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641 system administrator jobs found

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General Dynamics Mission Systems, Inc
Mar 11, 2026
Linux System Administrator (TS/SCI) - Service Desk
General Dynamics Mission Systems, Inc Fort Belvoir, VA, USA
Basic Qualifications Bachelor’s degree in a specialized area; or equivalent is required plus a minimum of 2 years of relevant experience; or Master's degree. CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is required at time of hire. Must be able to obtain Polygraph. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position   Role and Position Objectives:  Join our team as a Linux Systems Administrator (Service Desk) for Space, Cyber and Intelligence Systems! You'll work with a diverse team managing enterprise systems, specialized Linux OS, cross-domain solutions, and boundary devices.   What You’ll Experience: Hands-on work with RedHat Linux, system/server builds, and...
SAIC
Mar 11, 2026
SOC System Administrator
SAIC CO
Description SAIC is seeking qualified candidates to support Space Force's Resilient Missile Warning/ Missile Tracking (Resilient MWT) Ground Management Integration (GMI) program. Qualified candidates will help develop and deliver space operations for the integrated resilient ground segment of a USSF mission. Help integrate, enhance, and sustain key mission systems, including the MEO System Operations Center (MSOC) and its 24/7/365 operations, while supporting launches, early orbit operations, and mission sustainment under a Government-owned, Contractor-operated (GOCO) model. The ideal candidate has space operations floor experience, has developed work procedures, checklists and training materials and holds mission knowledge. Role Responsibilities: The System Administrator (SA) maintains operations of multi-user computer and peripheral systems, including network administration within the scope of the site's connectivity network. The SA is responsible for...
SAIC
Mar 11, 2026
Campus Mobility System Administrator
SAIC FL
Description SAIC has an immediate opening for a Senior Campus Mobility System Administrator to support the Special Operation Command Information Technology Enterprise Contract (SITEC) - This critical position is located at the SOCOM Headquarters at MacDill AFB in Tampa, FL. The purpose of the Special Operations Forces Information Technology Enterprise Contract(SITEC) 3 Enterprise Operations and Maintenance (EOM) Task Order (TO) is to provide USSOCOM, its Component Commands, its Theater Special Operations Commands (TSOCs),and its deployed forces with Operations and Maintenance (O&M) services to maintain Network Operations (NetOps); maintain systems and network infrastructure; provide end user and common device support; provide configuration, change, license, and asset management; conduct training, and perform Install, Move, Add, Change (IMACs) services. The responsibilities and tasks associated with each requirement play a pivotal role to USSOCOM, the CIO/J6 organization,...
Lockheed Martin
Mar 09, 2026
System Administrator
Lockheed Martin Kirtland Air Force Base, NM, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreaking technology, advanced manufacturing processes, and a world-class team of professionals. Our mission-driven approach and unwavering dedication to excellence ensure that we continue to deliver superior products and solutions to our customers around the world. THE WORK Lockheed Martin is seeking a System Administrator to join our Information Technology team supporting the Air Force Special Operations (AFSOC) Air Commando Training Support (ACTS) contract. We are a dynamic and diverse team...
Lockheed Martin
Feb 26, 2026
Training Simulator System Administrator /F-35 / Ghedi, Italy
Lockheed Martin Orlando, FL, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreaking technology, advanced manufacturing processes, and a world-class team of professionals. Our mission-driven approach and unwavering dedication to excellence ensure that we continue to deliver superior products and solutions to our customers around the world. THE WORK Foreign Assignment: This position will offer a long-term deployment to a foreign country as a Training System Simulator System Administrator for the F-35. The successful candidate will support the sustainment,...
General Dynamics Mission Systems, Inc
Feb 23, 2026
Dev Ops System Administrator
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Education Requirements: Bachelor’s degree in Computer Science, a related field or equivalent experience is required plus a minimum of 8 years of relevant experience; or Master's degree plus 6 years of relevant experience. Clearance Requirements: Department of Defense TS/SCI with Polygraph security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Put your engineering talent to the ultimate test. At General Dynamics Mission Systems, we create the technologies, products and services that help our service members, intelligence analysts and first responders keep our nation safe. The work we do is so advanced our teams often redefine what’s...
Odyssey Systems Consulting Group
Jan 28, 2026
Full time
Journeyman System Administrator
Odyssey Systems Consulting Group Oklahoma City, OK, USA
Position Summary Odyssey Systems has an exciting opportunity for a Journeyman System Administrator  providing support to the Air Force Life Cycle Management Center/PEO Digital Directorate (AFLCMC/HB). The Air Force Program Execution Office for PEO Digital (AFPEO/HB) has the collective Air Force Materiel Command (AFMC) mission responsibility to manage and execute the modernization, development, testing, production, fielding, and sustainment of the PEO Digital portfolio, which includes over 130 programs for the United States Air Force (USAF) and foreign allies. AFLCMC/PEO Digital Directorate is headquartered at Hanscom Air Force Base, MA with geographically separated operating units CONUS and OCONUS.   This is a full time position located at Tinker AFB, OK.   ***This position is contingent upon position award***   Responsibilities Duties includ e, but not limited to:  Provide system administration of network,...
SAIC
Mar 11, 2026
System Administrator
SAIC FL
Description JOB DESCRIPTION : SAIC is searching for a Systems Administrator to support one of the foundational networks in the Joint Expeditionary Command and Control (JEXC2) family of systems.JEXC2 systems are made up of various command, control, communications, computers and intelligence subsystems and networks, including associated infrastructure and communications equipment. The program is aimed at supporting the military's bid to achieve a Joint All-Domain Command and Control capability, which is the concept of connecting sensors across all domains, including space and cyberspace, into a single network. Work will be performed onsite in Panama City Beach, FL . Local candidates are encouraged to apply. The ideal candidate will have a strong background in virtualization technology and demonstrable experience working with VMware products. You will design, configure and support a virtual system where you will maintain its operational state, perform upgrades and...
SAIC
Mar 11, 2026
Infrastructure System Administrator
SAIC CA
Description SAIC is seeking an experienced Systems Administrator to join our Technical Engineering and Design Department in support of our United States Air Force customer. We have positions available in San Diego and Honolulu. Responsible for asset installation/configuration, operation and maintenance of systems hardware, software and related infrastructure. Configure and manage operating systems (Windows and Linux), applications (commercial and government), networks (IPs, subnets, etc.), and network equipment (switches). Configure and manage DOD and IC standard distributed authentication services. Build up systems from "bare metal" in alignment with accredited baselines. Ensure that system hardware, operating systems, software systems and related procedures adhere to government policies. Perform regular security monitoring to identify any possible intrusions. Perform daily backup operations. Perform regular file archival and purge, as...
SAIC
Mar 11, 2026
Infrastructure System Administrator
SAIC HI
Description SAIC is seeking an experienced Systems Administrator to join our Technical Engineering and Design Department in support of our United States Air Force customer. We have positions available in San Diego and Honolulu. Responsible for asset installation/configuration, operation and maintenance of systems hardware, software and related infrastructure. Configure and manage operating systems (Windows and Linux), applications (commercial and government), networks (IPs, subnets, etc.), and network equipment (switches). Configure and manage DOD and IC standard distributed authentication services. Build up systems from "bare metal" in alignment with accredited baselines. Ensure that system hardware, operating systems, software systems and related procedures adhere to government policies. Perform regular security monitoring to identify any possible intrusions. Perform daily backup operations. Perform regular file archival and purge, as...
Lockheed Martin
Mar 06, 2026
F-22 IMIS System Administrator (Entry Level)
Lockheed Martin Nellis Air Force Base, NV, USA
Description: Join the Lockheed Martin Aeronautics Field Sustainment Team as an IT Systems Administrator for our Nellis Air Force Base, Nevada office. As critical members of the F-22 Field Operations Team, all Integrated Maintenance Information Systems (IMIS) Administrators must be able to: • Obtain and maintain Special Access Program clearance required for program access • Capable of working various shift hours to include weekends to support customer mission requirements. • Candidates offered a position may be required to complete a pre-employment medical exam that is designed to ensure capability to deploy with our military customer, which may be to austere environments with limited access to medical care. A Day in the Life: As an IMIS Administrator with our F-22 IMIS team partnering with our customer, you will wear many hats; system admin duties, data management duties, network admin duties and mission planning admin duties. IMIS Administrators are generally the first point of...
Lockheed Martin
Feb 05, 2026
Flight Test System Administrator
Lockheed Martin Edwards Air Force Base, CA, USA
Description: We are Lockheed Martin We are seeking a highly motivated IT Systems Engineer to support mission critical flight test and simulation environments, including the Multi-ship Virtual Development Lab (MVDL). This role blends traditional enterprise IT administration with hands-on support of advanced simulator systems used in test and evaluation. The ideal candidate is comfortable working across Windows Server and Linux environments, excels at technical troubleshooting, and has experience supporting cybersecurity and vulnerability management efforts in regulated or mission focused environments. Key Responsibilities • Administer, maintain, and troubleshoot Windows Server systems supporting flight test equipment and simulators • Administer and support Linux systems used in simulation and test environments • Perform system hardening, patching, and vulnerability remediation in coordination with cybersecurity requirements • Conduct and support vulnerability scanning using...
Lockheed Martin
Mar 11, 2026
System Administrator
Lockheed Martin Eglin Air Force Base, FL, USA
Description: WHO WE ARE Lockheed Martin is a global leader in aerospace, defense, and technology solutions, dedicated to pushing the boundaries of innovation and shaping the future of the industry. With a rich legacy of excellence and a commitment to delivering advanced capabilities to our customers, we are proud to be at the forefront of cutting-edge technology and engineering. WHAT WE'RE DOING At Lockheed Martin, we're revolutionizing the aerospace and defense sector through groundbreaking technology, advanced manufacturing processes, and a world-class team of professionals. Our mission-driven approach and unwavering dedication to excellence ensure that we continue to deliver superior products and solutions to our customers around the world. THE WORK Duties include, but are not limited to, being responsible for assisting in defining, developing, configuring, and supporting computer applications and training environments. This role involves installing, setting up, and...
Lockheed Martin
Feb 27, 2026
Linux System Administrator, Stf / TS/SCI / Onsite: CO
Lockheed Martin Littleton, CO, USA
Description: Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 employees work with our partners around the world to bring the latest technology to our customers’ toughest challenges. Headquartered in Bethesda, MD, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span 70 countries. This Enterprise Operations (EO) position supports the Lockheed Martin Space division located in Denver, CO. The selected candidate will be responsible for providing support to the critical programs under the responsibility of the Space Division. This IT professional will ensure that the Lockheed Martin IT systems are managed, controlled, and compliant with the Corporate Information Protection Manuals (CIPM). This includes upgrades, operations and maintenance, hardware and software installations, and service requests (servers, workstations, containers,...
Lockheed Martin
Feb 25, 2026
Level 2 System Administrator / Secret Clearance / Onsite - Troy, AL
Lockheed Martin Troy, AL, USA
Description: Are you ready to invent the future? Lockheed Martin is on a journey of digital transformation as we leverage our data, modernize our processes and advance technology to maintain our position as the world’s Aerospace and Defense leader. We are leveraging emerging, digitally-enabled capabilities to lower cost, speed up development time and create disruptive solutions to best serve our customers and stakeholders. We’re bringing the 4th Industrial Revolution to every role in the company. We are assembling a team of change agents to tackle the hardest technical challenges that come with digital transformation. We are looking for highly motivated, proactive and enthusiastic individuals to join and contribute significantly to the successful implementation and enablement of this journey for our Lockheed Martin Missiles and Fire Control Team (MFC). This role is for a Technical Support and Systems Administration role at MFC supporting DoD critical programs on engineering...
Lockheed Martin
Feb 06, 2026
Linux System Administrator, Stf - TS/SCI W/Poly- Onsite: Sunnyvale, CA
Lockheed Martin Sunnyvale, CA, USA
Description: This Classified IT Operations position supports Lockheed Martin Space. The selected candidate will be responsible for upgrades, operations and maintenance, hardware and software installations, and service requests (servers, workstations, containers, networking, and storage), as well as continuity of operations (backups and verified restore capabilities). In this position, the chosen candidate will utilize their system administration and architecture skills as primary IT support for several classified environments. •Candidate must have a TS/SCI security clearance with an active CI Poly •Install/configure Linux operating systems and software applications •Perform periodic audits of system security settings •Install operating system security patches and firmware updates •Create/manage security groups •Coordinate hardware repair activities •Diagnose and resolve hardware/software problems/issues •Create scripts to automate system administration tasks •Provision virtual...
SAIC
Mar 11, 2026
Systems Administrator
SAIC DC
Description SAIC, a leading provider of systems engineering & integration, systems development & deployment, intelligence analysis and targeting, and training solutions for the Intelligence Community, is seeking creative and dedicated professionals to fulfill their career goals and objectives while delivering mission excellence on programs of national importance. SAIC is seeking System Administrators to join the Machine-assisted Analytic Rapid-repository System (MARS) Advanced Development Operations (DevOps) and Sustainment Support (ADOS) program and provide on-site technical and administrative support to facilitate operations of critical MARS infrastructure and services. This effort focuses on providing a comprehensive set of System/ Software Engineering and IT Services to maintain, sustain, enhance, and improve/ modernize MARS. The ideal candidate will be located in the National Capital Region. Please note that this is contingent upon contract award,...
SAIC
Mar 11, 2026
Senior Systems Administrator
SAIC AK
Description SAIC is looking for an experienced Senior System Administrator for the Network Information Technology Enterprise Services (NITES) contract to serve as the onsite liaison and subject matter expert for the NORAD & USNORTHCOM information technology enterprise. The ideal candidate will possess strong expertise in virtual enterprise solutions and Windows Server and Desktop, basic networking, securing enterprise environments, Hypervisor expertise and Microsoft domain services management, along with proficiency in collaboration tools such as SharePoint and Teams. Key Responsibilities: Install, configure, and maintain Windows Server environments, including Active Directory and Group Policy management. Manage and optimize VMware and/or Nutanix virtualization technologies. Implement and maintain system security protocols in accordance with DoD standards. Monitor network performance and troubleshoot connectivity issues. Perform system patching...
Lockheed Martin
Mar 11, 2026
Systems Engineer ~ Onsite in Grand Prairie, TX- Clearance Required
Lockheed Martin Grand Prairie, TX, USA
Description: This position is for a senior classified information system administrator with experience in system configuration and IT compliance with background in cyber security, and IT compliance. This position supports multiple projects / internal customers. Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems, and information technology related responsibilities including design, development, and analysis of computer systems or programs based on and related to user or system design specifications; applying systems analysis techniques and procedures, including consulting with users to determine hardware, software, or system functional specifications. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance and disposal. Ensures the logical and systematic conversion of customer or product...
Lockheed Martin
Mar 11, 2026
Mult Fnc Info Sys Admin (Level 3):System Admin, JRB Forth Worth
Lockheed Martin Fort Worth, TX, USA
Description: Join the Lockheed Martin Aeronautics Field Sustainment Team. Our customers include both the U.S. Military and international governments and organizations. Our global reach and technical depth offer an endless amount of opportunities for up-and-coming Autonomic Logistics Information Systems (ALIS) or Mission Planning Environment (MPE) professionals seeking a place to make their mark – or for seasoned Autonomic Logistics Information Systems (ALIS) or Mission Planning Environment (MPE) professionals seeking their next career challenge. ALIS/MPE Administrators directly support JSF operations by assuring the integrity of data stored within the system by maintaining the internal databases and applications. The successful candidate will serve as the point of contact in customer discussions during the flight and evaluation activities while maintaining system functionality. Candidate must be able to obtain and maintain Special Access Program clearance required for program...
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