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Fulltime Linux Windows System Administrator Jobs in Reston, VA

Nwis

System Administrator

Sterling, VA

$122K - $253K/yr

Job Title: System Administrator Location:Sterling, VA Clearance:TS/SCI Poly **This position is ... The SysA demonstrates strong Linux/Windows administration experience, including package management ...

Cymertek

Linux System Administrator

Tysons, VA · On-site

Linux System Administrator LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and skilled Linux ...

Cymertek

Linux System Administrator

Reston, VA · On-site

Linux System Administrator LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and skilled Linux ...

Cymertek

Linux System Administrator

Chantilly, VA · On-site

Linux System Administrator LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a dedicated and skilled ...

Peraton

Linux Systems Administrator

Gaithersburg, MD

$112K - $179K/yr

Peraton is seeking an experienced Linux System Administrator to implement and manage a centralized ... Configure and manage firewalls; configure and manage file sharing with Windows systems; and ...

Peraton

Linux Systems Administrator

Gaithersburg, MD · On-site

$112K - $179K/yr

Peraton is seeking an experienced Linux System Administrator to implement and manage a centralized ... Configure and manage firewalls; configure and manage file sharing with Windows systems; and ...

Peraton

Linux Systems Administrator

Gaithersburg, MD · On-site

$112K - $179K/yr

Peraton is seeking an experienced Linux System Administrator to implement and manage a centralized ... Configure and manage firewalls; configure and manage file sharing with Windows systems; and ...

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All JobsFulltime Linux Windows System Administrator JobsFulltime Linux Windows System Administrator Jobs in Reston, VA

Fulltime Linux Windows System Administrator information

See Reston, VA salary details

$56.2K

$99.8K

$135.8K

How much do fulltime linux windows system administrator jobs pay per year?

As of Jul 13, 2026, the average yearly pay for fulltime linux windows system administrator in Reston, VA is $99,829.00, according to ZipRecruiter salary data. Most workers in this role earn between $82,200.00 and $115,000.00 per year, depending on experience, location, and employer.

What is the difference between Fulltime Linux Windows System Administrator vs Network Administrator?

AspectFulltime Linux Windows System AdministratorNetwork Administrator
CertificationsLinux/Windows certifications (e.g., CompTIA Linux+, Microsoft Certified)Network certifications (e.g., Cisco CCNA, CompTIA Network+)
Work EnvironmentServer management, OS configuration, troubleshooting on Linux/Windows serversNetwork infrastructure, routers, switches, firewalls
Primary ResponsibilitiesMaintain OS stability, user management, security patchesDesign, implement, and monitor network systems

While both roles involve IT infrastructure, the Fulltime Linux Windows System Administrator focuses on server and OS management, whereas the Network Administrator specializes in network hardware and connectivity. Both roles require technical certifications and are vital in maintaining organizational IT operations, but they differ in scope and daily tasks.

What are popular job titles related to Fulltime Linux Windows System Administrator jobs in Reston, VA? For Fulltime Linux Windows System Administrator jobs in Reston, VA, the most frequently searched job titles are:
What job categories do people searching Fulltime Linux Windows System Administrator jobs in Reston, VA look for? The top searched job categories for Fulltime Linux Windows System Administrator jobs in Reston, VA are:
What cities near Reston, VA are hiring for Fulltime Linux Windows System Administrator jobs? Cities near Reston, VA with the most Fulltime Linux Windows System Administrator job openings:
Fulltime Linux Windows System Administrator jobs near you
Infographic showing various Fulltime Linux Windows System Administrator job openings in Reston, VA as of July 2026, with employment types broken down into 1% As Needed, 85% Full Time, 11% Part Time, 1% Temporary, and 2% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution, with an average salary of $99,829 per year, or $48 per hour.
NIH - Windows Systems Administrator

NIH - Windows Systems Administrator

cFocus Software Incorporated

Bethesda, MD • Remote

Full-time

Posted 11 days ago

Job description

cFocus Software seeks a Window System Administrator to join our program supporting the National Institutes of Health (NIH). This position is fully remote. This position requires a Public Trust or the ability to obtain a public trust clearance.
Qualifications:
  • Public Trust Clearance
  • B.S. Computer Science, Information Technology, or a related field
  • 5+ years administering enterprise Windows Server environments in a federal or similarly regulated enterprise.
  • Experience with Windows Server 2019/2022, Active Directory, Group Policy, PowerShell, WSUS/SCCM/MECM, Microsoft Defender, DNS, DHCP, PKI, virtualization (VMware/Hyper-V), vulnerability remediation, backup and recovery, and configuration management.
  • Preferred Certifications: Microsoft Certified: Windows Server Hybrid Administrator Associate, Microsoft Certified: Azure Administrator Associate, Security+, CISSP, MCSA/MCSE (legacy), or equivalent.
Duties:
  • Administering and maintaining Windows Server infrastructure in accordance with NIH security baselines.
  • Supporting enterprise vulnerability scanning activities and validating remediation of security findings.
  • Deploying operating system and application patches to reduce cybersecurity risk.
  • Performing Windows system hardening using Microsoft and NIST security best practices.
  • Managing Active Directory, Group Policy Objects (GPOs), DNS, DHCP, file services, and Windows authentication services.
  • Supporting Microsoft Defender, endpoint protection, BitLocker, and other data protection technologies.
  • Remediating findings from vulnerability scanners and coordinating with cybersecurity personnel to close POA&M items.
  • Supporting secure configuration management, change management, and documentation updates.
  • Assisting with disaster recovery, backup validation, and Windows system recovery procedures.
  • Maintaining compliance with FISMA, NIST SP 800-53 Rev. 5, NIH/HHS security policies, and enterprise vulnerability management requirements.

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