Network Administrator – Network Communications 5

Mission Technologies, a division of HII

. Operate and maintain multiple networks across different classification levels .

Posted 10/7/2026full-timeVirginia Beach • Virginia • United StatesSeniorLead💰 $120,757 - $160,000 per yearWebsite

Tech Stack

Tools & technologies

FirewallsiOSSwitchingVoIP

About the role

Key responsibilities & impact

Operate and maintain multiple networks across different classification levels
Ensure continuous network connectivity for customers and sites
Troubleshoot WAN circuits, equipment failures, router and switch configurations, firewall ACLs, VoIP devices, and cryptographic devices
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
Function within the Network Operations and Security Center, which provides network operations helpdesk and connectivity troubleshooting support

Requirements

What you’ll need

15 years relevant experience with Bachelor’s in related field; 13 years relevant experience with Master’s in related field; 10 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 19 years relevant experience
Security+ or equivalent certification required
Must currently hold and be able to maintain a US Top 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 technical network troubleshooting and critical thinking skills
Strong knowledge of Cisco Internetworking, IP addressing, switching, routing, Cisco IOS, and related protocols
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 shifts
CCNP Certification or equivalent strongly preferred
Bachelor’s degree in Computer Science, Information Systems, or related discipline preferred
Capable of climbing ladders and tolerating confined spaces and extreme temperature variances

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
Educational and training programs for continual career growth