Network Administrator – Network Communications 3

Mission Technologies, a division of HII

. Operate, maintain, and troubleshoot network connectivity and infrastructure on the Navy Enterprise Tactical Training Network (NETTN) .

Posted 10/21/2026full-timeVirginia Beach • Virginia • United StatesMid-LevelSenior💰 $82,046 - $115,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in network operations, including troubleshooting WAN and LAN equipment, maintaining Information Assurance compliance, and providing helpdesk support. Proficient in Cisco technologies and network security measures, with a strong ability to communicate effectively with customers and coordinate with various stakeholders.

Highest-signal resume keywords

Network TroubleshootingCisco InternetworkingSecurity+ CertificationWAN/LAN Equipment InstallationInformation Assurance Compliance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network ConnectivityWAN Circuit TroubleshootingRouter ConfigurationSwitch ConfigurationFirewall ACL ManagementVoIP ConfigurationCryptographic Device ConfigurationPacket AnalysisNetwork MonitoringIP Networking Fundamentals

Soft Skills

Customer CommunicationIssue ResolutionTeam Coordination

Tools & Technologies

SolarWindsCisco IOSProtocol AnalyzersNetFlowVoIPPoE SwitchesCall Manager

Certifications & Qualifications

Security+ CertificationCCNP Certification

Industry Keywords

Department of DefenseNavy Enterprise Tactical Training NetworkInformation AssuranceNetwork Operations CenterTechnical Implementation Guidelines

Tech Stack

Tools & technologies

FirewallsiOSSwitchingVoIP

About the role

Key responsibilities & impact

Operate, maintain, and troubleshoot network connectivity and infrastructure on the Navy Enterprise Tactical Training Network (NETTN)
Support operation and maintenance of multiple networks across different classification levels
Maintain continuous network connectivity for customers and sites
Troubleshoot WAN circuits, equipment failures, router and switch configurations, firewall ACLs, VoIP registrations and configurations, and cryptographic device configurations and keying material
Coordinate with Navy, DISA, and commercial circuit providers for implementation and troubleshooting
Maintain Information Assurance compliance through IOS upgrades, network device configuration changes, and firewall ACL verification and changes
Support remote sites in restoring network failures
Provide network operations helpdesk support through customer communication, trouble ticketing, and issue resolution

Requirements

What you’ll need

5 years relevant experience with Bachelors in related field; 3 years relevant experience with Masters in related field; 0 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 9 years relevant experience
Security+ or equivalent certification required
Must currently hold and be able to maintain a US Secret security clearance
Experience installing and troubleshooting WAN and LAN network equipment and circuits
Strong experience monitoring, maintaining and troubleshooting ASA firewall ACLs
Ability to troubleshoot network issues at the protocol/packet level using sniffers, protocol analyzers, NetFlow, logging, etc.
Strong knowledge of Cisco Internetworking, including IP addressing, switching, routing, and Cisco IOS
Strong knowledge of IP networking fundamentals, OSI model, and frame/packet structure
Experience in a network operations center environment, including help desk, customer communication, trouble ticketing, and issue resolution
Experience with Department of Defense Security Technical Implementation Guidelines
Experience with network and performance monitoring tools such as SolarWinds
Experience with network security technologies including firewalls, VRFs, and port-security/802.1x
Familiarity with Cisco VoIP, PoE switches, and Call Manager
Experience with NSA Type 1 cryptographic devices and keymat, particularly KG-175D and KG-75
Must be willing to work periodic shifted schedules, including evening, night, and weekend
CCNP Certification or equivalent strongly preferred

Benefits

Comp & perks

Best-in-class medical, dental and vision plan choices
Wellness resources
Employee assistance programs
Savings Plan Options (401(k))
Financial planning tools
Life insurance
Employee discounts
Paid holidays and paid time off
Tuition reimbursement
Early childhood and post-secondary education scholarships
Bonus/other non-recurrent compensation may occasionally be offered for qualified positions
Valuable educational and training programs for continual career growth