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Fort Belvoir, Virginia

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Today

This position requires an active DoD Clearance (Secret, Top Secret, Top Secret/SCI) or the ability to be obtain an (Interim Secret, Interim Top Secret) Because an active or interim DoD clearance is required, U.S. Citizenship is required Description TEKsystems is seeking a Linux Administrator 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 conceptualizati

Full-time

USD 60.00 - 65.00 per hour

Linux System Administrator (TS/SCI) - Service Desk

Fort Belvoir, Virginia

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Today

Basic Qualifications Bachelor's degree in a specialized area; or equivalent is required plus a minimum of 2 years of relevant experience; or Master's degree. CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is required at time of hire. Must be able to obtain Polygraph. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our f

Full-time

USD 107,406.00 - 114,000.00 per year

Junior Linux System Administrator

McLean, Virginia

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Today

Description & Requirements Maximus is looking to hire a Junior Linux System Administrator. Who We Seek: - Passion Seekers. You genuinely care about the work that you do and its impact on society. - Self-Starters. You're a go-getter who isn't afraid to step up and disrupt the status quo. - Entrepreneurs. You bring fresh ideas to the table, work hard, develop business and consistently seek new challenges. - Collaborators. You're a great contributor to a high performing team that accomplishes grea

Full-time

USD 50,000.00 per year

Linux System Administrator

Bowie, Maryland

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Today

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Your greatest work is ahead! Leidos' Defense is seekin

Full-time

USD 92,300.00 - 166,850.00 per year

Senior Linux System Administrator Vice President

Remote or Irving, Texas

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Today

Job Overview: We are seeking an accomplished and technically astute Level 3 Linux System Administrator to join our high-performance infrastructure team. This individual will serve as a subject matter expert (SME) on Linux systems, providing deep operational insight, advanced troubleshooting, performance tuning and capacity planning. Demonstrate a strong balance on hands-on expertise, automation mindset, and a strategic approach to system scalability, security, and lifecycle management. Respons

Full-time

USD 125,760.00 - 188,640.00 per year

Linux Administrator

Fort Belvoir, Virginia

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18d ago

Job Title: Linux Administrator Location: Fort Belvoir, VA Type: Direct Hire Contractor Work Model: Onsite Security Clearance: Active Secret Clearance Required Responsibilities Support, maintain, and enhance Linux-based systems and services that enable Identity, Credential, and Access Management (ICAM) functions across the enterprise. Manage, configure, and maintain Linux servers (RHEL/Oracle Linux/Ubuntu or distributions in use). Perform patching, vulnerability remediation, system hardening, an

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Full-time

Depends on Experience

Linux Administrator SME

Springfield, Virginia

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Today

Linux Administrator SME Key Qualification Checklist Program: Centralized SuperComputing Facility (CSCF) HPC Clearance Required: Active TS/SCI with CI Poly Basic Qualifications (Must Have) Bachelor's in Computer Science (or AIS) + 10+ years experience 5+ years developing system software in heterogeneous, multi-platform environments Strong Bourne/Bash & Expect scripting skills Advanced Linux kernel debugging (source code review, logs, crash, systemtap) Experience managing Red Hat Satellite repos

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Full-time, Contract

Linux Administrator SME - HPC Operations

Springfield, Virginia

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23d ago

Linux Administrator SME - HPC Operations Location: Springfield, VA - Onsite Duration: Longterm Role Summary: Provide expert-level Linux administration for our Centralized SuperComputing Facility (CSCF) and associated HPC contracts. You'll handle day-to-day operations, automation, and user support to ensure optimal system performance and availability. This role requires an active TS/SCI clearance with CI Polygraph at the time of onboarding. Full-time onsite presence at designated federal fa

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Third Party, Contract

$55 - $60

Linux Administrator

Arlington, Virginia

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Today

Job#: 3028202 Job Description: For immediate response, please send to : Updated WORD resume, desired hourly rate, and best time to speak! Job ID: 3028202 Position: Linux Administrator Location: 100% REMOTE (HQ in Arlington, VA) Duration: Long Term Contract (W2 ONLY) MUST HAVES: Ability to obtain and maintain a DoD Secret Clearance | Security+ CE (please send a copy)Bachelor's & 7-10+ years of experienceScripting experience with Bash, Python, or Ansible Role Overview We are seeking a Linux Adm

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Full-time

Senior Systems Administrator - Linux

Fort Belvoir, Virginia

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Today

Leidos is seeking a Linux Administrator 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 work well as a part of the DTRA Systems Administration team using ITIL best practices as well as work independently on assigned tasks. Candidate is expected t

Full-time

USD 92,300.00 - 166,850.00 per year

Senior Red Hat Linux Administrator

Arlington, Virginia

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Today

Job ID: 2610475 Location: Arlington, VA, US Date Posted: 2026-03-20 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_ON_SITE Description SAIC is currently seeking an experienced Linux and UNIX Administrator to operate and maintain Red Hat and Oracle Linux (Release 7 and 8), and HP-UX (11.31) operating systems within

Full-time

Senior Linux Administrator Team Lead

Falls Church, Virginia

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Today

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Critical Systems, Enterprise Systems, Software Updates, System Administration, Technical Issues Certifications: CompTIA Security+ CE | CompTIA - CompTIA, Red Hat Certified Engineer (RHCE) | Red Hat - Red Hat Experience: 5 + years of related experience ship Require

Full-time

USD 127,500.00 - 172,500.00 per year

ITSM ServiceNow Platform & Linux Administrator /CMDB Engineer

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: Other Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Linux, Microsoft Windows Server, ServiceNow Administration, ServiceNow Configuration Management Database (CMDB), ServiceNow Platform Certifications: None Experience: 2 + years of related experience ship Required: Yes Job Description: SYSTEMS ENGINEER Senior - Servi

Full-time

USD 119,000.00 - 161,000.00 per year

Senior Linux Administrator

Lorton, Virginia

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Today

Company Overview We are a world-class team of professionals who deliver next generation technology and products in robotic and autonomous platforms, ground, soldier, and maritime systems in 50+ locations world-wide. Much of our work contributes to innovative research in the fields of sensor science, signal processing, data fusion, artificial intelligence (AI), machine learning (ML), and augmented reality (AR). QinetiQ US's dedicated experts in defense, aerospace, security, and related fields a

Full-time

Linux Systems Administrator

Washington, District of Columbia

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Today

Job Number: R0234152 Linux Systems Administrator The Opportunity: Your technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the U.S. Federal Government? We're looking for a cross domain specialist to help us design, deploy, and maintain Cross Domain Solutions for an enterprise environment. As a Linux System Administrator on our project, you'll constantly look for ways to make the infrastructure bet

Full-time

USD 77,600.00 - 176,000.00 per year

Linux/Windows Systems Administrator

Manassas, Virginia

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Today

Job Description WHAT WE'RE DOING At Lockheed Martin Rotary and Mission Systems, we are inspired by innovation and integrity. We believe that by applying the highest standards of business ethics and creative thinking, everything is within our reach - and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training and education. Come and experience your future! THE WORK The Manassas Systems Administrator team is seeking to hire a full time Sr. Linux/Windows Systems Administr

Full-time

USD 81,600.00 - 143,865.00 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

Senior System Administrator

Suitland-Silver Hill, Maryland

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Today

Overview SilverEdge is a premier provider of innovative cyber, software and intelligence solutions addressing everyday challenges to meet mission goals across the DOD and Intel Communities and beyond. We are seeking a System Administrator to perform a crucial role on a prime contract. Your daily duties will include, but not limited too: Maintain and develop system documentation to include product guides/manuals, SOPs, work logs and the Helpdesk ticket systemProvide system administration support

Full-time

System Admin (Linux)

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

Tier 2 System Administrator

Arlington, Virginia

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Today

Job Number: R0237894 Tier 2 System Administrator The Opportunity: Your combination of people skills and system administration knowledge makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the DoD? Your blend of technical skill, problem-solving ability, and mission focus enables you to keep critical systems running and secure. We're looking for a System Administrator with experience in Windows system administration, v

Full-time

USD 62,000.00 - 141,000.00 per year

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