Agile Defense
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Government Defense
Senior Network Administrator
Aberdeen Proving Ground, MD, US
Posted on Feb 27, 2026
SeniorOn SiteDigital Transformation
Job Description
At Agile Defense we know that action defines the outcome and new challenges require new solutions. That’s why we always look to the future and embrace change with an unmovable spirit and the courage to build for what comes next.
Our vision is to bring adaptive innovation to support our nation's most important missions through the seamless integration of advanced technologies, elite minds, and unparalleled agility—leveraging a foundation of speed, flexibility, and ingenuity to strengthen and protect our nation’s vital interests.
Requisition #: 1455
Job Title: Network Administrator III | Exempt
Job Title for Careers Page: Network Administrator III
Location: Aberdeen Proving Grounds, MD
Clearance Level: Active DoD – TS / Secret with ability to obtain TS
Required Certification(s):
· CompTIA Security+ CE
· Cisco CCNA within 6 months
SUMMARY
At the direction of Program Leadership, provide network administration and operational support for network infrastructure. Recommend solutions for new equipment, software, network configuration, design, and management to include detail, specification, hardware components, and part numbers. Provide technical support for the operations of a fiber optic and twisted pair-based network infrastructure
JOB DUTIES AND RESPONSIBILITIES
· Installation, Configuration, and Maintenance of the Network
· Expansion, Modification, Integration and Redundancy of the Network
· Diagnostics and Testing of Network using software/hardware tool suites
· Firewall policy Management
· Traffic Analysis: NetFlow, SNMPv3 traps, syslog, wireshark, etc.
· Network problem Analysis, diagnosis and resolution
· Assist with security Audits
QUALIFICATIONS
Required Certifications
· CompTIA Security+CE
· Cisco CCNA within 6 months
Education, Background, and Years of Experience
· 7+ years’ experience in related field
· Cisco ISE subject matter expert
· Install, configure, and maintain L2 and L3 switches, routers, firewalls, and other network devices.
· Knowledge of VLANS, layer 2 switching, LAN Management, and Ports, protocols & services
· Fabricate, test, and install Ethernet cables
· Fortigate, Juniper, Palo Alto, and/or Cisco Firewalls. Fortigate Firewall experience preferred.
· Familiarity with DISA STIG
· Network monitoring applications e.g. Solarwinds
· Familiarity with RADIUS servers, and 802.1x
· Familiarity with VoIP
ADDITIONAL SKILLS & QUALIFICATIONS
Required Skills
· Strong self-starter attitude, team oriented and good communication skills are a must.
· CISCO ISE
Preferred Skills
· Experience with DoD (Army) networks
· HAIPE Inline Network Encryption (TACLANE) management Unix/Linux experience
· PERL/Python Scripting
WORKING CONDITIONS
Environmental Conditions
· Contractor site with 0%-10% travel possible. Possible off-hours work to support releases and outages. General office environment. Work is generally sedentary in
nature but may require standing and walking for up to 10% of the time. The working environment is generally favorable. Lighting and temperature are adequate, and there are no hazardous or unpleasant conditions caused by noise, dust, etc. Work is generally performed within an office environment, with standard office equipment available.
Strength Demands
· Sedentary – 10 lbs. Maximum lifting, occasional lift/carry of small articles. Some occasional walking or standing may be required. Jobs are sedentary if walking and standing are required only occasionally, and all other sedentary criteria are met.
Physical Requirements
· Stand or Sit; Walk; Repetitive Motion; Use Hands / Fingers to Handle or Feel; See
About Agile Defense
"Listen. Think. Innovate."
Our goal is to innovate alongside our customers to transform their operations using IT.
We support significant agency programs and work to partner with our customers to deliver quality and innovative IT solutions with our “Listen. Think. Innovate.” philosophy. Our customers include the US Department of Defense and US civil agencies, including Department of State and the Department of Interior.
Let us know how we can bring our innovation approaches and...
Job overview
Experience level
Senior
Work type
On Site
Department
Digital Transformation
Posted
on Feb 27, 2026
Financials
Type
private
Annual Revenue
--
Market Cap
--
Amount Raised
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