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Washington, District of Columbia

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Today

We are seeking a skilled Linux & Storage Systems Administrator to support the design, automation, maintenance, and operational stability of enterprise Linux and storage environments. This role will contribute to infrastructure reliability, performance, and security across on-premises and cloud platforms. Key Responsibilities Linux Systems Administration Design, implement, and maintain Red Hat Enterprise Linux (RHEL) server environmentsAutomate system provisioning and configuration using Ansible

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Contract

Depends on Experience

Systems Engineer - Linux / Windows

Hybrid in Merrifield, Virginia

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Today

Senior System Engineer, Linux/Windows Direct Hire First 6 months on-site, Fairfax, VA then hybrid 2 days a week on-site thereafter Salary: $120,000 to $125,000 annually, plus benefits Federal End-Client: US Citizenship required, eligible for Public Trust clearance System One IT is staffing a direct hire opening for a Linux/Windows Systems Engineer with a respected systems integrator, supporting a federal end customer in Fairfax, VA. This is an on-site position for the first 6 months, with 2 da

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Full-time

$125000

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

Linux Systems Administrator

Springfield, Virginia

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Today

Leidos is seeking an experienced, customer-facing Linux Systems Administrator to join our dynamic team supporting mission-critical infrastructure in a secure, classified environment. This junior-to-mid level role combines strong technical expertise in Red Hat Enterprise Linux (RHEL) with excellent communication skills to deliver reliable support to government customers and internal stakeholders. The ideal candidate thrives in data center operations, enjoys hands-on hardware tasks, and excels at

Full-time

USD 73,450.00 - 132,775.00 per year

Linux Systems Administrator

Laurel, Maryland

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Today

Description Are you excited to support mission-critical, classified technologies and programs? Do you thrive working as part of a collaborative, highly technical IT team? If so, we're looking for someone like you to join our team! The Force Projection Sector (FPS) in the Johns Hopkins University Applied Physics Laboratory is seeking a Linux System Administrator to support several fast paced and dynamic classified information systems. This position is an opportunity to be part of an experienc

Full-time

USD 100,000.00 per year

Senior Systems Administrator (Windows/Linux) - Top Secret Clearance w/SCI eligibility required

Arlington, Virginia

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Today

Overview At AMERICAN SYSTEMS, your technical expertise directly supports national security and mission-critical systems. As an employee-owned federal government contractor, we deliver trusted solutions in support of the nation's highest priorities. We are seeking a Senior Systems Administrator 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 Windows and Linu

Full-time

USD 108,100.00 per year

Linux System Administrator-Senior Level

Remote or 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

Linux Administrator with Top Secret Clearance

Olney, Maryland

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23d ago

Responsibilities: Kriaanet is seeking an experienced Linux System Administrator to implement and manage a centralized Cloud System Management system. This role requires a self-starter who can operate as the program's Linux expert within a small team with minimal supervision. Normal activities for this role include: Configure ACAS; evaluating and understanding STIG; perform ACAS scans and perform compliance assessment against STIG; configure and manage ePolicy Orchestrator for Data Loss Preventio

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Contract

$75 - $100

Sr. Systems Engineer (LINUX)

Washington, District of Columbia

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Yesterday

Sr Linux Systems Engineer 100% ONSITEWashington DC 20006 Long Term Contract- Possible Multi year extension based on performance Per Federal contract U.S. Citizenship Required Must be able to pass enhanced background screen (criminal, financial, drug) for Public Trust clearance W-2 or C2C Position Requirements: Linux Administration: Required: Experience with design, implementation, and ongoing maintenance of Red Hat Enterprise Linux systems. Highly Desired: Experience with Ansible and Terrafor

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Third Party, Contract

Depends on Experience

Senior Linux System Administrator

Fairfax, Virginia

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Today

The ESA V program is an IT Services program supporting several customers within the Department of Justice. The program provides a range of IT services, including help desk, deskside support, Windows workstation engineering and maintenance, managed print services, ITSM, Active Directory services, and video conferencing, as well as IT Infrastructure Operations and Engineering support. Leidos is hiring a Senior Linux System Administrator to provide on-site support in Fairfax, VA at the customer en

Full-time

USD 116,350.00 - 210,325.00 per year

Senior Linux Administrator

Fort Belvoir, Virginia

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Today

The DTRA program at Leidos is seeking a Senior Linux Administrator inFort Belvoir, VA to support the DTRA I3TS Infrastructure Services team to maintain and optimize the Linux production environment. The candidate will be responsible for sustaining Linux servers as well as the conceptualization, design, development and implementation of new Linux capabilities. The candidate is expected to work well as a part of the DTRA Systems Administration team using ITIL best practices as well as work indepen

Full-time

USD 92,300.00 - 166,850.00 per year

Red Hat Linux System Administrator (IT SE II) (Government)

Chantilly, Virginia

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Today

Job Description: AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers' mission. Our National Security Team supports the intelligence community, providing, operating, and assuring critical voice, video

Full-time

USD 98,100.00 - 160,000.00 per year

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

Linux System Administrator

Laurel, Maryland

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Today

Description Are you passionate about shaping secure, IT systems in classified environments? Do you want to influence system improvements, implementation decisions, and the overall security posture of advanced technology systems? If so, we're looking for someone like you to join our team at APL! We are seeking a Linux System Administrator to join the RF Engineering group to support Hardware-in-the-Loop (HiL) facilities. In this role, you will apply Risk Management Framework (RMF) principles,

Full-time

USD 100,000.00 per year

Linux Systems Engineer

Laurel, Maryland

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Today

Description Do you enjoy solving complicated problems? Are you passionate about Linux? Do you like contributing to automation? Do you thrive in a fast-paced, dynamic environment? If so, we 're looking for someone like you to join our team at APL. Recognized by Computerworld as one of the Top Places to Work in IT for six years running, we're looking for a Linux Systems Engineer who is eager to learn, loves working hands-on with Linux, and is excited by open-source technologies. In this role

Full-time

USD 85,000.00 per year

2026 Graduate - Linux Systems Engineer

Laurel, Maryland

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Today

Description Do you enjoy solving complicated problems? Are you passionate about Linux? Do you like contributing to automation? Do you thrive in a fast-paced, dynamic environment? If you are a recent or soon-to-be BS/MS graduate with a degree in Information Technology, Computer Science, or a related field and a passion for tackling critical challenges, we'd love to have you join our team! Recognized by Computerworld as one of the Top Places to Work in IT for six years running, we're looking

Full-time

Linux (DevSecOps) System Administrator (TS/SCI)

Herndon, Virginia

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Today

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getters-where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world. This position requires a

Full-time

USD 140,000.00 - 165,000.00 per year

Systems Administrator

Hybrid in Maryland

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Today

Job Number: R0230395 Systems Administrator The Opportunity: In this role, you'll design, operate, and evolve the systems that power national security missions. From enterprise Windows and Linux servers to virtualization, storage, and backup environments, you'll keep mission platforms online, secure, and recoverable. This isn't a passive maintenance role - you'll architect new solutions from the ground up, tune performance across clusters, and push automation deeper into daily operations. You'l

Full-time

USD 77,600.00 - 176,000.00 per year

Systems Administrator

Hybrid in Maryland

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Today

Job Number: R0230361 Systems Administrator The Opportunity: In this role, you'll design, operate, and evolve the systems that power national-security missions. From enterprise Windows and Linux servers to virtualization, storage, and backup environments, you'll keep mission platforms online, secure, and recoverable. This isn't a passive maintenance role - you'll architect new solutions from the ground up, tune performance across clusters, and push automation deeper into daily operations. You'll

Full-time

USD 77,600.00 - 176,000.00 per year

Sr. Systems Administrator

Arlington, Virginia

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Today

Date Posted: 2026-01-26 Country: United States of America Location: US-VA-ARLINGTON-VA1 ~ 2461 S Clark St ~ BLDG 1, Ste 1000 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance Type: DoD Clearance: Top Secret Security Clearance Status: Active and existing security clearance required on day 1 At Raytheon, the foundation of everything we do

Full-time

USD 75,800.00 per year

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