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Network Administrator Senior – TS​/SCI

Job in National City, San Diego County, California, 92180, USA
Listing for: General Dynamics Information Technology
Full Time position
Listed on 2026-01-12
Job specializations:
  • IT/Tech
    Cybersecurity, IT Support
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Position: Network Administrator Senior – TS/SCI required

Type of Requisition

Regular

Clearance Level Must Currently Possess

Top Secret/SCI

Clearance Level Must Be Able to Obtain

Top Secret SCI + Polygraph

Public Trust/Other Required

None

Job Family

IT Infrastructure and Operations

Job Qualifications
  • Skills: Active Directory (AD), Microsoft Windows Server, Network Infrastructures
  • Certifications: None
  • Experience: 10 + years of related experience
  • US Citizenship

    Required:

    Yes
Job Description

Network Administrator Senior – TS/SCI required

Advance how our customers operate while you advance your career. Join GDIT as a Network Administrator Senior and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.

MEANINGFUL WORK AND PERSONAL IMPACT

As a Network Administrator Senior, the work you will do at GDIT will be impactful to the mission of Army Intelligence. You will play a crucial role in securing enterprise systems, advancing future capabilities while driving smarter solutions.

  • Lead/Manage/Support: Responsible for the acquisition, installation, maintenance, and usage of the site network administration requirements. This includes studying products to determine those which best meet program needs and assisting in presenting this information to management, resulting in the purchase and installation of hardware, software, and telecommunication equipment.
  • Collaborate: Interact with network services, software systems engineering, and applications development teams to restore service and/or identify and correct core problems. Study and recommend network systems or modifications to improve service and mitigate user issues.
  • Drive: Manage network performance and maintain network security, ensuring that security procedures are implemented and enforced. Responsible for troubleshooting network problems, establishing and implementing network policies, procedures, and standards while ensuring their conformance with the company's objectives.
  • Utilize: Install all network software, evaluate, develop, and maintain telecommunications systems. You will monitor and respond to hardware and software problems using a variety of tools and techniques.
  • Perform administration duties for networking hardware including routers, switches, hubs, gateways, access points, network interface cards, networking cables, network bridges, modems, ISDN adapters, firewalls, and other related network hardware.
  • Possess firm grasp and knowledge of fiber and copper-based Ethernet technologies, capabilities, and cabling for connectivity to local and wide area networks.
  • Provide network troubleshooting and support, including technical support and training to end-users.
  • Administer network security, including the backup of file server data/disks and providing complex server maintenance.
  • Set up new users and delete old users from the network.
  • Troubleshoot and resolve issues with network infrastructure and/or components.
  • Train users on network operations and ensure their understanding of network policies and procedures.
  • Provide support for the acquisition, installation, and maintenance of the company’s local area network.
WHAT YOU’LL NEED TO SUCCEED

Bring your technology expertise and drive for innovation to GDIT. The Network Administrator Senior must have:

  • Education: Bachelor's Degree with 12 years of experience or Master’s Degree with 10 years of experience
  • Experience: 12+ years of related experience
  • Technical skills:
    • Comprehensive knowledge of the principles, methods, and techniques used in network troubleshooting and support.
    • Comprehensive knowledge of routers, switches, patch panels, concentrators, associated terminals, and related network hardware and software.
    • Comprehensive knowledge of desktop operating systems and applications.
  • Security clearance level: TS/SCI
  • Required Certification(s):
    • DoD 8570.01-M IAT Level II/8140 Computing Environment (CE) Certification as determined by the Program Manager is required prior to support on contract.
    • IAT II 8570/8140 Baseline Certification Security+ or equivalent.
    • Computing Environment certification: CCNA or CCNA-Security.
  • Role requirements:
    • On customer site daily support.
    • Candidates must be willing and able to attain a CI Polygraph for certain…
Position Requirements
10+ Years work experience
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