Network Administrator Senior_TS/SCI with Polygraph

General Dynamics
United States
Workplace: OnsiteFull timeUSD 106,250 - 143,750 annuallyFunction: IT Operations (Systems/Network Admin)Experience: 3+ yearsSkills: ["Collaboration","Innovation","Problem-solving","Coaching","Leadership"]

Join GDIT as a Senior Network Administrator supporting 24x7 mission operations across multiple classified and unclassified networks. You’ll administer, maintain, and upgrade network infrastructure (routers, switches, firewalls, and remote access), ensure network integrity and backup/recovery, and design LAN/WAN and VPN configurations. Collaborate with IT teams and government stakeholders, monitor performance, and help solve complex network and mission IT challenges, sometimes leading tasks or coaching peers.

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General Dynamics
General Dynamics
3 days ago

Network Administrator Senior_TS/SCI with Polygraph

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Last checked: 4 hours agoStatus: Live

Job Summary

Join GDIT as a Senior Network Administrator supporting 24x7 mission operations across multiple classified and unclassified networks. You’ll administer, maintain, and upgrade network infrastructure (routers, switches, firewalls, and remote access), ensure network integrity and backup/recovery, and design LAN/WAN and VPN configurations. Collaborate with IT teams and government stakeholders, monitor performance, and help solve complex network and mission IT challenges, sometimes leading tasks or coaching peers.
Location: United States
Workplace: Onsite
Employment Type: Full time
Job Function: IT Operations (Systems/Network Admin)
Seniority: Mid level

Key Responsibilities

  • •Administer, maintain, and upgrade networks and ensure compliance with policies.
  • •Maintain high availability for 24x7 mission operations and readiness.
  • •Configure and design LAN/WAN and VPN-related networking components and communications protocols.
  • •Monitor networks using industry-leading processes, technologies, and tools; implement enhancements.
  • •Coordinate hardware/software acquisition and collaborate on special projects, task leadership, and guidance for less experienced professionals.
Travel: Medium travel

Pay and Benefits

Salary: USD 106,250 - 143,750 annually
Perks:Health InsuranceDentalVision401kPaid Leave

Key Requirements

  • •3+ years of related experience in network administration and IT systems.
  • •Active clearance: TS/SCI with Polygraph.
  • •US citizenship required.
  • •Experience supporting classified government networks and working with mid and senior level government personnel.
  • •Technical training, certifications, or a degree; network certifications are highly desired.
Experience:3+ years
Skills:CollaborationInnovationProblem-solvingCoachingLeadership
Tech Stack:Network administrationIT systemsNetwork engineeringRoutersSwitchesFirewallsRemote access systemsVPN concentratorsLANWANLAN/WAN

Eligibility

Nationality:US National
Work Authorization:Authorization required. Sponsorship not provided.
Security Clearance:Top Secret SCI + Polygraph

Company Brief

General Dynamics
Provides IT, systems engineering, cybersecurity, cloud, and mission support services to U.S. federal civilian and defense agencies, delivering large-scale technology solutions and managed services for national security and government operations.
Industry: Defense Technology
Company Size: Enterprise (1,001+ employees)
Growth: Established Company
Headquarters: Tysons / Fairfax, United States
WebsiteLinkedIn