Systems Administrator jobs in District of Columbia

Suitland-Silver Hill, Maryland

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Today

Job ID: 2618123 Location: Suitland, MD, US Date Posted: 2026-10-19 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: TS.SCI_wPoly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_ON_SITE Description ?Varen, an SAIC company is seeking an experienced Systems Administrator to join out team. This position in located in Suitland, MD and requires an active TS/SCI with polygraph

Full-time

USD 160,001.00 - 200,000.00 per year

Systems Administrator - OMS

Arlington, Virginia

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Today

Job ID: 2617428 Location: Arlington, VA, US Date Posted: 2026-09-29 Category: Information Technology Subcategory: IT Sys Integration Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: TS.SCI Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_ON_SITE Description Team SAIC is currently seeking a motivated and experienced Organizational Messaging System (OMS) System Administrator to join our team at the Pentagon in Arlingt

Full-time

USD 40,001.00 - 80,000.00 per year

Classified Systems Administrator, IV (DC)

Hybrid in Washington, District of Columbia

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Today

Job Type: Regular Classified Systems Administrator, IV Overview of RAND The RAND Corporation is a research organization that develops solutions to public policy challenges to help make communities throughout the world safer and more secure, healthier and more prosperous. RAND's research and analysis address issues that impact people everywhere, including security, health, education, sustainability, growth, and development. Headquartered in Santa Monica, California, RAND has approximately 1,700

Full-time

USD 120,900.00 - 184,500.00 per year

Systems Administrator

Washington, District of Columbia

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Today

Job Title: Systems Administrator Location: 4 days onsite in Washington, DC (1 day remote; can be any day they want except Friday) Clearance Required: Top Secret Direct Hire Must have an active Top Secret clearance; Interim Top Secret clearance is sufficient as well 4 days a week on-site in DC; candidate can choose the telework day, but it can't be Friday Must be independent and a self-starter who can think 1 or 2 steps ahead; proactive, not reactive; this individual will be their sole Sys A

Full-time

Systems Administrator

Springfield, Virginia

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Today

Job Title: Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * The Opportunity: Responsible for the administration, operation, troubleshooting, and security of IT infrastructure supporting containerized applications. This includes container runtimes, orchestration platforms, cluster networking, persistent storage, and related secur

Full-time

USD 75,200.00 - 158,100.00 per year

Systems Administrator

Maryland

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Today

Job Number: R0248337 Systems Administrator The Opportunity: Your combination of people skills and system administrator expertise makes you the team hero, solving one problem after another. As a lead Systems Administrator on our team, you'll guide your team as it provides insights through monitoring and performance management. Your system administration expertise will be vital as you evaluate opportunities for improvement in a critical network. You'll help your team better understand the networ

Full-time

USD 99,000.00 - 225,000.00 per year

Sr. Systems Administrator

Washington, District of Columbia

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Today

Residency All applicants must currently reside in the United States Overview BigBear.ai is seeking a BigBear.ai is seeking a Senior Systems Administrator to support the Defense Intelligence Agency (DIA). You will be joining our amazing BigBear.ai team for immediate systems administrator support to legacy and existing systems. Our dream candidate will have some Oracle experience to facilitate our successor system to integrate with older legacy systems so that both systems can co-exist. This po

Full-time

Senior Systems Administrator

Fort Meade, Maryland

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Today

Job Number: R0250994 Systems Administrator, Senior The Opportunity: Your combination of people skills and technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting satellite communications (SATCOM) systems? We're looking for a Windows systems administrator to help us secure SATCOM systems and deploy networking solutions throughout the SATCOM community to directly support warfighters every day. As a sy

Full-time

USD 77,600.00 - 176,000.00 per year

Windows Infrastructure / Systems Administrator

Bethesda, Maryland

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Today

Job Title: Windows Infrastructure / Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required: None Type of Travel: * * * The Opportunity: Support NSWC Carderock by maintaining their Microsoft Windows infrastructure. Ensure combat readiness through the cutting edge application of technology. Responsibilities: MECM Infrastructure: Architect and maintain the MECM hier

Full-time

USD 86,600.00 - 181,800.00 per year

Mid Systems Administrator

Fort Meade, Maryland

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Today

Job Number: R0250995 Systems Administrator, Mid The Opportunity: Your combination of people skills and technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting satellite communications (SATCOM) systems? We're looking for a Windows systems administrator to help us secure SATCOM systems and deploy networking solutions throughout the SATCOM community to directly support warfighters every day. As a syste

Full-time

USD 61,900.00 - 141,000.00 per year

Senior Classified Systems Administrator

McLean, Virginia

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Today

At MITRE, your passion fuels work that impacts our nation and improves lives. This is where your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We're a nonprofit engineering, applied research, and advanced technology organization working in the public interest. With objectivity and integrity at our core, we lead federally funded research and development centers for U.S. government agencies - collaborating with industry and academia to deliver in

Full-time

USD 129,200.00 - 161,500.00 per year

Systems Administrator Intern

Hybrid in Maryland

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Today

Job Number: R0249565 Systems Administrator Intern The Opportunity: Organize and direct the configuration and operation of information management systems. Provide day-to-day system administration, including system and resource optimization, and user assistance. C ond uct capacity and performance analysis and provide system configuration change and upgrade recommendations. Increase system administrator efficiency and accuracy via the use of automated tools and scripts, develop system administrator

Full-time

USD 52,900.00 - 108,000.00 per year

Systems Administrator

Fort Belvoir, Virginia

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Today

Job Title: Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity: We are seeking a highly capable IT Infrastructure professional to join our team supporting a mission-critical customer program. This is an opportunity to work in a dynamic environment where reliable, secure, and resilient infrastructure is essentia

Full-time

USD 86,600.00 - 181,800.00 per year

Systems Administrator, Journeyman

Fort Meade, Maryland

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Today

Overview The Work The Systems Administrator, Journeyman will assist in local and remote Linux and Windows systems administration, front-end and back-end application support, technical analysis, and problem-solving in a highly collaborative environment. This position will play a critical role in defining and optimizing system processes, ensuring system security, and maintaining system readiness in alignment of our clients standards. This position aligns with Cayuse's core values of Innovation, E

Full-time

DevSecOps Systems Administrator

Reston, Virginia

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Today

Job Title: DevSecOps Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * Would you like to be involved in modernizing and maintaining a critical DoD system? Join our team as a Systems Administrator! You will get to use your technical skills to implement and maintain the latest version of our financial system on a more modern tec

Full-time

USD 86,600.00 - 181,800.00 per year

Senior Network and Computer Systems Administrator

Arlington, Virginia

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Today

Overview DecisionPoint Corporation is seeking an experienced Senior Network and Computer Systems Administrator to support the Department of Homeland Security (DHS), Cybersecurity and Infrastructure Security Agency (CISA), Critical Infrastructure Information Sharing Environment (CI-ISE) and Homeland Security Information Network-Critical Infrastructure (HSIN-CI) Program Support Services. The Senior Network and Computer Systems Administrator will provide systems engineering and infrastructure exper

Full-time

Cloud Systems Administrator

Herndon, Virginia

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Today

Job Title: Cloud Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * The Opportunity: Serve as a Cloud Systems Administrator supporting our National Security Mission. You will oversee and provide system administration, integration, maintenance and customer support on the customer's Enterprise Development, Test, and Production s

Full-time

USD 86,600.00 - 181,800.00 per year

Systems Administrator, SME

Fort Meade, Maryland

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Today

Overview The Work The Systems Administrator, SME will be administering, optimizing, and troubleshooting computer systems, including Windows and UNIX systems (Linux or Solaris), ensuring optimal performance and reliability. You will be responsible for leading initiatives, collaborating with vendors, overseeing system requirements for multiple projects, and ensuring compliance with client guidelines. This position aligns with Cayuse's core values of Innovation, Excellence, Collaboration, Adaptabi

Full-time

Systems Administrator

Sterling, Virginia

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Today

Job Title: Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity CACI is seeking a Classified Systems Administrator to support and maintain mission-critical classified information systems in a secure environment. This role combines systems engineering, systems administration, cybersecurity, virtua

Full-time

USD 90,300.00 - 189,600.00 per year

Tier 2 Systems Administrator

Springfield, Virginia

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Today

Job Title: Tier 2 Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * The Opportunity CACI is seeking an experienced, hands-on Tier 2 Systems Administrator to support mission-critical IT infrastructure and applications in a secure, 247 operational environment. This position serves as a technical escalation point for

Full-time

USD 86,600.00 - 181,800.00 per year

Systems Administrator jobs in Washington, DC, USA