principal windows systems administrator jobs

Lorton, Virginia

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Today

Job Title: Windows Systems Administrator Work Location: Hybrid; onsite 2-5 times a week in Lorton, VA (Applicant must be based within a commutable distance (1-2 hours) within the DMV) Alpha Omega is seeking a qualified Windows Systems Administrator in support of our DHS ICE customer. The Windows Systems Administrator will be responsible for the administration, automation, and security of the organization's Windows server and virtual infrastructure. This role requires advanced expertise in Micr

Full-time

USD 70,000.00 - 130,000.00 per year

Windows Systems Administrator

Louisville, Kentucky

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Today

{"description": " What We Need Corpay is currently looking to hire a Windows Systems Administrator within our SVS division. This position is based out of Louisville, KY. The Windows Server Administrator is responsible for participating on a team that administers, maintains and support all Windows Server hardware and Operating Systems. How We Work As a Windows Systems Administrator you will be expected to work out of our Louisville office location. Corpay will set you up for success by providing:

Full-time

Systems Administrator (Windows/Linux)

Charlotte, North Carolina

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Today

Job#: 3032247 Job Description: Position: Systems Administrator (Windows/Linux) Location: Charlotte, NC 4x/week onsite, 1x/week remote Duration: 12+ months Requirements 3-4+ years of experienceLinux/Windows administrationCloud experienceAny cloud service worksScripting experiencePython, PowerShell, Bash or JavaScriptFile transfer protocol knowledgeAS2, SFTP, HTTPS, FTPSWhat software have you used it in?Understanding the on prem version and how that may differ in the cloud Nice-to-Have Cleo Har

Easy Apply

Full-time

Systems Administrator - Linux/Windows

No location provided

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Today

GovCIO is looking for a Systems Administrator to provide on-going support for the administration of the core system applications and perform operational tasks such as monitoring system resources and perform routine maintenance tasks in support of 24x7 life cycle applications to include on-call support. Work location is hybrid with periodic customer site work activities.Must be willing to work nights, have a Security+ certification, and an active Top Secret clearance. Responsibilities Position D

Full-time

USD 75,000.00 - 90,000.00 per year

Windows Linux Systems Administrator - TS/SCI with Polygraph

Fort Belvoir, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux, System Administration, Windows Applications Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: General Dynamics Information Technology (GDIT) is looking for a skille

Full-time

USD 114,750.00 - 155,250.00 per year

Network and Computer Systems Administrator-Windows (2944)

Baltimore, Maryland

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7d ago

{"description": "PSI Pax is an Economically Disadvantaged Woman-Owned Small Business (EDWOSB) Headquartered in Patuxent River, MD. We are recognized as key contributors to our DOD Customer's mission specializing in Information Technology, enterprise resource planning, business and financial management, acquisition, and logistics. PSI Pax is at the forefront of innovation in supporting our DOD customer's complex requirements. We help our customers coordinate services across their enterprises nati

Full-time

Systems Administrator- Windows

Redlands, California

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Today

Overview Support the implementation and ongoing operation of enterprise applications and systems across on-premises and cloud environments. In this role, you will work alongside senior administrators and engineering partners to help maintain reliable services, automate routine operational tasks, and improve monitoring, alerting, and dashboarding. You will provide day-to-day operational support for research and development teams using enterprise and ArcGIS Online technologies while developing yo

Full-time

USD 70,304.00 - 79,040.00 per year

Systems Administrator, Senior (Linux/Windows)

Arlington, Virginia

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Today

Overview AMERICAN SYSTEMS, a 100% employee-owned federal contracting company, is seeking a Senior Systems Administrator with Linux and Windows administration experience to support a Special Access Program, operating in highly secure, complex environments where precision and reliability are essential. This role focuses on owning and optimizing enterprise Linux & Windows infrastructure across multiple datacenters, partnering with cybersecurity and engineering teams, and providing Tier support fo

Full-time

USD 110,800.00 per year

Linux/Windows Senior Systems Administrator

San Diego, California

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Today

Job Description WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreakin

Full-time

USD 81,600.00 - 143,865.00 per year

Windows Administrator (Secret Clearance)

Fort Belvoir, Virginia

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30+d ago

WINDOWS ADMINISTRATOR (SECRET CLEARANCE REQUIRED) Location: Fort Belvoir, VA Work model:Preferred onsite in Fort Belvoir, VA (for mission support), but open to hybrid or fully remote for the right candidate. Employment Type: Direct Hire Compensation: $165-175,000/year OVERVIEW Were hiring a Windows Administrator to support and secure a Windows-based infrastructure that underpins enterprise Identity & Access Management (ICAM) servicesauthentication, authorization, and access. This role focuses o

Easy Apply

Full-time

$175000

Windows System Administrator (Active Top Secret Clearance)

North Charleston, South Carolina

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Today

Support enterprise Windows infrastructure for the Naval Information Warfare Center Atlantic (NIWC Atlantic) Research, Development, Test & Evaluation (RDT&E) network in North Charleston, SC. The Windows Systems Administrator provides on-site administration, sustainment, and Tier support for Microsoft Windows Server environments supporting a U.S. Navy customer. This role focuses on Active Directory, DFS, MECM, and Core Services while ensuring compliance with DoD cybersecurity standards and opera

Full-time

Windows/Linux Server Administrator

Remote

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Yesterday

Seeking an experiencedWindows/Linux Server Administratorto support OS level upgrades, server operations, and troubleshooting in an enterprise environment. Role focuses primarily onWindows Server, with some Linux exposure. Key Responsibilities Support and maintain Windows and Linux servers Perform OS and application upgrades Troubleshoot server, application, and basic network issues Use command line tools (PowerShell, Bash) for administration Participate in scheduled maintenance windows Follow

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Contract, Third Party

Depends on Experience

Windows System Administrator

Chantilly, Virginia

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Today

Job Number: R0236063 Windows System Administrator The Opportunity : Are you looking for an opportunity to combine your technical skills with big picture thinking to make an impact in Booz Allen? You understand your customer's environment and how to develop the right systems for their mission. Your ability to translate real-world needs into technical specifications makes you an integral part of delivering a customer-focused engineering solution. Booz Allen is seeking a skilled Windows System Adm

Full-time

USD 86,800.00 - 198,000.00 per year

Windows / Linux System Administrator

Maryland

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Today

Description & Requirements Maximus is seeking a Windows / Linux System Administrator to manage and support internal-use telephony systems for our Homeland Security customer. This role provides technical leadership for the configuration, maintenance, and troubleshooting of enterprise telephony infrastructure, with responsibilities spanning operating systems, networking, security, and application support. This position is on-site and requires a Secret Clearance. Maximus TCS (Technology and Consul

Full-time

USD 90,000.00 per year

Lead Windows System Administrator

Burlington, New Jersey

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Today

Location: Burlington, NJ Salary: $95,000.00 USD Annually - $120,000.00 USD Annually Description: Our client is currently seeking a Lead Windows System Administrator Burlington, NJ Location: Primarily Remote (with occasional on-site presence ~4 days/month) Employment Type: Full-time Schedule: , with on-call rotation About the Role We are seeking a talented Lead Windows System Administrator to join our infrastructure team. You will play a critical role in managing and advancing Clients Mic

Contract

USD 95,000.00 - 120,000.00 per year

UNIX/Windows System Administrator (Systems Administrator 3) 27215

Loma Linda, California

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10d ago

{"description": "Requisition Number: 27215 Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $88,168.00 - $110,000.00 Security Clearance: TS/SCI Level of Experience: Mid HI This opportunity resides with All-Domain Operations (ADO) , a business group within HII's Mission Technologies division. All-Domain Operations comprises multi-domain operations, platforms and logistics, and intelligence operations. HII designs, develops, integrates and manages the s

Full-time

USD 88,168.00 - 110,000.00 per year

Principal Linux Systems Administrator - Secret

Huntsville, Alabama

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Yesterday

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight acros

Full-time

USD 98,900.00 - 148,300.00 per year

Senior Windows System Administrator

Andover, Massachusetts

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26d ago

Date Posted: 2026-02-26 Country: United States of America Location: US-MA-ANDOVER-AN1 ~ 350 Lowell St ~ AN1 ESSEX BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance Type: Secret - Current Security Clearance Status: Active and existing security clearance required on day 1 At Raytheon, the foundation of everything we do is rooted in ou

Full-time

USD 68,900.00 per year

Classified Windows System Administrator

El Segundo, California

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Today

The Aerospace Corporation is the trusted partner to the nation's space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. When you join our team, you'll be part of a special collection of problem solvers,

Full-time

USD 30.80 - 56.16 per hour

Windows Systems Engineer - TS/SCI w/Polygraph

Chantilly, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Microsoft SQL Database, VMware Clusters, Windows Engineering, Windows System Administration Certifications: None Experience: 15 + years of related experience ship Required: Yes Job Description: At GDIT, people are our diff

Full-time

USD 199,750.00 - 270,250.00 per year

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principal windows systems administrator jobs