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Network and Computer Systems Administrator

Washington, District of Columbia

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Today

MANTECH seeks a motivated, career and customer-oriented Network and Computer Systems Administrator to join our team at Joint Base Anacostia-Bolling, DC. This is an onsite position. You will serve as the primary technical authority for the installation and configuration of enterprise Windows Server and Oracle Database environments, driving innovation through virtualized network deployment and automation. Responsibilities include but are not limited to: Configure and maintain computer systems with

Full-time

Network and Computer Systems Administrator

Washington, District of Columbia

•

Today

Full-time

Senior Network/Systems Administrator

Arlington, Virginia

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Today

Overview GovCIO is currently hiring a Senior Network/Systems Administrator with an active Secret clearance to ensure the smooth operation of computer systems. This position is located in Arlington, VA and is a hyrbid position. Responsibilities Establishes and maintains smooth operation of computer systems (to include operating systems, software and hardware) in networked or stand-alone configurations, maintains system integrity, and upgrades systems and/or servers as required. May create and

Full-time

USD 94,150.00 - 145,000.00 per year

Senior Network/Systems Administrator

Arlington, Virginia

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Today

Overview: GovCIO is currently hiring a Senior Network/Systems Administrator with an active Secret clearance to ensurethe smooth operation of computer systems. This position is located in Arlington, VA and is a hyrbid position. Responsibilities: Establishes and maintains smooth operation of computer systems (to include operating systems, software and hardware) in networked or stand-alone configurations, maintains system integrity, and upgrades systems and/or servers as required. May create and d

Full-time

Compensation information provided in the description

Senior Network and Computer Systems Administrator

Arlington, Virginia

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Today

Overview AMERICAN SYSTEMS is seeking a Senior Network and Computer Systems Administrator to join the NISSC3 Mission at The Pentagon. Step into the iconic halls of America's command center as part of the NISSC contract team. Here, your work safeguards national security and enables top-tier operations for the Department of Defense. Support and advance the NISSC mission, powering critical command, control, and communications that impact global defense. At the very heart of American strategy, be

Full-time

USD 108,100.00 per year

Senior Systems Administrator

Washington, District of Columbia

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Today

MANTECH seeks a motivated, career and customer-orientedSenior Systems Administratorto join our team in Washington, DC. Responsibilities include but are not limited to: Serves as a Customer Advocate supporting VIP level customer; must present professional image and communicate well. Provides in-person, ?white glove? support to key stakeholders.Responsible for providing support to end-user community on difficult hardware, software and network related problems, questions, and use.Provides resoluti

Full-time

Senior Systems Administrator

Springfield, Virginia

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Today

MANTECH seeks a motivated, career and customer-orientedSenior Systems Administratorto join our team in Springfield, VA. Responsibilities include but are not limited to: Serves as a Customer Advocate supporting VIP level customer; must present professional image and communicate well. Provides in-person, ?white glove? support to key stakeholders.Responsible for providing support to end-user community on difficult hardware, software and network related problems, questions, and use.Provides resolut

Full-time

Senior Systems Administrator

Washington, District of Columbia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux, Microsoft Windows, System Administration Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Senior Systems Administrator Own your opportunity to join our team, bringing professionalism and initiative to a fas

Full-time

USD 96,569.00 - 130,651.00 per year

Senior Systems Administrator

Quantico, Virginia

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Today

Description & Requirements Maximus is looking to hire a Senior Systems Administrator. This position is contingent upon award, requires a TS/SCI clearance and is on-site five days a week. Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS221, T5, Band 8 Job-Specific Essential Duties and Responsibilities: - Administers and supports daily operational requirements of computer network systems including workstation, file servers, and web servers. - The installation of ha

Full-time

USD 150,000.00 per year

Senior Cloud Systems Administrator

Upper Marlboro, Maryland

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5d ago

Job ID: 2601673 Location: UPPER MARLBORO, MD, US Date Posted: 2026-02-23 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: Yes 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 Laboratory (

Full-time

USD 120,001.00 - 160,000.00 per year

Sr Systems Administrator

Fort Meade, Maryland

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Today

Job#: 3023835 Job Description: Sr Systems Administrator Needed - Top Secret - Fort Meade, MD We are looking for a Senior Systems Administrator who has moved beyond helpdesk/user support and can build, manage, and troubleshoot complex server infrastructures from the ground up. Location: Ft meade, MD (On-site 5 days per week) Pay: $55-60/hr Why this role stands out: Direct Impact: You'll be managing server systems for a critical mission at Fort Meade, focusing on Windows/UNIX configuration and

Easy Apply

Full-time

USD 55.00 - 60.00 per hour

Senior Systems Administrator

Hybrid in Reston, Virginia

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14d ago

Job Title: Senior Systems Administrator Location: Reston, VA (Hybrid 3x/Week) Salary: DOE + full benefits Clearance: Active Public Trust (or ability to obtain) Overview: TechSurSolutions is a digital services company whose mission is to enable digital transformation for our customers to improve quality and efficiency.Based in the DC metropolitan area,TechSurspecializes in advanced cloud services, modernization for both ITstructuresand applications, leveraging Agile development, and Data Analyt

Easy Apply

Full-time

Depends on Experience

Linux Systems Administrator Tier I

Arlington, Virginia

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Today

Overview AMERICAN SYSTEMS is actively recruiting a Tier I Linux Systems Administrator with at a Top Secret clearance to support enterprise-level HPC environments. This position plays a key role in system optimization, security implementation, and collaboration with engineering and network teams. Responsibilities As a Tier I Linux Systems Administrator, you will have the opportunity to do the following: Provide first-line technical support for software, hardware, network infrastructure, and sy

Full-time

USD 91,600.00 per year

Tier II Linux Systems Administrator (HPC) - Top Secret Clearance w/SCI eligibility

Arlington, Virginia

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Today

Overview AMERICAN SYSTEMS, a 100% employee-owned federal government contractor, is seeking a Tier II Linux Systems Administrator to support a classified High-Performance Computing (HPC) environment in Arlington, VA. Are you an experienced Linux administrator with strong system fundamentals wanting to expand your skillset into HPC environments? If so, this role is for you! You will work alongside senior system administrators and engineers, receiving hands-on exposure to HPC platforms, distribut

Full-time

USD 91,600.00 per year

G2 Directory Services Engineer / Senior Systems Administrator | Active Top Secret clearance

Remote

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Today

Type of Requisition: Pipeline Clearance Level Must Currently Possess: Top Secret Clearance Level Must Be Able to Obtain: Top Secret Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Directory Services, System Administration, Technical Support Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: Transform technology into opportunity as a Directory Services Engineer / Senior Systems Adm

Full-time

USD 111,155.00 - 150,385.00 per year

Systems Administrator - SME

Washington, District of Columbia

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Today

As a System Administrator SME with Modern Technology Solutions, Inc. (MTSI), you will support a customer operating out of Joint Base Anacostia-Bolling, DC. The System Administrator serves as the Program Office's information technology and is responsible for supporting, designing, maintaining, and monitoring internal and external networks as well as implementing and managing all systems, applications, security, and network configurations. Additionally, the Senior System Administrator would resolv

Full-time

Systems Administrator (LINUX)

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

Senior Relativity Senior Systems Administrator

Remote or San Francisco, California

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Today

Senior Relativity Senior Systems Administrator Employment Type: Full Time Department: Legal/IT We are seeking a Senior Relativity Sr. Systems Administrator to join our team! You will handle a variety of projects to support and improve the organization's network systems. CGS brings motivated, highly skilled, and creative people together to solve the government's most dynamic problems with cutting-edge technology. To carry out our mission, we are seeking candidates who are excited to contribut

Full-time

USD 117,449.28 - 169,648.96 per year

SYSTEMS ADMINISTRATOR

Remote or Seattle, Washington

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Today

Job Description UW Medicine has an outstanding opportunity for a SYSTEMS ADMINISTRATOR (SENIOR COMPUTER SPECIALIST) WORK SCHEDULE 100% FTEFirst Shift DEPARTMENT DESCRIPTION As the region's only Level I Trauma center, Harborview Medical Center (HMC) is well known for innovations and excellence in trauma care and its centers of emphasis: Trauma, Burn, Neurosciences, AIDS/STD, Center for Advanced Reconstruction and Rehabilitation (CARER), and mentally-and medically- vulnerable populations. POSI

Full-time

USD 75,696.00 - 123,000.00 per year

Senior DevOps/Systems Administrator (Active Top Secret Clearance)

Remote or Huntsville, Alabama

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Today

Please note: This role is contingent upon a contract award. While it is not an immediate opening, we are actively conducting interviews and extending offers in anticipation of the award. ICF is a mission-driven company filled with people who care deeply about improving the lives of others and making the world a better place. Our core values include Embracing Difference; we seek candidates who are passionate about building a culture that encourages, embraces, and hires dimensions of difference. O

Full-time

USD 81,499.00 - 167,644.00 per year

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