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383 system administrator jobs found

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United States Onsite system administrator
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Full time  (27)
Lockheed Martin
Mar 26, 2026
Sr Linux System Administrator - Clearance Required
Lockheed Martin MD, USA
Description: This position is participating in our External Referral Program . If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you'll receive a payment! code-extrefer Senior Linux System Administrator - Clearance Required WHAT WE'RE DOING • Join Lockheed Martin Rotary and Mission Systems, where we foster innovation and integrity. • As a Senior Linux System Administrator, you'll be empowered to create "new realities" and pioneer solutions that break boundaries. • Benefit from the support of a global technology leader that values innovative thinking and provides the resources to turn ideas into reality. • Build on our proud legacy of achievement and contribute to shaping the future of aerospace, defense, and security solutions. THE WORK TKO provides systems engineering, software development, data science and cloud development and engineering services to the Cyber Infrastructure Solutions customer. The services enable the...
General Dynamics Mission Systems, Inc
Mar 20, 2026
IT System Administrator
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Bachelor’s degree in a related specialized area or equivalent is required plus a minimum of 5 years of relevant experience; or Master's degree plus a minimum of 3 years of relevant experience. CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance with Polygraph 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 At General Dynamics Mission Systems, we create the technologies, products and services that help our nation’s heroes keep our nation safe. The work we do is so advanced, we are continuously moving the boundaries of what’s possible. Here you’ll work with the best and your talent will be front and center on projects that...
Lockheed Martin
Mar 19, 2026
System Administrator
Lockheed Martin Hurlburt Field, 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 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...
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...
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...
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,...
Lockheed Martin
Mar 20, 2026
Classified IT System Administrator / Onsite: PA, AL, CA, FL or CO
Lockheed Martin Huntsville, AL, USA
Description: This Enterprise Operations position supports the DarkStar Enterprise network, delivering secure, mission-critical IT capabilities to collateral Secret programs across the enterprise. As a Systems Administrator, you will play a direct role in enabling national security objectives by ensuring the reliability, performance, and security of classified infrastructure used by critical programs. This is a hands-on position focused on resolving technical challenges across applications, systems, and network connectivity within a classified environment. You will be part of a high-performing team responsible for maintaining and defending enterprise IT systems that operate in complex, security-constrained environments. The selected candidate will administer and support Linux and/or Windows systems, network components, and storage platforms. Responsibilities include system installation, configuration, maintenance, and troubleshooting to ensure continuous availability of mission...
Lockheed Martin
Mar 12, 2026
F-22 IMIS System Administrator (Level 2), Secret Clearance
Lockheed Martin Anchorage, AK, USA
Description: We are seeking an experienced Unix or Windows Administrator to join our F-22 Field Operations Team at Elmendorf Air Force Base, Alaska. As a critical member of our team, you will be responsible for providing technical support, system administration, and data management for our Integrated Maintenance Information Systems (IMIS). You will work closely with our customer to ensure the smooth operation of our systems and provide exceptional support to our users. What You Will Be Doing • Administer and maintain Solaris Unix, RedHat Enterprise Linux (RHEL), and Windows operating systems. • Work various shift hours and on-call to include weekends to support customer mission requirements • Provide primary customer point of contact for technical items • Aid/augmentation to local IMIS leadership • Perform backups, restores, and disaster recovery of systems/databases/network equipment • Maintain system/software/firewall/account maintenance and monitoring • Troubleshoot and...
Lockheed Martin
Mar 12, 2026
F-22 IMIS System Administrator (Entry Level), Secret Clearance
Lockheed Martin Anchorage, AK, USA
Description: We are seeking a motivated and talented IMIS Administrator to join our F-22 Field Operations Team at Elmendorf Air Force Base, Alaska. As a critical member of our team, you will be responsible for providing technical support, system administration, and data management for our Integrated Maintenance Information Systems (IMIS). You will work closely with our customer to ensure the smooth operation of our systems and provide exceptional support to our users. What You Will Be Doing • Administer and maintain Solaris Unix, RedHat Enterprise Linux (RHEL), and Windows operating systems. • Work various shift hours and on-call to include weekends to support customer mission requirements • Provide primary customer point of contact for technical items • Aid/augmentation to local IMIS leadership • Perform backups, restores, and disaster recovery of systems/databases/network equipment • Maintain system/software/firewall/account maintenance and monitoring • Troubleshoot and...
Lockheed Martin
Mar 12, 2026
F-35 ALIS Mission Planning System Administrator
Lockheed Martin Greenville, SC, USA
Description: Lockheed Martin Aeronautics. Be More Than You Can Imagine Joining the Lockheed Martin ALIS/OMS team immediately opens a world of educational and experiential development opportunities for you. Tuition Assistance is available for undergraduate and graduate degree programs as wells as professional and technical certifications to help you gain the specialized skills for personal and professional growth. In this role you will support day to day operations at an active F-35 squadron. For the adventurous, temporary travel opportunities allow you to provide support at other locations and aboard ships deploying with the system. This role is for a Mission Planning Administrator for the Joint Strike Fighter (JSF) Autonomic Logistics Information System (ALIS) at Iwakuni, Japan, in support of the US United States Marine Corps. A Day in the Life As an Mission Planning Administrator with our F-35 ALIS team partnering with our customer, you will wear many hats; mission planning...
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...
Lockheed Martin
Mar 12, 2026
Systems Administrator Sr / ALIS / F-35 / Jyvaskyla, Finland
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. Position Assignment: F-35 Systems Administrator located in Jyvaskyla, Finland, in support of training operations benefiting the Finnish Air Force. The System Administrator will support the sustainment, maintenance, and operation of F-35 training system devices, with a long-term deployment to Jyvaskyla, Finland. The selected candidate will be responsible for developing, configuring, and supporting computer applications, as well as setting up and monitoring training computer networks. They will perform a variety of maintenance, evaluation, and training tasks to ensure the training computer network...
Lockheed Martin
Mar 26, 2026
Mult Function Info Systems (MPE Admin) Luke Air Force Base, AZ
Lockheed Martin AZ, 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...
General Dynamics Mission Systems, Inc
Mar 26, 2026
Integration Engineer – Submarine Combat Systems
General Dynamics Mission Systems, Inc Manassas, VA, USA
Basic Qualifications Requires a Bachelor’s degree in Computer Science/Computer Engineering/ Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience.  Must have Kubernetes or Linux.   CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is obtainable within a reasonable amount of time after 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 Integration Engineer – Submarine Combat Systems Seeking an Integration Engineer to support the Common Infrastructure Services (CIS) of the Submarine Warfare Federated Tactical Systems...
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