Onsite IT Networking Engineer - Amarillo, TX

Geosyntec Consultants; Amarillo (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

Longenecker & Associates, a Geosyntec Company, supports critical missions for the DOE complex and is seeking an IT Networking Engineer to sustain 99.9% network availability at Pantex in Amarillo, TX. The role requires active clearance, DoD/DOE eligibility, and strong Cisco routing/switching skills.

We value experience with Cisco ISE, DNA Center, Tenable, Splunk, load balancers, DNS/DHCP/IPAM, and a commitment to security and safety in a government contracting environment.

Qualifications

• At least 5 years of relevant experience or equivalent education.
• Experience with Cisco enterprise routing and switching technologies.
• Knowledge of network troubleshooting, operations, and infrastructure management.
• Active DoD Top Secret (TS) clearance or DOE Q clearance, or eligible for reinstatement.
• Ability to work with classified information and security requirements.
• U.S. Citizenship required.
• Must pass a federal background investigation to obtain/maintain DOE Q clearance.
• Health & Safety training and client-driven background checks.

Responsibilities

• Maintain 99.9% availability of core network infrastructure including routers, switches, and data center fabrics.
• Resolve network incidents and service outages within established SLAs.
• Develop lifecycle, upgrade, patching, and rollback plans for network infrastructure.
• Monitor network devices and ensure proper NOC/SOC onboarding and telemetry reporting.
• Provide recommendations for performance optimization, capacity planning, and remediation activities.
• Support Cisco ISE authentication, authorization, and access control services.
• Administer Network Access Devices and identity groups.
• Manage VoIP administration, moves, adds, changes, and deletions.
• Administer wireless LAN infrastructure and access point deployments.
• Manage load balancers, DNS, DHCP, and IPAM environments.
• Maintain technical documentation, diagrams, inventories, and change records.
• Submit and manage RFCs through ServiceNow and comply with CAB processes.

Skills

Cisco routing & switching

Network troubleshooting

Security clearance

U.S. Citizenship

Background check compliance

Federal security requirements

Education

Bachelor's degree in related field

Master's degree in related field

10+ years experience in lieu of degree

Tools

Cisco ISE

Catalyst Center / DNA Center

Tenable

Splunk

Load Balancers (LTM/GTM)

DNS/DHCP/IPAM

Job description

Longenecker & Associates, a Geosyntec Company, supports critical missions for the DOE complex and is seeking an IT Networking Engineer to sustain 99.9% network availability at Pantex in Amarillo, TX. The role requires active clearance, DoD/DOE eligibility, and strong Cisco routing/switching skills.

We value experience with Cisco ISE, DNA Center, Tenable, Splunk, load balancers, DNS/DHCP/IPAM, and a commitment to security and safety in a government contracting environment.