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Reston, Virginia

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Today

Position Overview We are seeking a Senior Infrastructure Engineer to support and operate mission-critical, enclave-based environments across on-premises VMware infrastructure and AWS cloud. This role sits at the center of a high-security, high-availability ecosystem, supporting systems where downtime has real operational impact. You will be responsible for owning, stabilizing, and improving a complex hybrid environment consisting of both legacy and modern platforms. This is not a passive support

Full-time

USD 116,350.00 - 210,325.00 per year

Linux/Windows Systems Administrator

Manassas, Virginia

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Today

Job Description WHAT WE'RE DOING At Lockheed Martin Rotary and Mission Systems, we are inspired by innovation and integrity. We believe that by applying the highest standards of business ethics and creative thinking, everything is within our reach - and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training and education. Come and experience your future! THE WORK The Manassas Systems Administrator team is seeking to hire a full time Sr. Linux/Windows Systems Administr

Full-time

USD 81,600.00 - 143,865.00 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

Senior Systems Administrator/Engineer - Windows

Rockville, Maryland

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Today

Software Guidance & Assistance, Inc., (SGA), is searching for a Senior Systems Administrator/Engineer - Windows for a CONTRACT assignment with one of our premier Regulatory clients in Rockville, MD or Tysons, VA. The Senior Systems Administrator/Engineer works under minimal supervision to design, implement, and maintain enterprise Windows infrastructure across hybrid cloud environments and on-premises data centers. This role combines traditional systems administration with modern DevOps prac

Contract

USD 85.71 - 87.00 per hour

Systems Administrator (Windows)

Remote or Sterling, Virginia

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Today

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

Full-time

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 System Administrator (Onsite - TS/SCI Clearance Required)

Dulles, Virginia

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15d ago

Date Posted: 2026-02-13 Country: United States of America Location: US-VA-DULLES-770 ~ 22270 Pacific Blvd ~ BLDG 70 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: TS/SCI with Polygraph Security Clearance Status: Active and existing security clearance required on day 1 RTX Corporation is an Aerospace and Defense company that prov

Full-time

USD 75,800.00 per year

Windows Administrator (Secret Clearance)

Fort Belvoir, Virginia

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20d 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 Administrator

Arlington, Virginia

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Today

Job#: 3028204 Job Description: Windows Administrator Location: Arlington, Virginia (Remote) Employment Type: Contract Role Overview We are seeking an experienced Windows Administrator to support and maintain Windows-based infrastructure that enables enterprise Identity, Credential, and Access Management (ICAM) services. This role focuses on secure Windows Server operations, Active Directory, automation, and compliance to support authentication, authorization, and identity services across th

Easy Apply

Full-time

USD 65.00 - 75.00 per hour

Windows System Administrator

Falls Church, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Disaster Recovery (DR), Microsoft Windows, Monitoring Tools, Problem Resolution, System Administration Certifications: None Experience: 3 + years of related experience ship Required: Yes Job Description: We are seeking an experienced Senior Windows System Admini

Full-time

USD 102,000.00 - 138,000.00 per year

Windows Systems Engineer

Herndon, Virginia

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Today

Overview SilverEdge is a premier provider of innovative cyber, software, and intelligence solutions, addressing mission-critical challenges for the Department of Defense (DoD), Intelligence Community (IC), and beyond. We are dedicated to delivering impactful results to meet mission goals through cutting-edge technology and expertise. We are seeking a Windows Systems Engineer to join our dynamic team. This individual will play a pivotal role in developing innovative and effective solutions for o

Full-time

Windows System Administrator

Suitland-Silver Hill, Maryland

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Today

Windows Systems Administrator Location: Suitland, MD Clearance Required: Active TS/SCI Leidos is seeking an experienced Windows Systems Administrator to support critical mission operations at the Office of Naval Intelligence in Suitland, MD. This role is more than just IT-it's about enabling operations that shape national security. If you're ready to work with cutting-edge systems and make a real-world difference, we want you on our team. Primary Responsibilities: Administer MS Exchange, Data

Full-time

USD 92,300.00 - 166,850.00 per year

Windows 11 Systems Engineer

Fort Belvoir, Virginia

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Today

Suvi is looking for a Windows 11 Systems Engineer to work in Fort Belvoir, VA. The Windows 11 Systems Engineer will play a crucial role in supporting the Army G-6 Special Programs Office's transition to the Windows 11 operating system across the Special Access Program (SAP) community. You will be responsible for designing, building, testing and implementing Windows 11 solutions in an enterprise environment, ensuring a robust, secure and reliable computing environment. You will collaborate with g

Full-time

Systems Engineer- Windows

Hybrid in Washington, District of Columbia

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5d ago

Systems Engineer- Windows Washington DC (3 Days hybrid) Windows Systems Engineering background, including the ability to interpret and apply Standard Configuration Baselines (SCB) for Windows and IIS across application servers in a consistent, methodical, and repeatable way. The role also requires coordinating with application teams to troubleshoot and resolve related issues. Advanced proficiency in MECM/SCCM administration, including: Automation and orchestration using PowerShell scriptingDevel

Easy Apply

Contract, Third Party

Depends on Experience

Systems Engineer - Linux / Windows

Hybrid in Merrifield, Virginia

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4d ago

Senior System Engineer, Linux/Windows Direct Hire First 6 months on-site, Fairfax, VA then hybrid 4 days a week on-site thereafter Salary: $115,000 to $120,000 annually, plus benefits Federal End-Client: US Citizenship required, eligible for Public Trust clearance System One IT is staffing a direct hire opening for a Linux/Windows Systems Engineer with a respected systems integrator, supporting a federal end customer in Fairfax, VA. This is an on-site position for the first 6 months, with 4 da

Easy Apply

Full-time

$120000

IT, Systems Engineer 3 - Windows

Remote

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Today

Working at Yale means contributing to a better tomorrow. Whether you are a current resident of our New Haven-based community, eligible for opportunities through the New Haven Hiring Initiative, or a newcomer, interested in exploring all that Yale has to offer, your talents and contributions are welcome. Discover your opportunities at Yale! Overview Automation of systems administration tasks using PowerShell, SCCM, and other tools for integration with automation utilities. Development of Infras

Full-time

USD 93,800.00 - 140,675.00 per year

Senior Systems Administrator (Linux/Windows) - Top Secret Clearance w/SCI eligibility required

Arlington, Virginia

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Today

Overview At AMERICAN SYSTEMS, your technical expertise directly supports national security and mission-critical systems. As an employee-owned federal government contractor, we deliver trusted solutions in support of the nation's highest priorities. We are seeking a Senior Systems Administrator 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 Windows and Linu

Full-time

USD 108,100.00 per year

Support the Army Research Laboratory (ARL) Information Technology (IT) Modernization Program

Adelphi, Maryland

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Today

Job ID: T2506061-OTHLOC-036 Location: Adelphi, MD, US Date Posted: 2026-03-05 Category: Subcategory: Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: Top Secret Potential for Remote Work: ORA_ON_SITE Description ? SAIC is seeking incumbents and external talent to join the Army Research Laboratory (ARL) Information Technology (IT) Modernization program and support the full range of Enterprise IT se

Full-time

USD 80,001.00 - 120,000.00 per year

CNE Developer (Windows)

Arlington, Virginia

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Today

M9 Solutions is dedicated to providing IT services and solutions to the Federal Government by mobilizing the right people, skills, clearance levels, and technologies to help organizations who desire improved performance and modern, sustainable change. M9 has provided quality IT services and support to more than 30 Federal Agencies and multiple commercial customers nationwide. Our capabilities include digital transformation, software development, cloud migration, applications & infrastructure, cy

Full-time

USD 60,000.00 per year

Senior Windows System Engineer

Washington, District of Columbia

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Today

Job ID: 2611218 Location: Washington, DC, US Date Posted: 2026-04-08 Category: Information Technology Subcategory: IT Systems Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Public Trust Potential for Remote Work: ORA_HYBRID Description SAIC is seeking an experienced Senior Systems Engineer with strong expertise in Microsoft technologies to support the Pension Benefit Guaranty Corporation (PBGC) in Washing

Full-time

USD 120,001.00 - 160,000.00 per year

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