Network Administrator Intermediate with Security Clearance

apartmentTEKsystems c/o Allegis Group placeFort Belvoir calendar_month 
Title: Network Administrator
Location: Fort Belvoir, Virginia (FULLY ON-SITE)
Clearance Required: TS/SCI
Certification Required: Security+ Required Skills:
  • BS degree and 4+ years of prior relevant experience in a network operations, help desk, or IT support role or Masters degree with 2+ years of prior relevant experience. Specific experience, education and training may be considered in lieu of degree.
  • Familiarity with monitoring tools (e.g., SolarWinds, Nagios, Splunk, or similar).
  • Understanding of TCP/IP, DNS, DHCP, VPNs, firewalls, and network protocols. Job Description:
The ideal candidate will be detail-oriented and proactive Network Operations Center (NOC) Technician to support mission-critical federal IT infrastructure. You will monitor, analyze, troubleshoot, and escalate incidents within federal networks and systems to ensure optimal performance and continuous availability. This role is part of a 24/7/365 operations environment and may require shift work, including nights, weekends, and holidays. Primary focus will be on, handling internal projects for operations, supporting driving time-sensitive initiatives, supports ITIL service area activities (problem management, incident management, service request fulfillment, etc.) and specific tasks to a successful conclusion, operations management, configuration/change management, service level agreements (SLA). Primary Responsibilities:
  • Monitor and assess federal network infrastructure, systems, and applications using enterprise monitoring tools.
-Identify, assess, and respond to real-time network and system issues, ensuring timely resolution or proper escalation.
  • Perform Tier 1 and Tier 2 troubleshooting for hardware, software, and connectivity issues.
  • Escalate to senior engineering staff if issue is not resolved.
  • Document and execute incidents, changes, and resolutions accurately in ticketing systems (e.g., ServiceNow, Remedy).
  • Collaborate with federal and contractor teams including network engineers, cybersecurity analysts, and system administrators.
  • Execute standard operating procedures and provide input to enhance operational documentation.
  • Support compliance with federal IT security policies and incident response protocols.
  • Participate in scheduled maintenance windows and emergency outages as needed.
  • Maintain situational awareness of the health of IT infrastructure and provide regular status reports. • This position requires an active DoD Clearance (Secret, Top Secret, Top Secret/SCI) or the ability to be obtain an (Interim Secret, Interim Top Secret)
  • Because an active or interim DoD clearance is required, U.S. Citizenship is required o Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
  • Medical, dental & vision
  • Critical Illness, Accident, and Hospital
  • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
  • Life Insurance (Voluntary Life & AD&D for the employee and dependents)
  • Short and long-term disability
  • Health Spending Account (HSA)
  • Transportation benefits
  • Employee Assistance Program
  • Time Off/Leave (PTO, Vacation or Sick Leave)
apartmentTEKsystems c/o Allegis GroupplaceFort Belvoir
Job Description The client is seeking an Network Administrator in Fort Belvoir, VA to support large-scale migration and operations on a large, high-profile DOD contract. The I3TS program provides enterprise-wide IT support to enable DTRA’s Information...
apartmentEverforthplaceAlexandria, 9 mi from Fort Belvoir
Job #: 3046673 Apex Systems is seeking a Sr. Network Administrator to join one of our government clients in Alexandria, VA. Project Details / Mission Supported: Join our team to maintain and enhance secure, reliable, and high‑performance network...
apartmentFull Visibility LLCplaceQuantico (VA), 15 mi from Fort Belvoir
Full Visibility LLC | Full time Senior Network Administrator Quantico, United States | Posted on 08/19/2026 I'm interested Share this job with your network  •  * * * * * * Job listing  •  Job details Job Information  •  Industry IT Services  •  Date Opened...