Windows/Linux System Administrator Jobs

1 - 20 of 4,455 Jobs

Linux/Windows System AdministratorJob Title - Linux/Windows System Administrator

Lockheed Martin CorporationCompany Name - Lockheed Martin Corporation

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Moorestown, New Jersey, USA

Full-time

Job Description WHAT WE'RE DOING The AEGIS O&M program is seeking a Linux/Windows System Administrator in Moorestown NJ. This facility houses both Navy and Lockheed Martin personnel. It primarily serves as a research and development facility for the AEGIS Combat System. AEGIS is a revolutionary naval air defense system capable of guarding against missile threats from land, sea and air. WHO WE ARE Our current team handles everything from: Periodically travelling to different customer sites ar

Linux System AdministratorJob Title - Linux System Administrator

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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Aberdeen Proving Ground, Maryland, USA

Full-time

Job Number: R0221928 Linux System Administrator 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 U.S. Government? We're looking for a system administrator who specializes in Linux with skills in Linux FIPS mod, full disk encryption using LUKS, TANG, Clevis, VMWare, and Active Directory. As a Linux system administrator on our

Senior Linux System AdministratorJob Title - Senior Linux System Administrator

LeidosCompany Name - Leidos

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Orlando, Florida, USA

Full-time

Are you an experienced Senior Linux System Administrator looking for your next challenge? Your search ends here! We have an exciting opportunity for you to support several Programs in the Orlando Area. Your expertise will guide the definition, implementation, and delivery of capability focused on Cyber Training systems and Synthetic Environment Generation. You'll have the chance to work with a broad range of systems, providing overall support for various critical systems. Join our team and make

Senior Linux System AdministratorJob Title - Senior Linux System Administrator

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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Columbia, Maryland, USA

Full-time

Job Number: R0219640 Linux System Administrator, Senior The Opportunity: Your technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of Defense? We're looking for a Cross Domain Platform System Administrator to help us design, deploy, and maintain Cross Domain Solutions for an enterprise environment that supports critical cybersecurity mission customers. As a Linux system administrato

Linux System AdministratorJob Title - Linux System Administrator

SwanktekCompany Name - Swanktek

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Richmond, Virginia, USA

Contract

KEY RESPONSIBILITIES In addition to other occasional tasks, the candidate s key responsibilities will be: Installing, building, maintaining, provisioning, upgrading, and enhancing servers running RHEL versions 7, 8, and 9.x, as well as OpenShift environments. Configuring and maintaining HPE ProLiant servers running SELinux, following performance and security best practices. Supporting and maintaining existing shell scripting tools and creating new scripts as needed. Collaborating with DBAs a

Mid Linux System AdministratorJob Title - Mid Linux System Administrator

Booz Allen HamiltonCompany Name - Booz Allen Hamilton

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Washington, District of Columbia, USA

Full-time

Job Number: R0221402 Linux System Administrator, Mid Key Role: Provide hands-on experience managing Linux-based IT components. Provide network and systems administration support for all cybersecurity systems in the Enterprise. Provide systems administration and engineering support for non-Windows operating systems such as Linux-based systems, including Redhat Enterprise Linux (RHEL). Support the networking administration focused on enterprise infrastructure systems such as Cisco and Cisco ISE,

HPC Linux System AdministratorJob Title - HPC Linux System Administrator

Motion Recruitment Partners, LLCCompany Name - Motion Recruitment Partners, LLC

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Princeton, New Jersey, USA

Full-time

A top notch technology company is growing and looking to hire a HPC System Administrator to join their infrastructure team. The system administrator plays a key role in overseeing and supporting a complex high-performance computing (HPC) environment. Responsibilities include designing, configuring, and maintaining hardware, software, networking, storage, and cluster operations. This person will support HPC workflows, enforces security practices, and ensures optimal performance, uptime, and relia

RHEL Linux System Administrator in Richmond, VA (hybrid)Job Title - RHEL Linux System Administrator in Richmond, VA (hybrid)

Activesoft, Inc.Company Name - Activesoft, Inc.

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Richmond, Virginia, USA

Contract

Must Haves: : Bachelor's degree in Computer Science, Software Engineering, or a related field. 5+ years of experience as a Linux System Administrator. Hands-on experience with configuration, administration, and installation of RHEL servers in a distributed environment, preferably on HPE equipment. Experience must include hardware buildout, firmware updates, OS upgrades, and capacity planning across all phases of the hardware life cycle. Strong RHEL and scripting experience (minimum of 5 years) w

Sr. Principal Linux System AdministratorJob Title - Sr. Principal Linux System Administrator

RaytheonCompany Name - Raytheon

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Aurora, Colorado, USA

Full-time

Date Posted: 2025-07-01 Country: United States of America Location: CO108: 16201 East Centretech Parkway 16201 East Centretech Parkway Building S78, Aurora, CO, 80011 USA 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.Security Clearance: TS/SCI with Polygraph Sr. Principal Linux System Administrator - Aurora, CO, must have an active TS/SCI CI Poly

Linux System Administrator/RHELJob Title - Linux System Administrator/RHEL

Motion Recruitment Partners, LLCCompany Name - Motion Recruitment Partners, LLC

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Moorestown, New Jersey, USA

Full-time

A growing organization in South Jersey is looking to hire a Senior System Administrator to work in their Linux environment. In this role, you will be responsible for the design, implementation, and management of IT hardware, software, and networks to ensure operational efficiency and security. Duties include performing data backup operations in compliance with recovery objectives, applying timely security patches, evaluating and recommending emerging technologies, and configuring IT systems for

Senior Linux System AdministratorJob Title - Senior Linux System Administrator

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Livermore, California, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Top Secret/SCI Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph Public Trust/Other Required: None Job Family: Systems Administration Job Qualifications: Skills: Linux, Microsoft Server Operating Systems, Microsoft Windows Environment Certifications: None Experience: 8 + years of related experience ship Required: Yes Job Description: $10K Sign-on bonus A Senior Linux System Administrator Maintains an o

Senior Linux System AdministratorJob Title - Senior Linux System Administrator

General Dynamics Information TechnologyCompany Name - General Dynamics Information Technology

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Livermore, California, USA

Full-time

Linux System AdministratorJob Title - Linux System Administrator

LeidosCompany Name - Leidos

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Alexandria, Virginia, USA

Full-time

Leidos is seeking a System Administrator to support a large enterprise IT contract for the DOD. This role requires an individual that has technical experience with administering Linux and Windows servers within a VMware virtual environment. This individual should be detail oriented in order to capture customer inquiries appropriately. This role is responsible for interacting with other administrators to handle service inquiries and problems. Duties include examining customer problems and suggest

Linux System AdministratorJob Title - Linux System Administrator

LeidosCompany Name - Leidos

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San Diego, California, USA

Full-time

The Maritime Solution Systems Portfolio within the Maritime Systems Division (MSD) is seeking an experienced, dynamic, and highly capable Linux system administrator to join the Leidos team at a customer site in San Diego, CA. The business activities within this portfolio include underwater vehicle systems, maritime sensors, supporting information technology and engineering services for complex maritime applications, and the development and support of underwater data acquisition and telemetry sys

Security Administrator (Networks, Windows, and Linux) - $66 1099/ $58 W2 - ONSITE (Locals Only)Job Title - Security Administrator (Networks, Windows, and Linux) - $66 1099/ $58 W2 - ONSITE (Locals Only)

Chandra Technologies, Inc.Company Name - Chandra Technologies, Inc.

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Carson City, Nevada, USA

Contract

Job Description: Only W2/ 1099 Resumes will be considered Location Requirement: 100% onsite. Local candidates only RESPONSIBILITIES: Documentation and Runbook Development Develop and maintain detailed documentation and playbooks for daily, weekly, and monthly information security operations, including incident response procedures and system maintenance tasks.Create and update checklists for operational tasks, such as patch management, vulnerability scans, and access control reviews.Format and st

Linux System Administrator (NETPLAN)Job Title - Linux System Administrator (NETPLAN)

EclaroCompany Name - Eclaro

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Remote

Contract

ECLARO is a company that delivers talent. We provide fully customizable, comprehensive talent acquisition and management of seasoned professionals through a number of business models, including: Consulting, Professional Hire, Global Integrated Delivery and Managed Services. Kindly email with a Word resume along with the position ID number, your hourly rate and availability. Job Title: Linux System Administrator Location: Remote Duration: 6 Months (Contract) $60/hour W2 25-04495 Preferred Backg

Senior Linux System AdministratorJob Title - Senior Linux System Administrator

RTX CorporationCompany Name - RTX Corporation

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Tucson, Arizona, USA

Full-time

Date Posted: 2025-07-17 Country: United States of America Location: AZ848: RMS AP Bldg 848 1151 East Hermans Road Building 848, Tucson, AZ, 85756 USA 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.Security Clearance: DoD Clearance: Secret Senior Linux System Administrator Tucson, AZ. Must have an active secret clearance we offer relocation! About US: A

Linux System AdministratorJob Title - Linux System Administrator

RTX CorporationCompany Name - RTX Corporation

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El Segundo, California, USA

Full-time

Date Posted: 2025-07-08 Country: United States of America Location: CA323: 2000 E Imperial Hwy Bldg R01 2000 East Imperial Highway Building R01, El Segundo, CA, 90245 USA 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.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - t

Jr. Linux System Administrator (TS/SCI)Job Title - Jr. Linux System Administrator (TS/SCI)

Maxar Technologies Holdings IncCompany Name - Maxar Technologies Holdings Inc

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Herndon, Virginia, USA

Full-time

Please review the job details below. Maxar is currently seeking a Jr. Linux System Administrator to join our team. This role will be performed in our Maxar facility located in Herndon, Virginia. As a Maxar team member, you will have the opportunity to closely support our mission partners, and your work will have a direct impact on mission imperatives. In this role, you'll work as part of our infrastructure team and you will work closely with our software development DevOps and cybersecurity tea

Linux System Administrator (Onsite) (DoD Secret Clearance)Job Title - Linux System Administrator (Onsite) (DoD Secret Clearance)

RTX CorporationCompany Name - RTX Corporation

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St. Petersburg, Florida, USA

Full-time

Date Posted: 2025-07-10 Country: United States of America Location: FL915: St. Petersburg - Bldg D 7401 22nd Ave N. Building D, St. Petersburg, FL, 33710 USA 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.Security Clearance: DoD Clearance: Secret We have an immediate career growth opportunity with our Information Workplace Services team for a talented Li