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Classified Windows Systems Administrator

Laurel, Maryland

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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

Network and Computer Systems Administrator-Windows (2944)

Baltimore, Maryland

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Today

{"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, 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

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

Systems Administrator

Maryland

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Today

Job Number: R0238025 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 77,600.00 - 176,000.00 per year

Sr. Systems Administrator/Engineer

Hybrid in Rockville, Maryland

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5d 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

Systems Network Administrator (SNA-2)

Laurel, Maryland

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Today

Systems Network Administrator (TS/SCI w/ Poly) Leidos - National Security Sector | Cyber & Analytics Business Area (CABA) Leidos is seeking a Systems Network Administrator / MIM Administrator (SME) to join our National Security Sector's Cyber & Analytics Business Area (CABA). This team is at the forefront of Security Engineering, Computer Network Operations (CNO), Mission Software, SIGINT, and advanced analytics, delivering mission-critical capabilities that directly support national security.

Full-time

USD 92,300.00 - 166,850.00 per year

Systems Administrator 3

Bethesda, Maryland

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Today

Requisition ID: 2500Standard Title: Systems AdministratorRequired Security Clearance: Top Secret/SCILocation: Bethesda, MDWork Type: On-SiteShift: FirstReferral Eligibility: EligibleU.S. Citizenship Required? Yes Pay Range $151,903.55 - $172,157.35 Annually Position Summary Support the OSINT Integration Center under the DOMEX Technology Platform contract as a Systems Administrator 3 focused on Linux and Windows systems administration, performance optimization, and user support. Essential Dutie

Full-time

USD 151,903.55 - 172,157.35 per year

Systems Administrator 4

Bethesda, Maryland

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Today

Requisition ID: 2499Standard Title: Senior Systems AdministratorRequired Security Clearance: Top Secret/SCILocation: Bethesda, MDWork Type: On-SiteShift: FirstReferral Eligibility: EligibleU.S. Citizenship Required? Yes Pay Range $187,181.44 - $212,138.97 Annually Position Summary Support the OSINT Integration Center under the DOMEX Technology Platform contract as a Systems Administrator 4 focused on Linux and Windows systems administration, performance optimization, and user support. Essentia

Full-time

USD 187,181.44 - 212,138.97 per year

Systems Administrator 2

Bethesda, Maryland

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Today

Requisition ID: 2501Standard Title: Junior Systems AdministratorRequired Security Clearance: Top Secret/SCILocation: Bethesda, MDWork Type: On-SiteShift: FirstReferral Eligibility: EligibleU.S. Citizenship Required? Yes Pay Range $127,508.29 - $144,509.40 Annually Position Summary Support the OSINT Integration Center under the DOMEX Technology Platform contract as a Systems Administrator 2 focused on Linux and Windows systems administration, performance optimization, and user support. Essentia

Full-time

USD 127,508.29 - 144,509.40 per year

Windows Server Admin (systems integrator and systems administrator)

Washington, District of Columbia

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5d ago

Job Title:Windows Server Admin (systems integrator and systems administrator) Duration: 6 Months Contract with high possibility of extension Location: Washington, DC 20590 The candidate will support implementation and design services for Active Directory and Deployment Services, identity, and access management, providing deep subject matter expertise across Entra and Intune. The candidate will provide support for Windows-based systems across the enterprises, which spans across on-premises and cl

Easy Apply

Contract

$70 - $75

Senior Systems Administrator/Engineer

Rockville, Maryland

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Today

Description: Hybrid 3 days onsite / 2 days remote in Rockville, MD Our client seeks a Senior Systems Administrator/Engineer to design, implement, and maintain enterprise Windows infrastructure across hybrid cloud environments and on-premises data centers. The role blends systems administration with DevOps practices, spanning virtualization, multi-cloud platforms, and AI-powered tooling to support operational excellence. The engineer will lead automation, monitoring, and security initiatives wh

Contract

Systems Administrator (All Levels) - TS/SCI w/ FSP

Linthicum Heights, Maryland

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Yesterday

Job#: 3026290 Job Description: Systems Administrator (All Levels) - TS/SCI w/ Full Scope Polygraph (FSP) Location: Linthicum, MD / Annapolis Junction, MD Work Model: 100% On-Site (classified environment; not remote) Clearance: Active TS/SCI with Full Scope Polygraph (FSP) required (must be active/current) Employment Type: Contract We're seeking Systems Administrators (multiple levels) to support mission-critical classified environments for a large DoD integrator. You'll help design, deploy

Easy Apply

Full-time

Senior Systems & Monitoring Administrator

Laurel, Maryland

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Today

Description Do you thrive in a fast-paced, dynamic classified environment? Do you want to be empowered to take ownership of enterprise monitoring architecture and have a direct impact on the reliability, performance, and security of mission-critical 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 looking for someone lik

Full-time

USD 100,000.00 per year

Linux Server Systems Administrator

Bethesda, Maryland

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Today

Leidos is looking to fill a Linux Server Systems Administrator position to support the National Digital Exploitation & OSINT Center (NDOC). This role requires an individual that has technical experience with administering Linux servers within a within a physical and virtual environment. This role is responsible for interacting with administrators to handle service inquiries and problems. Duties include examining customer problems and implementing appropriate corrective action to initiate a repai

Full-time

USD 92,300.00 - 166,850.00 per year

Systems Administrator

Annapolis, Maryland

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Today

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company within global Accenture. Recognized as a Glassdoor Top 100 Best Place to

Full-time

USD 111,900.00 - 141,300.00 per year

Systems Administrator 3

Hybrid in Linthicum Heights, Maryland

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5d ago

Job Description Northrop Grumman Mission Systems is seeking a Windows Systems Administrator to join its Classified Solutions team in Linthicum, MD. Please note that the selected candidate will be required to work on-site, full-time at our Linthicum, MD campus - this is not a remote work opportunity. Clearance Type: Secret Work Shift: 1st Shift (9/80A) Responsibilities will include but not be limited to the following: Perform as a Windows/VMware systems administrator. Experience operating unde

Easy Apply

Full-time, Contract

Senior Cloud Systems Administrator

Upper Marlboro, Maryland

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Today

Job ID: 2611897 Location: Upper Marlboro, MD, US Date Posted: 2026-04-27 Category: Information Technology Subcategory: Cloud Comp Engr 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 a highly motivated Senior Cloud Systems Administrator to join our expanding, multi-disciplined team of professionals at our Identity and Data Sciences Labor

Full-time

USD 80,001.00 - 120,000.00 per year

Senior Systems Administrator

Springfield, Virginia

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Today

Job ID: 2610005 Location: Springfield, VA, US Date Posted: 2026-03-09 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: TS.SCI Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: ORA_ON_SITE Description SAIC is seeking a Senior Systems Administrator to support our government customer in Springfield, VA. Duties may include: Design, deploy, configure, secure, monitor,

Full-time

Junior Systems Administrator/System Engineer

Annapolis, Maryland

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Today

Junior Systems Administrator/System Engineer Leidos has a new and exciting opportunity for a Junior Systems Administrator/System Engineer 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, 11 paid Holidays,

Full-time

USD 69,550.00 - 125,725.00 per year

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