Showing page 4 of 232 (Total listings: 4635)

Linux Systems Administrator with Security Clearance

Ascension Federal Services Inc ✓ Verified
Direct Apply
Fort George G Meade, Anne Arundel County
May 25, 2026

Linux Systems Administrator Location: Fort Meade, MD, 20755 CLEARANCE: TS/SCI W/FULL SCOPE POLY (WILL SPONSOR FSP FOR CANDIDATES THAT HAVE TS OR ABOVE) Job Description: We are seeking a talented Linux Systems Administrator to join our team at Fort Meade, MD. The ideal candidate will be responsible for the installation, configuration, and maintenance of Linux operating systems and related software. This individual will also be responsible for troubleshooting system issues and ensuring the securi…

Linux Systems Administrator with Security Clearance

UICGS and Bowhead Family of Companies ✓ Verified
Direct Apply
Dahlgren, King George County
Aug 11, 2026

Overview LINUX SYSTEMS ADMINISTRATOR (RDTE) Bowhead seeks a Linux Systems Administrator to join our team in Dahlgren, VA. The Linux Administrator is responsible for system administration and customer support of servers and workstations in a Research, Development, and Testing and Evaluation (RDT&E) environment. Responsibilities * Providing technical problem solving and in-depth consulting for system operations. * Will work as part of a team responsible for administration and management of server…

Linux Systems Administrator with Security Clearance

C3EL ✓ Verified
Direct Apply
Pearl Harbor, Honolulu County
Jul 30, 2026

Linux Systems Administrator Pearl Harbor, HI Apply Overview: Job Title: Linux Systems Administrator Security Clearance: Top Secret Location: Pearl Harbor, HI (Due to the nature of the work and contract requirements, U.S. Citizenship is required.) Description: C3EL is seeking a candidate to fill a Linux System Administrator position supporting DISA's GSM-O II contract at Ford Island, Hawaii. The candidate will maintain the smooth operation of multi-user computer systems running Redhat Linux but …

Linux System Administrator with Security Clearance

CDIT LLC ✓ Verified
Direct Apply
Savage, Anne Arundel County
Aug 24, 2026

Job Description CDIT is a technology solutions company supporting government and national security customers with secure, mission-focused IT solutions. We partner with highly skilled technical professionals to support complex environments where reliability, security, and operational excellence are critical. Our team values technical expertise, collaboration, and a commitment to supporting the missions of our customers. CDIT is seeking an experienced Linux System Administrator to support a secur…

Linux Systems Administrator with Security Clearance

Johns Hopkins University Applied Physics Laboratory ✓ Verified
Direct Apply
North Laurel, Prince George's County
Aug 1, 2026

Description Do you thrive in and love a fast-paced, dynamic classified environment?Do you love to [area of expertise]? Do you want to be empowered to take ownership and stake in the overall engineering and operations of the IT infrastructure? Are you interested in learning new technologies and creating new IT capabilities? If so, we're looking for someone like you to apply and join our team at APL! We are ranked as one of Computerworld 's Top Places to Work in IT for 6 years running, and seek a…

Linux Systems Administrator with Security Clearance

Leidos ✓ Verified
Direct Apply
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

MANTECH ✓ Verified
Direct Apply
Fort George G Meade, Anne Arundel County
Aug 3, 2026

MANTECH seeks an experienced and passionate, career and customer-oriented Linux System Administrator to join our team in Ft. Meade, MD. Responsibilities include but are not limited to: * Creating and managing virtual environments * Systems administration of hardware and software in support of maintenance, developing and testing of information technology systems * Administration of Linux (i.e., Redhat/Rocky 8) * Scripting with Basic Shell (Bash), PUTTY * Configuring and maintaining storage and f…

Linux Systems Administrator with Security Clearance

Peraton ✓ Verified
Direct Apply
Gaithersburg, Montgomery County
Jun 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,…

Linux Systems Administrator with Security Clearance

CACI ✓ Verified
Direct Apply
Fort George G Meade, Anne Arundel County
Jul 7, 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: Up to 10% Type of Travel: Local * * * 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 administrati…

Linux System Administrator with Security Clearance

CACI ✓ Verified
Direct Apply
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 Systems Administrator with Security Clearance

Peraton ✓ Verified
Direct Apply
Silver Spring, Montgomery County
Jun 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,…

Linux Systems Administrator with Security Clearance

MANTECH ✓ Verified
Direct Apply
Fort George G Meade, Anne Arundel County
Jul 7, 2026

MANTECH seeks an experienced and passionate, career and customer-oriented Linux Systems Administrator to join our team located in the Fort Meade, MD area. Responsibilities include, but are not limited to: * Provide comprehensive administration and support for multi-platform operating system environments. * Design and implement automated security hardening solutions to enhance scalability and streamline operating system deployments. * Configure and maintain host-based security and intrusion dete…

Linux System Administrator with Security Clearance

MANTECH ✓ Verified
Direct Apply
Laurel, Prince George's County
Jul 27, 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…

Linux Systems Administrator with Security Clearance

Barbaricum ✓ Verified
Direct Apply
Hampton Roads, Hampton City
May 29, 2026

Barbaricum is a rapidly growing government contractor providing leading-edge support to federal customers, with a particular focus on Defense and National Security mission sets. We leverage more than 17 years of support to stakeholders across the federal government, with established and growing capabilities across Intelligence, Analytics, Engineering, Mission Support, and Communications disciplines. Founded in 2008, our mission is to transform the way our customers approach constantly changing …

Linux Systems Administrator with Security Clearance

MANTECH ✓ Verified
Direct Apply
Fort George G Meade, Anne Arundel County
Jul 7, 2026

MANTECH seeks an experienced and passionate, career and customer-oriented Linux Systems Administrator to join our team located in the Fort Meade, MD area. Responsibilities include, but are not limited to: * Provide comprehensive administration and support for multi-platform operating system environments. * Design and implement automated security hardening solutions to enhance scalability and streamline operating system deployments. * Configure and maintain host-based security and intrusion dete…

Linux Systems Administrator with Security Clearance

American Systems Corporation ✓ Verified
Direct Apply
Union Park, Orange County
Aug 13, 2026

Are you a Linux systems Administrator with a Secret clearance looking to work with a team of driven, supportive, and highly skilled professionals? Then we have an exciting opportunity for you to work with our Orlando Team supporting the Naval Air Warfare Training Systems Division (NAWTSD) in the development, testing and delivery of the US Navy's P8A Poseidon Maritime Patrol Aircraft's Ground Aircrew Training Devices Combat Systems Integrated Product (CSIP). This position is 100% onsite our Orla…

Linux System Administrator with Security Clearance

MANTECH ✓ Verified
Direct Apply
Hood College, Frederick County
Jul 31, 2026

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Fort Detrick, Maryland This is a hybrid position with 3 days onsite and 2 days remote. Expanded telework options are available on a case-by-case basis. This position supports a pivotal Defense Health Agency (DHA) program within our Health Portfolio. The successful candidate will work with an experienced project team supporting systems that are instrumental to Medical Logistics (MEDLOG) busines…

Linux System Administrator with Security Clearance

CTC Group ✓ Verified
Direct Apply
Fort George G Meade, Anne Arundel County
Aug 3, 2026

Summary CTC Group has a new and exciting opportunity for Linux Systems Administrators to maintain and secure Linux-based systems, support Cisco and Palo Alto network infrastructure, automate system administration tasks using Ansible, Bash, and Python, and perform vulnerability remediation and IAVA patching within a classified environment Location: Annapolis Junction / Ft. Meade Responsibilities * Maintain, configure, monitor, and troubleshoot Linux-based systems supporting mission-critical oper…

Linux Systems Administrator with Security Clearance

CACI ✓ Verified
Direct Apply
Hampton Roads, Hampton City
Jun 10, 2026

Job Title: Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Continental US * * * The Opportunity: We are seeking a cleared, skilled and experienced Red Hat Enterprise Linux Administrator with expertise in Puppet configuration management to join our IT team. The ideal candidate will play a crucial role in integrating, maintaining and opt…

Linux Systems Administrator with Security Clearance

SAIC ✓ Verified
Direct Apply
Pearl City, Honolulu
Jul 13, 2026

Description SAIC is seeking a Linux Systems / Cloud Administrator to serve on a team supporting our customer, the HQ USINDOPACOM J76, K. Mark Takai Pacific Warfighting Center. The systems and cloud administrator will be a part of a close team that is maintaining, enhancing and upgrading a myriad of applications and services, in an enterprise environment. As part of team, you will participate in implementation and maintenance of Cloud and On-Prem IT Infrastructure to support the customer. JOB DE…

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