Showing page 12 of 273 (Total listings: 5448)
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College Park, Prince George's County
Oct 1, 2026

About Peraton Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space,…

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Redondo Beach, Los Angeles County
Oct 23, 2026

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the TimeDescription At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the A…

Linux System Administrator (Top Secret SCI)

Intrepid Solutions and Services ✓ Verified
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Oakwood, Montgomery County
Oct 10, 2026

Overview CIS Secure is currently supporting the National Air & Space Intelligence Center (NASIC) providing IT support services across multiple contract task orders. This is a NEW MULTI-YEAR contract. The program supports diverse needs providing employees many opportunities for career development, growth and advancement. To continue to excel this program, Intrepid is seeking a Linux Administrator to provide Red Hat Enterprise Linux (RHEL) and Linux system administration support. A qualified Linu…

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Laurel, Prince George's County
Sep 1, 2026

Description Job Description About Leidos Leidos is a FORTUNE 500® company bringing a mix of innovative technology and sector expertise to customers in the national security, engineering, and health industries. We deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. Guided by our Mission, Vision, and Values, Leidos empowers its teams, contributes to its communities, and operates sustainably-always with a commitment to d…

Staff Linux Systems Administrator - TS/SCI

NORTHROP GRUMMAN ✓ Verified
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Redondo Beach, Los Angeles County
Oct 25, 2026

RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: SCI TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the …

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Bethesda, Montgomery County
Oct 18, 2026

Description Leidos is looking for our next TS/SCI-cleared DevOps Platform Engineer/Linux Systems Administrator to join a high-energy team deploying and maintaining common application-runtime capabilities in support of the DIA-NDOC (National Digital Exploitation OSINT Center) DOMEX Technology Platform (DTP). This role is part of a 10-year program supporting the DOMEX Data Discovery Platform (D3P) Modernization effort, where you'll contribute to mission-critical capabilities alongside a collabora…

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Reading, Middlesex County
Oct 10, 2026

Date Posted: 2026-10-07 Country: United States of America Location: US-MA-WOBURN-WB2 ~ 225 Presidential Way ~ GODDARD BLDG 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. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Ability to obtain INTER…

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Savage, Anne Arundel County
Oct 2, 2026

Vibrint transforms national security missions through advanced technology, data, and responsible intelligence solutions. Our teams design, secure, and sustain critical capabilities that enable faster, more informed mission decisions across some of the nation's most complex operational environments. By joining this particular High Performance Computing (HPC) prime contract, you'll help maintain and advance the computing infrastructure that powers unprecedented mission-critical analysis, scientif…

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Savage, Anne Arundel County
Oct 2, 2026

Vibrint transforms national security missions through advanced technology, data, and responsible intelligence solutions. Our teams design, secure, and sustain critical capabilities that enable faster, more informed mission decisions across some of the nation's most complex operational environments. By joining this particular High Performance Computing (HPC) prime contract, you'll help maintain and advance the computing infrastructure that powers unprecedented mission-critical analysis, scientif…

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Wright-Patterson Air Force Base, Greene County
Oct 14, 2026

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight …

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Savage, Anne Arundel County
Oct 31, 2026

iper Companies is seeking a Solaris & Linux System Administrator to join a leading government and defense technology organization. The Solaris & Linux System Administrator will support enterprise Solaris and Linux environments, ensuring the reliability, security, and performance of critical infrastructure, storage, backup, and compliance systems within highly regulated environments. The Solaris & Linux System Administrator role is a long term open ended contract opportunity and requires you to …

Linux System Administrator

SoftPathTechnologies ✓ Verified
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Myrtle Point, Coos County
Nov 3, 2026

Job Title: Linux System Administrator Client: VMware Location: Remote Project Duration: 2 Years Employment Type: Contract Job Summary We are looking for an experienced Linux System Administrator to manage and support enterprise Linux infrastructure. The ideal candidate should have strong hands-on experience with Red Hat Enterprise Linux (RHEL), Linux server administration, system troubleshooting, shell scripting, automation, security, and performance optimization. Key Responsibilities Install, …

Linux System Administrator

TEKsystems ✓ Verified
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Richardson, Dallas
Nov 3, 2026

Description TOP SECRET CLEARANCE * SEC CERT REQUIRED DAY 1 IT - Linux Systems Administrator Primary Responsibilities As part of a cross-functional team, this role partners closely with organization members to support Linux-focused environments within secure labs. Responsibilities span Tier 1 through Tier 3 support, handling everything from frontline service requests to advanced engineering and troubleshooting. Tier 1 Frontline Support: Respond to service requests, perform initial triage, gather…

Linux Systems Administrator

LinTech Global ✓ Verified
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Lewistown, Frederick County
Oct 20, 2026

Dexian Government Solutions. is recruiting for a Linux Systems Administrator to support our contract at the USAMRIID in Fort Detrick, MD. Target Salary : $100,000.00 Position Overview: Dexian Government Solutions is seeking a skilled Linux Systems Administrator to support mission-critical infrastructure at USAMRIID, located at Ft. Detrick in Frederick, MD. USAMRIID is DoD's premier maximum-containment (BSL-4) laboratory, developing and evaluating medical countermeasures, rapid diagnostics, and …

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Savage, Anne Arundel County
Jul 28, 2026

Job Title: RedHat Linux System Administrator Location(s): Annapolis Junction, Maryland Hours: Regular Full-Time Salary Range: $120k/yr - $185k/yr Clearance Requirements This position requires a current and active TS/SCI with Poly at the time of application. What you will be doing: The SAL will perform a variety of functions, depending on the level required. The specific demonstrated skills, as more fully set forth at each level may include: providing support for the implementation and operation…

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Dahlgren, King George County
Jun 1, 2026

Title: • Linux System Administrator Location: • Dahlgren, Virginia Clearance Required: • Top Secret Certification Required: • Security or IAT II Equivalent Top Skills Required: • 3 Years of Red Hat Linux Servers and Workstations (RHEL 7) • System Administration • Ideal Linux Admin will have Department of Defense experience with security guidelines and policies. (DISA STIGS) is a plus Nice to Haves • Have knowledge of corporate services including: DNS, SMTP, RHEV, Splunk, Apache • Demonstrated e…

Linux System Administrator

Vets Hired ✓ Verified
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Clarksburg, Shelby County
Aug 29, 2026

Job Summary The Linux System Administrator (Intermediate-Level) is responsible for operating, maintaining, troubleshooting, securing, and supporting enterprise Linux-based systems and infrastructure. The role focuses on system availability, performance, cybersecurity compliance, vulnerability remediation, automation, backups, disaster recovery, virtualization, and infrastructure modernization within a secure enterprise environment. Key Responsibilities Monitor system performance, availability, …

Linux System Administrator

3dB Labs ✓ Verified
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West Chester, Butler County
Oct 20, 2026

3dB Labs is seeking a skilled Linux System Administrator to join our corporate team supporting our growing mission. The ideal candidate is a self-starter with great interpersonal skills with the technical knowledge to go with it. Our work environment is dynamic and fast-paced with a focus on quick-reaction responses to our customers' needs. Our products are technically compelling, operationally relevant, and deployed around the globe. For the Linux System Admin role, the major list of duties in…

Linux System Administrator

Dobbs Defense Solutions, LLC ✓ Verified
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Fort George G Meade, Anne Arundel County
Sep 24, 2026

Our Mission: At Dobbs Defense, we deliver mission-centric IT, Cyber, and data analytics solutions for our government and commercial clients through the convergence of automation, innovation, training, and education. Delivering high-quality IT, cybersecurity, and data analytics solutions through proven and innovative methods is our vision. Job Description: Dobbs Defense Solutions is seeking a Linux System Administrator to provide technical support to the Fort George G. Meade. The role includes a…

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Herndon, Fairfax County
Oct 30, 2026

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. To be eligible for this…

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