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Network System Administration Jobs in Virginia (NOW HIRING)

... for administration, troubleshooting, automation, system analysis, and compliance evidence ... AWS networking, security controls, operating systems, DNS, certificates, and application ...

Senior Network Engineer

Chantilly, VA · On-site

$106K - $145K/yr

Network and Systems Administration Skills: * Expertise in configuring and administering Juniper and/or Cisco networks, including implementation of VPNs and secure tunneling * Hands‑on experience ...

... system administration, database management, backup administration, change configuration and management, policy creation, and certification and accreditation procedures (Senior level position)

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Network System Administration information

Infographic showing various Network System Administration job openings in Virginia as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 13% Part Time, and 3% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution.

Network/System Administrator (Net/Sys Admin) I

Arlington, VA • On-site

General Dynamics Information Technology
IT Services • 10K+ employees

$81K - $109K/yr

Full-time

Medical, Retirement, PTO

This job post has expired today. Applications are no longer accepted.


General Dynamics Information Technology rating

7.8

Company rating: 7.8 out of 10

Based on 63 frontline employees who took The Breakroom Quiz

89th of 226 rated it services


Job description

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REQ#: RQ224687Public Trust: None Requisition Type: Regular Your Impact

Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.

Job Description

The primary function will be to organize, install, and support government organizations computer systems, including local area networks (LANs), wide area networks (WANs), network segments, intranets, and other data communication systems. This will also include helping architect, design and analyze network models. It will require participation in decisions about buying future hardware or software to upgrade organizations infrastructure. This position might be called upon to provide technical support to computer users to help solve users problems. This position will support activities within Special Access Programs (SAPs) supporting Department of Defense (DoD) agencies, such as HQ Air Force, Office of the Secretary of Defense (OSD) and Military Compartments efforts. The position will provide day-to-day support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

Performance shall include:

  • Ability to operate under supervision.

  • Execute day to day management and operations of systems and networks.

  • Manage COTS & GOTS products to collect, display and remediate a variety of automated system security and system operations/performance functions and metrics.

  • Follow Operations and Maintenance (O&M) checklists to maintain the service (daily, weekly, monthly, yearly O&M checklists); build Tactics, Techniques and Processes (TTPs) and Standard Operating Processes (SOPs) associated with service checklists.

  • Operate monitoring tools/capabilities with the enterprise security information and event management (SIEM) and create/tailor complex event alarms/rules and summary reports.

  • Assist in analyzing technical risk, upon request, of emerging cybersecurity tools and processes.

  • Work as part of a security incident response team as needed.

  • Working technical competency in one or more of the following supported platforms: Microsoft Windows Server, Red Hat Enterprise Linux servers, MS Hyper-V/VMWare/ESx/Xen Hypervisors, Enterprise networking/firewalls/intrusion detection/prevention systems, forensic analysis/vulnerability assessment, Group Policy management and configuration, Scripting, BMC Footprints, WSUS, Lumension, Bitlocker, SQL Server 2012, TomCat, IIS, Windows Server 2012r2/2016, Win 10, Red Hat 6.5, Microsoft Office Toolkits, SEIMs, Logrhythm, ACAS/Nessus/SCAP, mandatory/role-based access control concepts (e. g. SE Linux extensions to RHEL, PitBull, AppArmor, and Sentris), video teleconferencing/VOIP, Oracle/MS SQL database security, and Apache/IIS Web server security.

Experience:

  • 1+ years related experience.

  • SAP experience desired .

Education:

  • Bachelors degree in a related area OR Associates degree in a related area + 2 years experience OR equivalent experience (Desired)

Certifications:

  • IAT Level I (Security+ CE, CCNA Security, etc.) - within 6 months of hire

Security Clearance:

  • Required: TS/SCI.

  • Must be able to obtain: TS/SCI with CI poly.

Other Requirements:

  • Thorough knowledge of Microsoft Windows desktop and server operating systems, Microsoft Exchange Server, and as needed RHEL operating systems administration and associated hardware.

  • Working knowledge of CISCO network and switching and virtualization technologies.

  • Working knowledge of Local Area Network (LAN) and Wide Area Network (WAN) technologies and data backup technologies to include communication security (COMSEC) integration.

  • Working knowledge and current experience with PL2 network environments/systems.

  • Must be familiar with DoD policy as it applies to implementing and executing system and network administration.

  • Must be able to regularly lift up to 50 lbs.

GDIT IS YOUR PLACE:

  • 401K with company match

  • Comprehensive health and wellness packages

  • Internal mobility team dedicated to helping you own your career

  • Professional growth opportunities including paid education and certifications

  • Cutting-edge technology you can learn from

  • Rest and recharge with additional paid vacation and holidays

#AirForceSAPopportunities

Work Requirements
Years of Experience

1 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification
Travel Required

10-25%

Citizenship

U.S. Citizenship Required

Salary and Benefit Information

The likely salary range for this position is $81,175 - $109,825. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.
View information about benefits and our total rewards program.

Our Identity Verification Process

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans


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About General Dynamics Information Technology

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GDIT is a global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense, and intelligence community. Its 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. The company operates across 50+ countries worldwide, offering leading capabilities in digital modernization, AI/ML, cloud, cyber, and application development.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Falls Church, VA, US