Refine Reset All
Sort by
Employer/Recruiter
1 – 20 of 2,863 jobs
Beyond New Horizons jobs

Overview Job Title: Sr. Linux System Administrator Location: Arnold AFB, TN Job Family Code: P – IT / Cyber Security / Network Systems Function/Branch: Engineering / Infrastructure Directorate: Engineering Tech & Support Position Type: Regular, Full-Time Pay Type: Exempt Grade:

Beyond New Horizons  29 days ago
Amentum jobs

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,

Amentum  28 days ago
ManTech jobs

General information Requisition # R69091 Locations USA-MD-Laurel Posting Date 07/07/2026 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time Description & Requirements Unlock the secrets of intelligence with MANTECH! Join a dynamic

ManTech  28 days ago
USG Corporation jobs

POSITION SUMMARY The person who fills this position will be responsible for installing, operating, and maintaining environments consisting of servers running Red Hat Enterprise Linux and VMware ESXi on HPE hardware and in Azure Cloud. These servers

USG Corporation  28 days ago
General Dynamics Information Technology jobs

Type of Requisition:Regular Clearance Level Must Currently Possess:Top Secret Clearance Level Must Be Able to Obtain:Top Secret/SCI Public Trust/Other Required:None Job Family:IT Infrastructure and Operations Job Qualifications: Skills:IT Troubleshooting, Linux Management, Linux Programming Certifications:None Experience:3 + years of

General Dynamics Information Technology  27 days ago
Altamira Technologies Corporation jobs

Linux System Administrator Altamira Technologies has a long and successful history providing innovative solutions throughout the U.S. National Security community. Headquartered in McLean, Virginia, Altamira serves the defense, intelligence, and homeland security communities worldwide by focusing on creating innovative

Altamira Technologies Corporation  27 days ago
ManTech jobs

General information Requisition # R69158 Locations USA-MD-Laurel Posting Date 07/08/2026 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time Description & Requirements Unlock the secrets of intelligence with MANTECH! Join a dynamic

ManTech  27 days ago
Trinity Global Consulting jobs

Clearance: TS-SCI w/CI Poly required Certifications: Current Security+ before start Level: T2 Responsibilities: Design, develop, and support cloud initiatives to support customer driven needs Responsible for user account management and infrastructure requirements. Maintain program owned applications

Trinity Global Consulting  27 days ago
Leidos jobs

Leidos-Dynetics, within our Corporate Information Security Office (CISO and reporting through our Digital Modernization sector, is seeking a motivated Linux Systems Administrator to become a part of our team. In this role, you will be responsible for ensuring the

Leidos  26 days ago
Peraton jobs

Responsibilities Peraton is seeking a Linux System Administrator to join our team in supporting our environmental information management and compliance enterprise software solutions. This position is in Clearfield, Utah. The System Administrator will help maintain Linux-based development, test, training and production environments

Peraton  22 days ago
RTX jobs

Date Posted:2026-07-15 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

RTX  20 days ago
Amentum jobs

Purpose and Impact: Amentum is seeking a motivated and experienced Linux Systems Administrator for a small, diverse team that provides end-to-end software, systems, and network engineering services to support Integrated Discovery Operations (IDO). You will lead, evolve, and maintain a

Amentum  20 days ago
SBT Global jobs

Company Description 1 yr Contract Onsite Pay Rate: ~$6,500~/month (DOE) Job Description Engineering of systems administration-related solutions for various project and operational needs. Install new/rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, etc. in

SBT Global  20 days ago
Sentinel jobs

Responsibilities Sentinel is seeking a Linux Systems Engineer for one of our strategic partners. This administrator is responsible to install, administer, and support Red Hat Enterprise Linux, VMware ESXi, HPE infrastructure, and Azure cloud environments that host critical Oracle and

Sentinel  19 days ago
RTX jobs

Date Posted:2026-07-15 Country:United States of America Location:US-AL-HUNTSVILLE-401 ~ 401 Jan Davis Dr NW ~ JAN DAVIS 401 Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance

RTX  19 days ago
Radiance Technologies jobs

Radiance Technologies is an employee-owned company with benefits that are unmatched by most companies. Employee ownership, generous 401K and profit sharing, health/dental/life/vision insurance benefits, interesting assignments, educational reimbursement, competitive salaries, and a pleasant work environment combine

Radiance Technologies  19 days ago
Leidos jobs

Are you interested in advancing your career in IT System Administration? Leidos-Dynetics, within our Corporate Information Security Office (CISO and reporting through our Digital Modernization sector, is seeking a motivated Linux Systems Administrator to become a part of our team.

Leidos  19 days ago
CACI International Inc jobs

Job Title: Linux Systems Administrator II 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 International Inc  18 days ago
American Systems jobs

Overview Are you Senior Applications Program Analyst 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

American Systems  18 days ago
ASM Research jobs

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.

ASM Research  15 days ago

Subscribe for job alerts and resources to make your job search easier!

Confirmation email sent to

Check your email and click on the link to start receiving your job alerts

Receive the latest job openings for:

linux system administrator jobs in us

You also might be interested in:

Automation

Journeyman

Scripting

Vulnerability

Transparency

Retirement Savings

Release Management

DHS

Configuration Management

System Administration

Confirmation email sent to

Check your email and click on the link to start receiving your job alerts

All Filters Apply
Sort by
Employer/Recruiter