Windows Administrator jobs in District of Columbia

Laurel, Maryland

•

Today

Description Do you thrive in a fast-paced, dynamic classified environment? Do you want to be empowered to take ownership of enterprise active directory domain infrastructure and have a direct impact on the reliability, performance, and security of critically important systems? Are you interested in working with a wide range of technologies, building supervising solutions from the ground up, and helping drive operational excellence across complex infrastructure environments? If so, we're look

Full-time

USD 100,000.00 per year

Senior Windows Systems Administrator

Fort Belvoir, Virginia

•

Today

Leidos is seeking an experienced Senior System Administrator with team leadership and Microsoft Exchange skills to support the DTRA I3TS Infrastructure Services team to support, maintain and optimize critical mission operations across multiple geographic locations. The ideal candidate will be a technical expert responsible for installation, configuration, security, operation, and maintenance of servers, equipment, and software related to Microsoft Windows server and Exchange. Candidates must de

Full-time

USD 92,300.00 - 166,850.00 per year

Windows Linux Systems Administrator - TS/SCI with Polygraph

Fort Belvoir, Virginia

•

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

Classified Windows Systems Administrator

Laurel, Maryland

•

Today

Description Are you an ambitious Systems Administrator with vision? Do you enjoy solving complex Windows problems? If so, we 're looking for someone like you to join our team at APL! We are seeking a dynamic team leader to help us drive efficiency, process improvement, and technologically capable solutions in complex and challenging classified IT environments. Our team is responsible for the vital mission of deploying and maintaining Multi-IS Plans Windows Infrastructure and high performance

Full-time

USD 100,000.00 per year

Windows Systems Administrator

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 / 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

Windows System Administrator

Chantilly, Virginia

•

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 Systems Administrator

Chantilly, Virginia

•

Today

Leidos is seeking a Windows Systems Administrator to join a small but highly impactful team. You will support systems with significant importance to our customer while enjoying flexibility in how the job is done and having the opportunity to expand the breadth of your technical skills. In this role you will support the maintenance of classified Windows systems on a standalone network across CONUS with planned expansion. Responsibilities Configuration of workstations, servers and peripheral devi

Full-time

USD 87,100.00 - 157,450.00 per year

Windows System Administrator

Maryland

•

Today

MANTECH seeks a motivated, career and customer-oriented Windows System Administrator to join our team in Hanover, MD. You will be part of a dedicated team delivering enterprise infrastructure capabilities for a global workforce that supports a wide range of national defense missions. This role directly supports the Enterprise Infrastructure Services (EIS) organization?the foundation of all Enterprise Information Technology (EIT) for MPO. Responsibilities include but are not limited to: Creating

Full-time

Systems Administrator, Senior (Linux/Windows)

Arlington, Virginia

•

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

Windows/Linux Server Administrator

Remote

•

5d ago

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

Easy Apply

Contract, Third Party

Depends on Experience

Microsoft Windows System Administrator

Remote

•

Yesterday

Infinite Solutions Inc. is a California-based Information Technology Solution provider specializing in delivering enterprise technology and digital transformation solutions for public-sector clients since 1997. With deep expertise in systems integration, ERP implementations, data analytics, and modernization, we support mission-critical initiatives for State and local agencies. Our team is known for combining technical excellence with a practical, results-driven approach to solving complex busin

Easy Apply

Third Party, Contract

Depends on Experience

Sr. Systems Administrator/Engineer

Hybrid in Rockville, Maryland

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11d ago

Job Title: Sr. Systems Administrator/Engineer Location: Rockville, MD - 3 days/ week Duration: 6+ Months 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 practices, leveraging virtualization technologies, multi-cloud platforms (AWS/Azure), and AI-powered tools to ensure

Easy Apply

Contract

Depends on Experience

System Infrastructure Engineer (AI Focus)

Hybrid in Washington, District of Columbia

•

4d ago

Hi We do have an urgent requirement for the below position with our direct client, Please submit Resume, Rate and Contact details. Job Title: System Infrastructure Engineer (AI Focus) Location: Washington D.C 20433 (4days Onsite/week) Duration: Long-term JOB DESCRIPTION: We are looking for an AI Engineer with a strong foundation in Python development and system infrastructure (Linux/Windows administration), combined with hands-on experience in AI-driven automation and enterprise integrations.

Easy Apply

Contract

Depends on Experience

CNE Developer (Windows)

Arlington, Virginia

•

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 Software Engineer, Windows/Desktop Applications - Washington, DC, USA

Washington, District of Columbia

•

Today

Mission The mission of Speechify is to make sure that reading is never a barrier to learning. Over 50 million people use Speechify's text-to-speech products to turn whatever they're reading - PDFs, books, Google Docs, news articles, websites - into audio, so they can read faster, read more, and remember more. Speechify's text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and

Full-time

USD 140,000.00 - 200,000.00 per year

Senior Software Engineer, Windows/Desktop Applications - Alexandria, VA, USA

Alexandria, Virginia

•

Today

Full-time

USD 140,000.00 - 200,000.00 per year

Senior Software Engineer, Windows/Desktop Applications - Arlington, VA, USA

Arlington, Virginia

•

Today

Full-time

USD 140,000.00 - 200,000.00 per year

Senior Software Engineer, Windows/Desktop Applications - College Park, MD, USA

College Park, Maryland

•

Today

Full-time

USD 140,000.00 - 200,000.00 per year

Army Research Laboratory (ARL) Information Technology (IT) Modernization Opportunities

Adelphi, Maryland

•

Today

Job ID: 2611988 Location: Adelphi, MD, US Date Posted: 2026-04-29 Category: Administration Subcategory: Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: TS/SCI 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 to support the full range of Enterprise IT servi

Full-time

USD 80,001.00 - 120,000.00 per year

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Windows Administrator jobs in Washington, DC, USA