Overview Black Canyon Consulting (BCC) is actively looking for Senior Linux System Administrator to support our work for the National Center for Biotechnology Information (NCBI) at the National Library of Medicine (NLM), an institute of the National Institutes of Health. This opportunity is full time and onsite at the NIH-NCBI in Bethesda, MD and/or remote work. NCBI is part of the National Library of Medicine (NLM) at the National Institutes of Health (NIH). NCBI is the world’s premier biomedi…

Computational Physics, Inc. (CPI) is seeking a Senior Linux System Administrator to support our customers at the United States Naval Observatory (USNO ) in the deployment and maintenance of its precise timing and astrometry networks. The USNO is responsible for the production and dissemination of precise parameters concerning time, star positions, and the earth's rotation to the Department of Defense (DoD) and intelligence community, other U.S. Government (USG) users such as NASA and the Nation…

Riverside Research is an independent National Security Nonprofit dedicated to research and development in the national interest. We provide high-end technical services, research and development, and prototype solutions to some of the country’s most challenging technical problems. All Riverside Research opportunities require U.S. Citizenship. The Riverside Research Information Technology (IT) team is seeking a highly skilled and experienced Linux System Administrator to support teams within the …

Description The Test and Training Enabling Architecture (TENA) program at Leidos is looking to add a Senior Linux System Administrator . Our mission is to develop tools for the United States Department of Defense test and training communities, to increase the speed of the development cycle, to get capabilities to the warfighter more rapidly. The Senior Linux System Administrator will work within a team engineers, developers and system administrators, adding new capabilities to our enclaves, as …

Are you passionate about human space exploration, understanding the origins of the universe, and working with a passionate and diverse team to make a difference? If you are, we need you! We need your talent, teamwork, and energy to help us achieve great things that inspire people all over the globe. We need you to bring creative ideas and diverse backgrounds to help us envision, shape, and deliver systems that will enable the exploration of space while benefiting people here on Earth. We are ex…

Description SAIC is recruiting for a Senior Linux Systems Administrator to join our program as a general technologist to support our NOAA GFDL program in Princeton, NJ serving the NOAA GFDL lab in a highly scientific user and mission driven facility. This individual would support both projects (60%) and user (40%) actives in a high interrupt tiered support environment requiring rapid response to the most complex customer systems inquiries. On a daily basis this individual may divide their time …

DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports public sector agencies and commercial enterprises around the globe. Recognized as a Top Workplace, DMI is committed to delivering secure, efficient, and cost-effective solutions that drive measurable results. Learn more at www.dminc…

Maximus is seeking a Windows / Linux System Administrator to manage and support internal-use telephony systems for our Homeland Security customer. This role provides technical leadership for the configuration, maintenance, and troubleshooting of enterprise telephony infrastructure, with responsibilities spanning operating systems, networking, security, and application support. This position is on-site and requires a Secret Clearance. Maximus TCS (Technology and Consulting Services) Internal Job…

At Barnes & Noble Education (“BNED”) we are dedicated to making tomorrow a better, more inclusive, and smarter world by servicing all who work in education. As a leading solutions provider for the education industry, we are committed to driving affordability, accessibility, and achievement at hundreds of academic institutions nationwide by ensuring millions of students are equipped for success in the classroom and beyond. Together, our teams work to elevate lives through education. To support o…

Job Description We put our customers first exemplified by our missions: We Protect Those Who Protect Us and We Innovate for Those Who Move the World. Sound like a team you want to be a part of? Come build your career with BAE Systems. BAE Systems is seeking a highly trained and motivated Principal Closed Area Systems Administrator to lead and manage classified IT infrastructure operations in support of national security missions. This role is pivotal in ensuring the integrity, security, and ava…

Job ID: 7819B Date Posted: July 20, 2026 Space Dynamics Laboratory (SDL) is seeking an experienced Linux System Administrator to design, implement, secure, and maintain systems and associated applications, services, and components. This is an on-site, non-remote position in our Albuquerque, NM location. Key Responsibilities: Achieves in-depth knowledge of company processes, systems, and networks Proactively monitors assigned systems to ensure high availability, optimum performance, and security…

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trus…

We are seeking a skilled and dependable Systems Administrator to join our team at the mid to senior level. This role carries direct responsibility for managing and maintaining enterprise Windows and Linux server infrastructure, endpoint management systems, and virtualized environments. The ideal candidate brings proven hands-on experience, strong problem-solving instincts, and the technical depth to operate independently while collaborating effectively across teams. Administer and maintain Mic…

Date Posted: 2026-07-01&xa;&xa; Country: United States of America&xa;&xa; Location: US-TX-MCKINNEY-513WC ~ 2501 W University Dr ~ WING C BLDG&xa;&xa; Position Role Type: Onsite&xa;&xa; 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​&xa;&xa; Security Clearance Type: Secret - Current&xa;&xa; Se…

PoP: March 1, 2026 – Feb 28, 2031 (at the discretion of the US govt) Clearance: Top Secret DO NOT APPLY IF YOU DO NOT HAVE AN ACTIVE CLEARANCE Background: This acquisition will benefit the USAF by providing the necessary workforce structure required to meet overall mission of Special Access Programs (SAPs) supporting AFLCMC/EBU Weapons Superiority Division (Robins AFB) efforts. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special A…

Date Posted: 2026-07-01 Country: United States of America Location: US-TX-MCKINNEY-513WC ~ 2501 W University Dr ~ WING C 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: Secret - Current Security Clearance Status: Active and existing sec…

Job Title: Tier III Operations Engineer Location: Onsite – Dallas, TX Area Clearance: Active TS/SCI with CI Poly Citizenship: U.S. Citizen Position Summary The Tier III Operations Engineer is responsible for maintaining the availability, performance, and reliability of mission-critical systems. This role serves as the highest level of operational support, providing advanced technical troubleshooting and incident resolution for complex infrastructure and application issues. The engineer collabor…

Summary We are seeking an experienced Red Hat Enterprise Linux 10 (RHEL 10) Consultant to provide expert-level consulting, optimization, and operational support for enterprise Linux environments. This is a 500-hour remote consulting engagement with the potential for extension based on project needs and performance. The consultant will serve as a trusted technical advisor, helping to improve system performance, optimize operating system configurations, and provide strategic guidance for enterpri…

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Manage Linux systems administration, network configuration, and troubleshooting with Cisco equipment. • Automate tasks using Ansible, Bash, and Python. • Implement containerization with Docker and Kubernetes. • Perform system hardening and security testing. Qualifications & Compensation: • Degree: Technical bachelor's degree or equivalent experience • Years of experience: 15 years • Tot…

Candidates must already possess an active Top Secret/SCI w/ Full Scope Polygraph to be considered. Summary: • Provide hands-on support for Oracle hardware with Solaris and Linux Operating Systems. • Troubleshoot hardware, firmware, and software problems. • Maintain ticketing queues for hardware and software requests. • Perform on-site equipment fixes and coordinate access for additional support. Qualifications & Compensation: • Degree: Technical bachelor's degree or equivalent experience • Year…