Windows Administrator jobs in District of Columbia

Windows Administrator (Annapolis Junction, MD)

Maryland

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Today

Description & Requirements Maximus is seeking a Senior Windows Administrator to join our team. As a Senior Windows Administrator, you will be responsible for overseeing the design, implementation, and maintenance of windows-based servers and systems. Your role will involve managing server infrastructure, troubleshooting issues, and ensuring the reliability and security of the Windows environment. This is an onsite position in Annapolis Junction, MD, requiring five days per week onsite and an act

Full-time

USD 70,000.00 per year

Windows System Administrator, Mid-Level

Washington, District of Columbia

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Today

Clearance Required: Active Top Secret Position Description: Support Naval Research Laboratory Space Systems Development Division (SSDD). The primary objective of the SSDD is to develop command, control, communications, computers, and intelligence, surveillance, and reconnaissance (C4ISR) hardware and software solutions to space, airborne, and ground applications. We are seeking a mid-level Windows Systems Administrator with 5-10 years of experience supporting Department of Defense (DoD) environm

Full-time

USD 85,000.00 - 125,000.00 per year

Windows Systems Administrator

Arlington, Virginia

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Today

Tetrad Digital Integrity (TDI) is a leading-edge cybersecurity firm with a mission to safeguard and protect our customers from increasing threats and vulnerabilities in this digital age. TDI is seeking a Windows Systems Administrator to join the Compartmented Enterprise Services Office (CESO) effort. This program is establishing a modern secure web service (SWS) operation as part of a state-of-the-art, highly automated platform capable of supporting a rapidly expanding customer population. Apply

Full-time

Windows Systems Administrator

Alexandria, Virginia

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Today

Windows Systems Administrator At B&A, we foster and embrace a distinct set of values that we live by and instill in all aspects of our organization: dedication, commitment, partnership, trust, and recognition. We have incorporated these values into successful delivery for our customers since 1988. B&A believes in ensuring its employees feel deeply connected to B&A, recognizing successes and hard work, and providing continuous opportunities to learn and grow. Our people are entrepreneurial think

Full-time

USD 140,000.00 - 200,000.00 per year

Windows Systems Administrator

Arlington, Virginia

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Today

We are currently seeking a Veritas NetBackup Administrator to join the Compartmented Enterprise Services Office (CESO) effort. This program is establishing a modern secure web service (SWS) operation as part of a state-of-the-art, highly automated platform capable of supporting a rapidly expanding customer population. Apply today to become part of the Leidos team that is assisting CESO as they migrate to a high security cloud environment by providing network and communication services, monitorin

Full-time

USD 73,450.00 - 132,775.00 per year

Level 1- Windows Systems Administrator- 53327

Alexandria, Virginia

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Today

Job Title: Level-1 -System Administrator Job Location: Alexandria, VA. (on-site) Clearance Required: Secret Employment Type : Full-Time/Exempt Job Description: Syneren is seeking a talented Level-1 Windows Systems Engineer with Azure experience to join our team. As a Level-1 Windows Systems Engineer with Azure experience, you will work closely with our clients to design, deploy, and maintain Windows-based server and cloud infrastructure solutions. The position will be based in Alexandria, V

Easy Apply

Full-time

Windows Systems Administrator

Chantilly, 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

Windows/Linux Systems Administrator

Maryland

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Today

MANTECH is seeking a motivated, career-driven, and customer-focused Windows/Linux Systems Administrator to join our team in Hanover, MD. You will play a critical role in supporting the enterprise infrastructure capabilities for a global, mission-focused workforce. This position supports the high-visibility Enterprise Infrastructure Services (EIS) organization, responsible for the delivery and security of MPO?s Enterprise Information Technology (EIT), the foundation for enterprise-wide services.

Full-time

Senior Windows System Administrator

Germantown, Maryland

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Today

Overview Edgewater Federal Solutions is currently seeking a cleared Windows Server System Administrator to provide support to the DOE Office of Environment, Health, Safety and Security (EHSS) contract located in Germantown, MD. The position has a focus on Windows Server system administration. Opportunities to be involved in other technologies are available. You will be part of a tenured and nurturing team to further develop your technical skills while supporting the security of the nation. This

Full-time

USD 100,000.00 - 120,000.00 per year

Senior Windows Administrator

Remote or Roanoke, Virginia

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Today

Overview Empower AI is AI for government. Empower AI gives federal agency leaders the tools to elevate the potential of their workforce with a direct path for meaningful transformation. Headquartered in Reston, Va., Empower AI leverages three decades of experience solving complex challenges in Health, Defense, and Civilian missions. Our proven Empower AI Platform provides a practical, sustainable path for clients to achieve transformation that is true to who they are, what they do, how they wo

Full-time

USD 87,320.00 per year

Senior Windows System Administrator

Annapolis, Maryland

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Today

Belay Technologies has been voted Baltimore Business Journal's (BBJ) Best Places to Work 2026! Belay Technologies is seeking a Senior Windows System Administrator to join a high-performing Agile team operating within the Scaled Agile Framework (SAFe) in support of a complex, fast-paced program. In this role, the selected candidate will provide daily systems administration and operations and maintenance support across multiple systems with a broad geographic footprint. Key responsibilities includ

Full-time

USD 164,000.00 - 200,000.00 per year

NCIS Windows Systems Administrator | Active Top Secret clearance

Quantico, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Microsoft Windows Server, Mobile Device Management (MDM), System Administration, Windows System Administration Certifications: Security+ CE - CompTIA - CompTIA Experience: 5 + years of related experience ship Required: Yes Job Description: Transform

Full-time

USD 93,662.00 - 108,100.00 per year

Sr. Windows Systems Administrator TS/SCI Poly

Annapolis, Maryland

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Today

Senior Windows System Administrator; requires TS/SCI Polygraph up front. Leidos has a new and exciting opportunity for a Senior Windows System Administrator in our Intel Sector's Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off,

Full-time

USD 116,350.00 - 210,325.00 per year

Linux/Windows System Administrator (TS/SCI w/ Poly)

Annapolis, Maryland

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Today

In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what's possible. Job Description: Parsons is looking for a talented and fully cleared Systems Administra

Full-time

USD 148,300.00 - 266,900.00 per year

Windows System Administrator

Chantilly, Virginia

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Today

Overview Working across the globe, V2X builds smart solutions designed to integrate physical and digital infrastructure from base to battlefield. We bring 120 years of successful mission support to improve security, streamline logistics, and enhance readiness. Aligned around a shared purpose, our $4.5B company and 16,000 people work alongside our clients, here and abroad, to tackle their most complex challenges with integrity, respect, responsibility, and professionalism. We are recruiting for

Full-time

Windows & Linux Systems Administrator

Washington, District of Columbia

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Today

We are seeking a skilled and dependable Systems Administrator to join our team at the mid to senior level. This role carries direct responsibility for managing and maintaining enterprise Windows and Linux server infrastructure, endpoint management systems, and virtualized environments. The ideal candidate brings proven hands-on experience, strong problem-solving instincts, and the technical depth to operate independently while collaborating effectively across teams. Administer and maintain Micro

Full-time

System Administrator 2 - (UNIX, Windows, AWS)

Fort Meade, Maryland

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Today

System Administrator 2 - (UNIX, Windows, AWS) Clearance: TS/SCI - Polygraph required Position ID: 24-0659-SA2 Location: Fort Meade, Maryland Description: Provides support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobil

Full-time

USD 162,000.00 - 198,000.00 per year

System Administrator Level 2 - (Linux, Unix, Windows)

Annapolis, Maryland

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Today

System Administrator Level 2 - (Linux, Unix, Windows) Clearance: TS/SCI - Polygraph required Position ID: 21-11-03-SA2 Location: Annapolis Junction, Maryland Description: Provides support for implementation, troubleshooting and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/netwo

Full-time

USD 154,000.00 - 189,000.00 per year

Systems Administrator, Lead (Linux/Windows)

Arlington, Virginia

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Today

Overview AMERICAN SYSTEMS, a 100% employee-owned federal contracting company, is seeking a Lead Systems Administrator with strong Linux CLI and Windows administration experience to support a Special Access Program in Arlington, VA. This role focuses on owning and optimizing enterprise Linux & Windows infrastructure across multiple datacenters, partnering with cybersecurity and engineering teams, and providing Tier support for systems that cannot fail. Role includes a $5,000 sign-on bonus in

Full-time

USD 150,000.00 per year

Azure and Windows Server Administrator / Secret or Top-Secret Clearance

Washington, District of Columbia

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9d ago

Position Title:Azure andWindows Server Administrator Location: Washington, DC Clearance: Active Secret or Top-Secret Clearance Required Salary: $135K-$140K / Based on Years of Experience Application Deadline:September 30, 2026 To apply,please follow these steps: VisitSelectthe position you are interested inReviewthe job details, then click Apply NowCompleteand submit your application Position Overview IBSS is seeking a Windows Administrator to support a Federal customer's on-premises and Azure-

Full-time

Depends on Experience

Windows Administrator jobs in Washington, DC, USA