Sr. Network Administrator - TS

Sr. Network Administrator - TS required - 26436

Requisition Number:26436

Required Travel: 0 - 10%

Employment Type:

Full Time/Salaried/Exempt

Anticipated Salary Range:$86,177.00-$

Security Clearance:

Top Secret

Level of

Experience:

Mid

This opportunity resides with Global Security (GS). Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and environmental; and Australia business. As a trusted partner to our military customers, HII designs, develops and operates the largest LVC enterprise that prepares warfighters for cross‑domain battle. With advanced technologies to enable mission readiness, HII understands that preparation requires full coordination—not readiness in piece‑parts.

For more than 40 years, the U.S. Navy has entrusted HII to maintain and modernize the vast majority of its fleet. With a holistic approach to life‑cycle maritime defense systems—from small watercraft to submarines, surface combatants and aircraft carriers—HII ensures a high state of readiness. HII supports the Department of Energy’s national security mission through the management and operation of its sites, as well as the safe cleanup of legacy waste across the country.

HII meets clients’ toughest nuclear and environmental challenges.

Our team of more than 7,000 professionals worldwide delivers all‑domain expertise and advanced technologies in service of mission partners across the globe. Mission Technologies is leading the next evolution of national defense – the data evolution – by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range from C5

ISR, AI and Big Data, cyber operations and synthetic training environments to fleet sustainment, environmental remediation and the largest family of unmanned underwater vehicles in every class. Find the role that’s right for you. Apply today. We look forward to meeting you.

The Navy Integrated Training Environment (NITE) Network Administrator is responsible for operating, maintaining, and troubleshooting network connectivity and infrastructure on the Navy Enterprise Tactical Training Network (NETTN).

You will support the operation and maintenance of multiple networks across different classification levels, ensuring continuous connectivity for customers and sites. This position is based in the Network Operations and Security Center (NOSC), which functions as the helpdesk for network operations support.

The role includes diagnosing and resolving WAN circuit issues, equipment failures, router and switch configurations, firewall ACLs, VoIP device registration, and cryptographic device configuration and keying. You will coordinate with Navy, DISA, and commercial circuit providers for implementation and troubleshooting, maintain Information Assurance compliance (including IOS upgrades and configuration changes), and support remote sites in restoring network services.

• Maintain smooth operation of local area, wide area, and virtual private networks (VPNs)
• Plan, evaluate, and coordinate installation or reconfiguration of network hardware/software
• Configure and maintain routers, multiplexers, firewalls, hubs, bridges, and gateways
• Monitor network performance and conduct short- and long-range capacity planning
• Troubleshoot connectivity issues at the hardware, software, and protocol/packet level
• Maintain and update network documentation, operational instructions, and SOPs
• Coordinate with third‑party vendors for maintenance and upgrades
• Ensure compliance with DoD Security Technical Implementation Guides (STIGs)

• Bachelor’s degree in a related field + 9 years relevant experience
• Master’s degree in a related field + 7 years relevant experience
• PhD/JD in a related field + 4 years relevant experience
• High school diploma/equivalent + 13 years relevant experience

• Demonstrated experience in network operations and support, including LAN/WAN installation and troubleshooting
• Proficiency with Cisco networking fundamentals (IP addressing, VLANs,…