Jobs2Careers logoHome

System Admin

Dumfries,VA

411 System Admin jobs in Dumfries,VA

Recommended
Apply Directly
Operations System Analyst

SimVentions, Inc - Glassdoor✪ 4.6

Fredericksburg, VA 22405

Urgently Hiring
Recommended
Apply Directly
Network Administrator

Leidos

Lorton, VA 22079

~ 17 min OnsitePaid Time OffRetirement Benefit

  • Bachelors degree and (8)+ years of prior relevant experience or Masters with (6)+ years of prior relevant experience
  • Cisco Certified Network Professional (CCNP)
  • Engineering, Deployment and operations of LAN and WAN Switches, and Firewalls ensuring seamless integration into existing network infrastructure
  • Working knowledge of defense-in-depth principles, network/HW/SW security architecture, network topology, IT device integrity, and common security elements
  • Installs, configures, and maintain equipment including Cisco network and FW gear Cisco 2900, 4500, 9300, 9400, 6800 and Nexus 9000, and Cisco Firepower, ASA.
  • Experience with and proven methods for managing the information security incident lifecycle, including incident response, mitigation, post-action reporting, and mapping a path forward.
  • Network Management experience with Solarwinds, or WhatsUP Gold, NetQoS, NetBrain
  • Cross platform familiarity and experience with VMWARE, Linux, Microsoft Server and AD.
  • Build firewall policy and optimized rule sets for improved efficiency and threat prevention.
  • Deploy new network configuration to meet NIST/FISMA/STIG compliance requirements
  • Support ATO reviews and Audits
  • Ability to obtain DHS EOD SCI
SmartExplore AI is experimental.
View now
New, Posted 17 hours ago
ResumeLibrary
Senior Specialist, Information Security Systems Engineering

L3Harris Technologies

Chantilly, VA 20151

~ 42 min OnsiteBilingual PreferredEducation AssistanceHealth InsurancePaid Time OffRetirement Benefit

  • Bachelor's Degree and minimum 6 years of prior relevant experience.
  • Graduate Degree and a minimum of 4 years of prior related experience.
  • In lieu of a degree, minimum of 10 years of prior related experience.
  • Must have active TS/SCI security clearance.
  • Ability to obtain and maintain Special Access Program (SAP) clearance after hire is required.
  • DoD 8140.03 Level 3 or 4 certification.
  • This position is performed 100% onsite and cannot be performed remotely.
SmartExplore AI is experimental.
View now
New, Posted 5 hours ago
Recommended
Apply Directly
Information Systems Technician

U.S. Navy

Dumfries, VA 22025

Recommended
Apply Directly
Mission Systems Architect

ManTech

Stafford, VA 22554

iHire
HVAC Technician

ABC Imaging

Annandale, VA 22003

New, Posted 19 hours ago
Apply Directly
Federal Lead Systems Architect

Dell

Manassas, VA 20110

~ 26 min Onsite

  • Secret, TS/SCI required
  • Lead Solution Architect
  • On-premise private cloud ecosystem
  • Linux/Windows
  • Storage arrays
  • Software-defined networking
  • Unified communications (voice/video)
  • Infrastructure as Code (IaC)
  • GitOps-driven deployment strategy
  • Bare-metal provisioning platforms like Tinkerbell
  • Secure, and resilient infrastructure
  • Cross Domain Solutions (CDS)
  • Multi-level security enclaves
  • Scaled Agile Framework (SAFe)
  • Experience guiding cross-functional agile teams from architectural design through execution
  • Private Cloud Architecture & Integration: Design and oversee the implementation of a highly available, multi-tenant on-premise private cloud
  • Host enterprise Linux and Windows Server workloads at scale
  • Network Automation & S Architect automated provisioning workflows from bare-metal up to the hypervisor/OS layer using platforms such as Tinkerbell, Canonical MAAS, or similar IaaS provisioning tools
  • GitOps & Infrastructure as Code (IaC): Define, champion, and enforce a Git-centric (GitOps) deployment strategy
  • Infrastructure and OS-level configurations are version-controlled in Git and executed via automated, declarative CI/CD workflows
  • Cross Domain & DoD/IC Security: Architect
SmartExplore AI is experimental.
View now
New, Posted 3 hours ago
Senior Specialist, Information Security Systems Engineering

L3Harris Technologies Careers

Chantilly, VA 20152

Bilingual Preferred
New, Posted 21 hours ago
Apply Directly
HVAC Systems Service Technician– Residential

Total Comfort

Stafford, VA 22554

~ 16 min OnsiteHealth InsurancePaid Time OffRetirement Benefit

  • 2 years of residential HVAC experience
  • EPA certification (or ability to obtain)
  • Valid driver's license & clean driving record
  • Must pass background and drug screening
  • Ability to enter attics, crawlspaces, and lifting heavy equipment
SmartExplore AI is experimental.
View now
iHire
Site Shift Leader Day

Sitemetric

Fredericksburg, VA 22401

$50,000-$55,000/yr

Recent Searches

    Browse Jobs in Top Cities

    Browse Jobs by State

    Browse Jobs by Title

    Post a Job

    About

    Advice

    Contact

    © 2026 Jobs2Careers. All rights reserved.

    Privacy Policy

    Terms of Use

    Your Privacy ChoicesCalifornia Consumer Privacy Act (CCPA) Opt-Out Icon

    Logos provided by Logo.dev

    Jobs2Careers Powered by Talroo

    Privacy Policy, Terms of Use, and Your Privacy Choices

    Browse Jobs in Top Cities

    Browse Jobs by State

    Browse Jobs by Title

    Post a Job

    About

    Advice

    Contact

    © 2026 Jobs2Careers. All rights reserved.

    Privacy Policy

    Terms of Use

    Your Privacy ChoicesCalifornia Consumer Privacy Act (CCPA) Opt-Out Icon

    Logos provided by Logo.dev

    Jobs2Careers Powered by Talroo