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# Network Administrator Senior_TS/SCI with Polygraph

- **Company:** General Dynamics Information Technology
- **Location:** Springfield, VA, United States
- **Experience:** Experienced
- **Salary:** $106,250.0 - $143,750.0
- **Contract:** Permanent contract
- **Skills:** Communications Protocols, CompTIA Security+, Data Transmissions, Virtual Private Networks (VPN), Network Administration, Remote Access Technology, Wide Area Networks, Network Routers, Computer Networking Systems, System Availability, Firewalls (Computer Science), Information Technology, Network Server
- **Published:** September 10, 2026
- **Apply:** https://www.techcareers.com/job.asp?id=3385149961&tx=KP7575FFQ&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

Information Technology (IT) Systems,Network Administration,Network Infrastructures

Certifications:

CompTIA Security+ CE | CompTIA - CompTIA

Experience:

3 + years of related experience, Bring your technology expertise and drive for innovation to GDIT. The Network Administrator Senior must have:

? Education: Technical Training, Certification(s) or Degree

? Experience: 3+ years of related experience

? Technical skills:

 * Must have experience with Intelligence Community customer
 * Must have experience working with mid and senior level government
 * Must have experience supporting classified government networks
 * Certifications in networks highly desired

? Security clearance level: TS/SCI with Polygraph

## Description

As a Network Administrator Senior, the work you'll do at GDIT will be impactful to the mission of our customer. You will play a crucial role in providing network engineering and administration of multiple classified and unclassified networks that connect mission-critical IT systems in support of the customer's global mission operations.

 * Collaborate with other IT system team members and the Government to maintain and enhance mission IT systems
 * Maintain high availability to ensure readiness for 24x7 mission operations
 * Drive innovative solutions to solve challenging network and mission IT system challenges that support mission
 * Analyzes customer requirements and provides technical solutions to a wide range of difficult problems
 * Performs administration, maintenance and upgrade of networks including servers, routers, switches, firewalls, remote access systems, and networks
 * Administers and maintains network integrity and connectivity while ensuring compliance with policies and maintains system backup and recovery capability
 * Coordinates the acquisition of hardware and software as well as subcontractor services as needed
 * Creates plans and configure systems for data communication networks
 * Designs and builds hardware and software components for computer or telecommunications networks
 * Evaluates new communications technologies to enhance capabilities of the network
 * Designs, plans, and builds communications networks. Configures routers, switches, and firewalls for LAN and WAN systems and VPN concentrators with appropriate network engineering and communications protocols. Coordinates LAN/WAN hardware/software improvements and/or enhancements. Monitors networks utilizing industry leading processes, technologies and tools. Provides innovative methods and technical solutions using the engineering design process. Plans implementation of enhancements to LAN/WAN networks. Maintains current knowledge of relevant technology as assigned
 * May coach and provide guidance to less experienced professionals
 * May serve as a team or task lead
 * Participates in special projects as required.


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