Showing page 13 of 455 (Total listings: 9100)
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Dulles Town Center, Loudoun County
Sep 24, 2026

Job Title: Linux System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opportunity: CACI's National Mission Systems (NMS) group is seeking a highly motivated Linux Systems Administrator tosupport mission-critical environments by ensuring secure, reliable, and scalable infrastructure across cloud and bare-metal systems…

Linux/Database Administrator with Security Clearance

Future Technologies, Inc. ✓ Verified
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King George, King George County
Sep 30, 2026

The Linux/Database Administrator will work independently under limited supervision, install and maintain Linux-based database servers, manage updates and enhancements, troubleshoot and optimize performance, support end users and developers, manage accounts and privileges, maintain configuration baselines, and research emerging technologies to support future system upgrades. Responsibilities include: * Managing database backup strategies, restoration procedures, replication, clustering, and fail…

Linux Systems Administrator with Security Clearance

Johns Hopkins University Applied Physics Laboratory ✓ Verified
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North Laurel, Prince George's County
Oct 20, 2026

Description Do you have a passion for Linux systems administration? Do you have experience with systems administration for classified systems? If so, we're looking for someone like you to join our team at APL. The Strategic Missile Defense Program Area (AH1) is seeking a motivated and experienced Linux Systems Administrator to join the Homeland Defense Mission Area (HDMA) Classified Information Systems Section. As a Linux Systems Administrator, you will work collaboratively with other section s…

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Dulles Town Center, Loudoun County
Oct 16, 2026

Job Title: Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US * * * The Opportunity: CACI is seeking a hands-on Linux Systems Administrator III to join our Infrastructure Team supporting our family of Electronic Warfare (EW) systems. Support our end-to-end Linux environment, including engineering workstations, build ser…

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Belle Isle, Hancock County
Aug 14, 2026

R-00189488 Description Are you a Linux Systems Administrator ready to take your skills beyond the traditional enterprise environment? Leidos is seeking a Mid-Level Linux Systems Administrator to support one of the Department of War's (DoW) largest High Performance Computing (HPC) environments at Stennis Space Center, Mississippi. In this role, you'll work alongside a highly skilled technical team supporting advanced supercomputing resources used by scientists and engineers to solve complex comp…

Linux System Administrator with Security Clearance

Johns Hopkins University Applied Physics Laboratory ✓ Verified
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North Laurel, Prince George's County
Oct 6, 2026

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 Weapons and Countermeasures group to support secure Analysis Facilities. In this role, you will apply Risk Management Framework (RMF) principles, d…

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Seven Corners, Fairfax County
Oct 20, 2026

Company Overview By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next. Headquartered in McLean, VA, By Light supports defense, civilian, and commercial IT customers worldwide. Position Overview By Light has an opening for a Sr. Systems Administrator (Linux/Unix) position supporting the Army National Guard (ARNG) in Falls Church, VA. This is an IT Servic…

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Fort George G Meade, Anne Arundel County
Oct 16, 2026

Job Title: Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None * * * We are seeking a highly skilled Linux Systems Administrator to support mission-critical enterprise infrastructure in a secure Department of Defense/Intelligence Community environment. The successful candidate will provide advanced systems administration, ne…

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Pinecraft, Sarasota County
May 25, 2026

Job Title: Linux System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US * * * The Opportunity: CACI has an immediate opening for a Linux Systems Administrator, with a Top Secret Clearance (TS/SCI) with polygraph for our corporate development/test network and fielded systems. CACI is seeking a development Systems Adminis…

Linux Automation Administrator with Security Clearance

Applied Information Sciences ✓ Verified
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Linthicum Heights, Anne Arundel County
Oct 7, 2026

Why AIS? When you join AIS, you're joining a mission-driven team that's passionate about making a difference. You'll work on projects that matter, alongside industry-leading experts, in an environment that fosters innovation, driving client success, and empowering our team to make a lasting impact. As an employee-owned company, we value collaboration, inclusivity, continuous growth, and shared success. * Employee Ownership: Your contributions directly impact the company's success, and you share…

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Silver Spring, Montgomery County
Sep 23, 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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Dulles Town Center, Loudoun County
Oct 16, 2026

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 t…

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Langley, York County
Oct 14, 2026

EverWatch is a government solutions company providing advanced defense, intelligence, and deployed support to our country’s most critical missions. We are a full-service government solutions company. Harnessing the most advanced technology and solutions, we strengthen defenses and control environments to preserve continuity and ensure mission success. EverWatch employees are focused on tackling the most difficult challenges of the US Government. We offer the best salaries and benefits packages …

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Laurel, Prince George's County
Oct 23, 2026

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD. You will be part of a dedicated team delivering enterprise infrastructure capabilities for a global workforce that supports a wide range of national defense missions. This role directly supports the Enterprise Infrastructure Services (EIS) organization-the foundation of all Enterprise Information Technology (EIT) for MPO. Responsibilities include but are not limited to: * Configure…

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College Park, Prince George's County
Sep 23, 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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Dulles Town Center, Loudoun County
Oct 16, 2026

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 t…

Red Hat Linux Administrator

Ascension Federal Services ✓ Verified
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Arlington, Arlington County
May 13, 2026

Red Hat Linux Administrator Location: Arlington, VA, 22201 CLEARANCE: Active SECRET Job Description: We are seeking a skilled Red Hat Linux Administrator to join our team in Arlington, VA. The ideal candidate will be responsible for installing, configuring, and maintaining Red Hat Linux systems in a fast-paced environment. The Red Hat Linux Administrator will work closely with the IT team to ensure the stability and security of our Linux infrastructure. Responsibilities: Install and configure R…

Quality Assurance Linux Administrator

Assertive Professionals ✓ Verified
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Hanover, Anne Arundel County
Oct 10, 2026

Assertive Professionals is in search of a Level 2 Quality Assurance Linux Administrator to support our National Security Customer near Hanover, MD . This is a Funded and Immediate position! The salary for this position is $120,000-$130,000 which includes a $10,000 sign-on bonus, plus a $1,200 annual compliance bonus ! We offer an excellent benefits package, including PTO, 401k Match at 5%, Profit Sharing, Company paid Life Insurance, Dental, Vision, STD/LTD, and two options under a national med…

A318 Linux Administrator 9328783

Focused HR Solutions ✓ Verified
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Glendale, Denver
Sep 7, 2026

100% remote must be local to CO to apply Our direct client has an opening for an Linux Administrator 9328783 This position is 9 months with the option of extension, and the client is in Denver, Colorado If you are interested, please send a rate and resume. QUALIFICATIONS: Bachelor's degree in Information Technology or related field. Progressively responsible experience similar to that listed in the job functions or related information technology field may be substituted year for year for the de…

Senior Linux Administrator II

Microchip ✓ Verified
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Chandler, Maricopa County
Sep 24, 2026

Are you looking for a unique opportunity to be a part of something great? Want to join a 17,000-member team that works on the technology that powers the world around us? Looking for an atmosphere of trust, empowerment, respect, diversity, and communication? How about an opportunity to own a piece of a multi-billion dollar (with a B!) global organization? We offer all that and more at Microchip Technology Inc. People come to work at Microchip because we help design the technology that runs the w…

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