Network Administrator $100,000 (Central Phoenix)

Job DescriptionJob Description

Network Administrator

Location: Phoenix, AZ (Hybrid) 
Position Type: Direct Hire

Salary: $100,000
Status: US Citizen or Green Card Holder ONLY

Overview

Our client is seeking a skilled Network Administrator to manage the full lifecycle of enterprise campus, data center, and cloud networking environments. This role supports distributed partner networks and ensures high availability, performance optimization, and secure connectivity across LAN, WAN, and WLAN infrastructure.

The ideal candidate brings hands-on expertise in network design, routing and switching, MPLS and SD-WAN environments, firewall administration, and advanced troubleshooting, with the ability to operate effectively in complex, multi-site enterprise environments.

Key Responsibilities

Network Architecture & Lifecycle Management

• Design, implement, and support enterprise LAN, WAN, and WLAN networks, including MPLS-based campus networking environments.
• Integrate data center networking and cloud networking solutions, including hybrid and distributed architectures.
• Lead infrastructure upgrades, redesign initiatives, and network lifecycle management planning to ensure scalability and performance.

Routing, Switching & Advanced Protocols

• Configure and support complex Layer 2 and Layer 3 routing and switching environments.
• Manage and troubleshoot routing protocols including EIGRP, OSPF, BGP, and MPLS, along with core services such as TCP/IP, DNS, and SMTP.
• Support modern data center technologies including VXLAN and ACI architectures.
• Perform packet capture analysis, root cause analysis, and advanced network diagnostics to resolve performance issues.

Network Security & High Availability

• Administer and maintain firewall platforms including Cisco ASA/Firepower, Palo Alto, and SonicWall.
• Configure and support VPN solutions and secure remote access technologies.
• Manage load balancing and failover configurations using F5 and Citrix platforms to ensure high availability.
• Maintain 24/7 operational integrity through proactive monitoring, incident response, and performance tuning.

Infrastructure Platforms & Tools

• Support enterprise hardware platforms including Cisco Catalyst and Nexus, Arista, Aruba, and Extreme Wireless.
• Utilize Cisco Catalyst Center, SD-WAN platforms, AWS networking tools, and network monitoring systems for configuration, automation, and performance visibility.

Operations, Collaboration & Mentorship

• network monitoring and alerting toolsMonitor enterprise network environments using proactive .
• Participate in an on-call rotation and provide after-hours support as needed to maintain service continuity.
• Collaborate with vendors, internal IT teams, and business stakeholders on solution design and implementation.
• Mentor junior network administrators and contribute to technical documentation, knowledge sharing, and operational best practices.

Qualifications

• 3+ years of professional experience in network administration or network engineering within enterprise environments.
• Bachelor’s degree in Computer Science, Information Systems, or related technical field, or equivalent hands-on experience.
• Strong expertise in routing and switching within campus and data center networks.
• Demonstrated experience with network security, VPN technologies, and high-availability configurations.
• Proven troubleshooting skills with the ability to perform root cause analysis in complex, distributed infrastructures.

Certifications

• Cisco CCNA or CCNP
• ITIL Foundation
• AWS Certified Cloud Practitioner

Work Environment

• Hybrid role with the majority of time spent on-site.
• Participation in an on-call rotation is required.
• Frequent inter-campus travel; occasional regional travel may be required.

"We are GTN – The Go To Network"

Company DescriptionWho We Are
GTN is the leader in technical staffing, leveraging innovation to drive next- recruiting to Fortune 2000 companies.

What We Do
We provide Scalable Technical Staffing solutions encompassing SOW, staff augmentation, and direct hire placement for Fortune 2000 companies, with niche service offerings in Cyber Security, Digital, Field Services, and Professional Services. Our recruiting teams are specialized, certified, and have endured rigorous technical boot camps and ongoing required educational courses and meetups.

What Proof We Have
We have experience in scalable IT Staffing since the year 2000. Our IT experts have helped Fortune 2000 corporations embrace the cybersecurity and digital space, with many of our experts remaining on contract with clients for 8+ years. Our staffing experts have been engaged to speak at cybersecurity conferences, and our teams are certified and specialize in divisions focused around cyber, digital, field, and professional services.

Why People Want It
Our valueCompany DescriptionWho We Are\r\nGTN is the leader in technical staffing, leveraging innovation to drive next- recruiting to Fortune 2000 companies.\r\n\r\nWhat We Do\r\nWe provide Scalable Technical Staffing solutions encompassing SOW, staff augmentation, and direct hire placement for Fortune 2000 companies, with niche service offerings in Cyber Security, Digital, Field Services, and Professional Services. Our recruiting teams are specialized, certified, and have endured rigorous technical boot camps and ongoing required educational courses and meetups.\r\n\r\nWhat Proof We Have\r\nWe have experience in scalable IT Staffing since the year 2000. Our IT experts have helped Fortune 2000 corporations embrace the cybersecurity and digital space, with many of our experts remaining on contract with clients for 8+ years. Our staffing experts have been engaged to speak at cybersecurity conferences, and our teams are certified and specialize in divisions focused around cyber, digital, field, and professional services.\r\n\r\nWhy People Want It\r\nOur value