.
• Manage Cisco switching environments, including VLANs, routing, trunking, spanning tree, port configuration, and switch security.
• Support connectivity across headquarters, branch locations, and remote operations.
• Coordinate network installations and activations for new offices, facilities, and temporary job sites.
• Troubleshoot DNS, DHCP, routing, VPN, wireless, latency, and connectivity issues.
• Maintain network documentation, diagrams, IP addressing records, and equipment inventories.

Monitor Network Performance & Availability

Help ensure critical business systems remain available and secure.

• Monitor network health, utilization, and device availability.
• Identify and resolve performance issues and capacity concerns proactively.
• Respond to outages and service interruptions with root-cause analysis and resolution.
• Work with telecommunications carriers, ISPs, and vendors to resolve connectivity issues.
• Support network redundancy and resiliency initiatives.
• Participate in after-hours maintenance and network support as needed.

Support IT Operations

Collaborate with internal IT teams to deliver reliable infrastructure and technical support.

• Provide Tier 2 and Tier 3 support for network-related incidents.
• Partner with Service Desk, Security, Infrastructure, Applications, and field IT teams.
• Create and maintain technical documentation and knowledge base articles.
• Maintain accurate network configuration and asset records.
• Participate in change management and incident management processes.
• Assist with configuration backups and recovery activities.
• Support disaster recovery and business continuity planning efforts.

Education & Experience

We're looking for a hands-on networking professional with strong technical knowledge and troubleshooting abilities.

• Bachelor's degree in Information Technology, Computer Science, Network Engineering, or a related field, or equivalent combination of education and experience.
• 3+ years of experience administering enterprise network infrastructure.
• Experience supporting geographically distributed office environments.
• Experience administering enterprise firewall platforms.
• Experience supporting Cisco switching technologies.

Technical Skills

• Strong knowledge of TCP/IP networking and IPv4 addressing/subnetting.
• Experience with VLANs, 802.1Q, routing, switching, NAT, DNS, and DHCP.
• Working knowledge of STP/RSTP and VPN technologies.
• Experience supporting enterprise Wi-Fi environments.
• Strong troubleshooting, analytical, and documentation skills.

Preferred Certifications

• Fortinet NSE Certification
• CompTIA Network+
• Strong technical troubleshooting and problem-solving abilities
• Excellent communication and interpersonal skills
• High attention to detail and security awareness
• Ability to manage multiple priorities and projects simultaneously
• Strong organizational and documentation skills

USA DeBusk offers the industrial infrastructure sector a technologically advanced and complementary suite of high-value traditional and specialty services for turnarounds, routine maintenance, and unplanned outages. We help customers save time, reduce costs, and optimize their processes while assuring best-in-class safety and compliance. Primary service lines include chemical cleaning; emission controls; fabrication services; FCCU hot catalyst handling; hydro blasting; hydro excavation; hydro cutting; inert catalyst handling; inspection; mechanical rental; nitrogen; pigging, decoking & filtration; pipeline integrity and field services; reactor cleaning; tank cleaning; transportation; unit decontamination; vacuum services; and waste solutions. USA DeBusk was founded in 2012, and our headquarters is in Deer Park, TX. We operate numerous offices, service centers, and customer-site-based locations across North America. Visit www.usadebusk.com for more information.

USA DeBusk is an equal opportunity employer, and we thrive on our differences for the benefit of our employees, our customers, and our community. It is our policy to provide equal opportunities in all decisions related to hiring, training, and promoting regardless of race, religion, color, gender, disability, national origin, ancestry, age, military status, sexual orientation, marital status or any legally protected characteristic or class.

Location

Houston

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