Principal Linux Systems Administrator jobs

Pearl City, Hawaii

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Today

Job ID: 2617678 Location: Pearl City, HI, US Date Posted: 2026-10-07 Category: Information Technology Subcategory: Sys Administrator Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: TS/SCI Potential for Remote Work: ORA_ON_SITE Description SAIC is seeking a Red Hat Linux Systems Administrator located at the K. Mark Takai Pacific Warfighting Center on Ford Island in Hawaii to support USPACOM J76 t

Full-time

USD 120,001.00 - 160,000.00 per year

Senior Linux Systems Administrator

Tampa, Florida

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Today

Job Number: R0252098 Linux Systems Administrator, Senior The Opportunity: Your combination of people skills and system administrator knowledge makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the DoW? We're looking for a system administrator who specializes in Linux systems administration to help us operate and maintain our clients' Linux-based systems. We focus on growing as a team, so we'll share techniques, w

Full-time

USD 61,900.00 - 141,000.00 per year

Senior HPC Linux Systems Administrator - TS/SCI

Aberdeen, Maryland

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Today

Keep defense supercomputers running at peak performance as the senior Linux and cluster expert on-site in Aberdeen, MD, earning $180K-$220K base, with stock purchase, a generous 401(k) match and paid volunteer time. This Jobot Job is hosted by: Kurt Holzmuller Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $180,000 - $220,000 per year A bit about us: We're one of the world's largest enterprise technology companies and a leader in high-perf

Full-time

USD 180,000.00 - 220,000.00 per year

Linux Systems Administrator

Salt Lake City, Utah

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Today

Description We are looking for a Linux Systems Administrator to support and strengthen critical infrastructure in Salt Lake City, Utah. This role focuses on keeping Linux-based environments stable, secure, and efficient while helping resolve technical issues across systems and networks. The ideal candidate brings practical administration experience, sound networking knowledge, and a proactive approach to reliability and operational improvement. Responsibilities: Administer Linux servers by hand

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Full-time

USD 115,000.00 - 130,000.00 per year

Linux Systems Administrator - TS/SCI-FSP clearance

Fort Meade, Maryland

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Today

This Jobot Job is hosted by: Kurt Holzmuller Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $130,000 - $180,000 per year A bit about us: We are a leading global tech company on the cutting edge of cloud and data solutions. With a strong emphasis on innovation, inclusivity, and work-life balance, we foster a dynamic environment for career growth. With a global customer base including all sectors, from Fortune 500 to up-and-coming startups, w

Full-time

USD 130,000.00 - 180,000.00 per year

Linux Systems Administrator

Milwaukee, Wisconsin

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Today

Description Robert Half is seeking a Senior Systems Administrator to support and maintain a complex mix of Linux, Windows, virtualization, cloud, and application environments. This role is ideal for someone who enjoys working across a broad technology stack, solving challenging infrastructure issues, and partnering directly with both internal stakeholders and external customers. You'll play a key role in system administration, automation, application support, security, performance optimization,

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Full-time

USD 110,000.00 - 140,000.00 per year

HPC Linux Systems Administrator - Top Secret Clearance

Vicksburg, Mississippi

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Today

This Jobot Job is hosted by: Kurt Holzmuller Are you a fit? Easy Apply now by clicking the "Apply Now" button and sending us your resume. Salary: $120,000 - $180,000 per year A bit about us: We are a leading global tech company on the cutting edge of cloud and data solutions. With a strong emphasis on innovation, inclusivity, and work-life balance, we foster a dynamic environment for career growth. *This is a 100% onsite role and requires a TS or TS/SCI clearance** With a global customer base

Full-time

USD 120,000.00 - 180,000.00 per year

Linux Systems Administrator

Fort Meade, Maryland

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Today

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 administrat

Full-time

USD 120,800.00 - 265,800.00 per year

Linux Systems Administrator

Sterling, Virginia

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Today

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 to join our Infrastructure Team supporting our family of Electronic Warfare (EW) systems. Support our end-to-end Linux environment, including engineering workstations, buil

Full-time

USD 86,600.00 - 181,800.00 per year

Linux Systems Administrator

Chantilly, Virginia

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Today

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 * * * The Opportunity: CACI is seeking a Linux Systems Administrator to support a long term, multi-year, high performing program. A qualified candidate will assist in the installation, configuration and deployment of a new PeopleSoft implementation. Resp

Full-time

USD 90,300.00 - 189,600.00 per year

Linux Systems Administrator PR Lead - Kwajalein Atoll

Huntsville, Alabama

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15d ago

RGNext employees execute and report on theater and strategic offensive and defensive ballistic missile testing and support space situational awareness operations and experiments, using a wide array of highly sophisticated radar, telemetry and optical sensors to meet the needs of our nation in defending the United States and its interests. This overseas, accompanied position, is located on Kwajalein Atoll in the Marshall Islands. What You Will Do: Serve as the Linux Systems Administrator Principa

Full-time

68000 - 105000

Linux Systems Administrator

Huntsville, Alabama

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Today

Overview i3 is seeking a Linux Systems Administrator to support an Army Contract. The Linux Systems Administrator will provide technical expertise supporting information system components, infrastructure integration and maintenance. Responsibilities Administer and maintain Red Hat platforms, including daily operations such as Workstation monitoring, user management, resource allocation, patching, upgrades, and troubleshooting platform issues to minimize downtime.Perform advanced Linux (RHEL) s

Full-time

USD 800.00 per week

Linux Systems Administrator / Engineer

Cranberry, North Carolina

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Today

Are you interested in being part of an innovative team that supports Westinghouse's mission to provide clean energy solutions? At Westinghouse, we recognize that our employees are our most valuable asset and we seek to identify, attract and recruit the most qualified talent while recognizing and encouraging the value of diversity in the global workplace. About the role: As a Principal Linux Systems Engineer you will perform complex Linux systems administration, hardware qualification and deliv

Full-time

USD 103,200.00 - 129,000.00 per year

Linux Systems Administrator

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

USD 99,000.00 - 206,000.00 per year

Linux Systems Administrator 2

Fort Meade, Maryland

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Today

T-Rex is looking for a fully cleared Linux System Administrator 2 to work on a program in the Fort Meade, Maryland area in support of the Intelligence Community. Responsibilities: Work in an environment where you can help design the architecture and develop solutions to meet organizational needs. Looking for an innovative, motivated individual to join a small, talented, and hardworking Linux team in a hybrid cloud environment. This team creates, maintains, and troubleshoots Linux instances on m

Full-time

USD 170,000.00 - 200,000.00 per year

Linux Systems Administrator (5758)

Maryland

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Today

SMX is seeking a Linux System Administrator to support an embedded lab environment at NAS Patuxent River. This role provides direct hands-on support for hardware, operating systems, and applications within an embedded environment. The Linux System Administrator will ensure deployed lab systems are fully compliant with DoD security and configuration standards by performing patching, scanning, backup, and STIG application. The ideal candidate will have strong Linux expertise, practical scripting

Full-time

USD 95,000.00 - 145,000.00 per year

Senior Linux Systems Administrator

Dayton, Ohio

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Today

If you're interested in being a part of an extraordinary mission, working with our customer who runs the DoW's largest supercomputing centers and operating some of the most powerful supercomputers in the world, we could use your experience and enthusiasm! You will be providing your Linux Systems Administration expertise to ensure DoW scientists have reliable access to these critical resources and in turn, will be directly supporting the warfighter. All work will be performed at our customer's s

Full-time

USD 92,300.00 - 166,850.00 per year

Linux Systems Administrator (5589)

Maryland

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Today

Full-time

USD 95,000.00 - 145,000.00 per year

Linux Systems Administrator

Annapolis, Maryland

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Today

Red Arch Solutions is hiring a System Administrator on a priority program in Annapolis Junction, MD. The System Administrator shall be responsible for providing support for a large-scale Linux system including installation of COTS/GOTS/FOSS software, day-to-day operations, monitoring, and problem resolution for all the compute, network, memory, and storage system components. In addition, the System Administrator shall maintain the system security integrity and configure network components, along

Full-time

USD 185,000.00 - 200,000.00 per year

Senior Linux Systems Administrator

Long Beach, California

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Today

Vast is developing next-generation space stations and space infrastructure using an incremental, hardware-rich, and low-cost approach. Vast is rapidly developing its multi-module Haven Station to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Haven Demo's 2025 success made Vast the only operational commercial space station company

Full-time

USD 123,000.00 - 174,600.00 per year