Senior Network Administrator

General Dynamics Information Technology

Network Administrator Senior at GDIT ensuring stability and security of Army enterprise network environments. Collaborating in high-tempo mission operations and mentoring junior staff.

Posted 6/12/2026full-time🇺🇸 United StatesSenior💰 $85,000 - $115,000 per yearWebsite

Tech Stack

Tools & technologies

Cyber SecurityFirewallsSwitching

About the role

Key responsibilities & impact

Ensure stability, security, and efficient operation of Army enterprise network environments within the NETCOM Global Management Team (GMT)
Provide advanced administration, monitoring, configuration, and troubleshooting of critical network infrastructure for the Army Enterprise Network and JRSS environments
Operate effectively within a high‑tempo 24/7/365 mission environment, supporting continuous operations
Lead high‑impact incident response activities and coordinate restoration efforts
Maintain and secure boundary protection systems in accordance with DoD and Army cybersecurity standards
Collaborate with mission partners including Theater Signal Commands, DISA, RCCs, and NECs
Manage routers, firewalls, load balancers, and related network services
Contribute to automation improvements that enhance operational efficiency
Maintain accurate technical documentation and ensure compliance with enterprise security mandates
Apply deep technical knowledge and strong diagnostic skills to support mission‑critical systems
Mentor junior network administrators and support their technical development
Participate in engineering initiatives, enterprise planning sessions, and technical review activities

Requirements

What you’ll need

5 + years of related experience
US Citizenship Required
Technical Training, Certification(s) or Degree
Experience supporting DoDIN‑Army or DoD enterprise networking environments
Mastery of enterprise routing and switching (OSPF, BGP, VRRP/HSRP)
Strong experience with Cisco, Juniper, Palo Alto, or other Army‑utilized platforms
Working knowledge of DISA STIGs, RMF, ACAS, and Army cybersecurity compliance
DoD 8570/8140 certification, such as, CISSP or CASP required
Networking certification such as CCNA, JNCIS, or JNCIA required, (JNCIS-ENT, JNCIP or CCNP preferred)
Ability to support global maintenance windows and after‑hours operational needs
Ability to work onsite or hybrid depending on mission requirements
Capability to operate effectively in a 24/7 mission‑critical environment
Strong troubleshooting, communication, and analytical skills

Benefits

Comp & perks

Comprehensive benefits and wellness packages
401K with company match
Competitive pay and paid time off
Full flex work weeks where possible
Variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave
GDIT Paid Family Leave program provides a total of up to 160 hours of paid leave in a rolling 12 month period for eligible employees
Short and long-term disability benefits
Life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

network administrationnetwork troubleshootingroutingswitchingOSPFBGPVRRPHSRPautomation improvementstechnical documentation

Soft Skills

leadershipcommunicationanalytical skillstroubleshootingmentoringcollaborationoperational efficiencyadaptabilityproblem-solvinghigh-tempo operation

Certifications

DoD 8570/8140CISSPCASPCCNAJNCISJNCIAJNCIS-ENTJNCIPCCNPTechnical Training