Linux Systems Administrator Jobs in USA

ResponsibilitiesPeraton is seeking a Linux Systems Administrator with an active TS/SAP clearance to join our team supporting mission-critical operations. The ideal candidate will manage maintain and enhance secure Linux-based environments while ensuring uptime and performance for essential applicati...

ResponsibilitiesAs the worlds leading mission capability integrator and transformative enterprise IT provider we deliver trusted and highly differentiated national security solutions and technologies that keep people safe and secure. Peraton serves as a valued partner to essential government agencie...

Job ID: 7253Date Posted: April 22 2026Space Dynamics Laboratory (SDL) is seeking an experienced System Administrator skilled in Linux to implement secure and maintain systems and associated applications services and components. This position will primarily focus on implementing and then supporting L...

OverviewAMERICAN SYSTEMS a 100% employee-owned federal government contractor is seeking a Linux Systems Administrator with Tier 1 & 2 experienceto support a classified High-Performance Computing (HPC) environment in Arlington VA.Are you an experienced Linux administratorwith strong system fundamenta...

OverviewAMERICAN SYSTEMS a 100% employee-owned federal government contractor is seeking a Linux Systems Administrator with Tier 1 & 2 experienceto support a classified High-Performance Computing (HPC) environment in Arlington VA.Are you an experienced Linux administratorwith strong system fundamenta...

Linux Systems Administrator (Mid-Level or Senior)Company:The Boeing CompanyThe Boeing Companys Specialized Infrastructure Operations Organization is currently seeking a Linux Systems Administrator (Mid-Level or Senior) to join the team in Berkeley MO.This position will install operate secure and mai...

ResponsibilitiesWe are seeking a Senior Linux Systems Engineer with a strong background in Linux administration and commonopen-source tools and software to join our team. This is an on-site position. Candidates must be self-starters whoenjoy working in fast-paced and dynamic environments. The ideal...

ResponsibilitiesWe are seeking a Senior Linux Systems Engineer with a strong background in Linux administration and commonopen-source tools and software to join our team. This is an on-site position. Candidates must be self-starters whoenjoy working in fast-paced and dynamic environments. The ideal...

ResponsibilitiesWe are seeking a Senior Linux Systems Engineer with a strong background in Linux administration and commonopen-source tools and software to join our team. This is an on-site position. Candidates must be self-starters whoenjoy working in fast-paced and dynamic environments. The ideal...

Responsibilities & QualificationsRESPONSIBILITIESThe Systems Administratoris expected to be able to accomplish the following:Monitors andmanagessystem resources including CPU usage disk usage and response times tomaintainoperating efficiency.Performs systems security administration functions includi...

ResponsibilitiesPeraton is seeking a Senior Systems Administrator to support enterprise infrastructure operations for NASAs Deep Space Network (DSN) Administrative Network in Monrovia CA. This role is responsible for provisioning configuration operations maintenance and support of enterprise systems...

ResponsibilitiesPeraton is seeking a Senior Systems Administrator to support enterprise infrastructure operations for NASAs Deep Space Network (DSN) Administrative Network in Monrovia CA. This role is responsible for provisioning configuration operations maintenance and support of enterprise systems...

Job Description IERUS specializes in electromagnetic spectrum technologies and design for RF IR and optical applications. IERUS also supports customers with a diverse set of competencies including software development air and missile defense and systems engineering. IERUS develops value...

About us: At Plexus our vision is to help create the products that build a better world. Driven by a passion for excellence we partner with leading Aerospace/Defense Healthcare/Life Sciences and Industrial companies to design manufacture and service some of the worlds most transformative products in...

Responsibilities & QualificationsRESPONSIBILITIESThe Systems Administratoris expected to be able to accomplish the following:Monitors andmanagessystem resources including CPU usage disk usage and response times tomaintainoperating efficiency.Performs systems security administration functions includi...

As an employee-owned company DMA prioritizes employees. Low turnover rates and tenured teams are living proof:2025 Great Places to Work CertifiedEmployee stock ownership program eligibility begins on day one of employment (ESOP contribution is targeted at 6% of your annual compensation)Company paid...

Requisition Number:26724Required Travel: 0 - 10%Employment Type:Full Time/Salaried/ExemptAnticipated Salary Range:$90000.00-$105000.00Security Clearance:TS/SCILevel of Experience:MidThis opportunity resides with Warfare Systems (WS) a business group within HIIs Mission Technologies division. Warfare...

ABOUT THE JOB:We are seeking a Systems Administrator to own the deployment maintenance and support of software and tools across our manufacturing lines. This role blends traditional system administration with elements of network administration focusing on ensuring production systems are secure relia...

Responsibilities & QualificationsRESPONSIBILITIESThe Senior Systems Administratoris expected to be able to accomplish the following:Monitors andmanagessystem resources including CPU usage disk usage and response times tomaintainoperating efficiency.Performs systems security administration functions...

ABOUT THE JOBWHAT YOULL DOWe are seeking an AV Systems Administrator to maintain and support Andurils AV infrastructure ensuring all conferencing systems are operational and users are well-trained. The position is based at our Washington DC location but may involve travel to other sites.Oversee AV i...