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74 system administrator jobs found

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Security Clearance United States system administrator
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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 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...
General Dynamics Mission Systems, Inc
Feb 24, 2026
Space Force - ServiceNow Platform Administrator
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: Department of Defense Secret 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   The ServiceNow Platform Administrator serves as the technical lead responsible for the health, performance, and operational integrity the ServiceNow instance. This role requires deep expertise in ServiceNow architecture, system administration, and security protocols...
General Dynamics Mission Systems, Inc
Feb 24, 2026
Space Force - Linux Administrator with AWS Skills
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: : [Department of Defense Secret security clearance is preferred 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   The Linux Administrator provides infrastructure support for ServiceNow MID servers, application nodes, RDS instances, and supporting systems within a self-hosted network enclave. This role combines Linux system administration with cloud infrastructure expertise to...
Lockheed Martin
Feb 06, 2026
Information System Security Manager (ISSM Level 5)
Lockheed Martin Fort Worth, TX, USA
Description: Do you want to be part of a culture that inspires employees to think big, perform with excellence and make the impossible become reality? Are you looking for a fast paced, dynamic work environment that is blazing through uncharted territory and accepting the multiple challenges our company and nation face? We provide the resources, inspiration and focus - if you have the passion and courage to dream big, work hard, and have fun doing what you love then we want to build a better tomorrow with you. Never have the opportunities for a technical career been so limitless. Lockheed Martin Aeronautics is searching for an experienced Enterprise Information Systems Security Manager (ISSM) to join an exciting opportunity within the Classified Cyber Security team. The selected candidate will provide Cyber Security technical leadership as the Enterprise ISSM and manage internal and external customers’ expectations on security architecture, and Assessment & Authorization...
Lockheed Martin
Feb 17, 2026
Systems Administrator Lead
Lockheed Martin Herndon, VA, USA
Description: The Contractor shall provide a Systems Administrator Lead to provide the Sponsor with a single POC to oversee and document administration, management, and provisioning of environments, accounts, permissions and roles, and profiles required for the development, O&M, and use of the Sponsor’s systems and applications. Basic Qualifications: - Bachelor's degree in Information technology, Computer Science, Cybersecurity, Computer Engineering, or Information Systems and three (3) years of combined experience in IT systems administration, IT systems/software development and integration, IT systems/software testing, cybersecurity compliance, IT systems troubleshooting, and incident response OR High School Diploma and five (5) years of combined experience in IT systems administration, IT systems/software development and integration, IT systems/software testing, cybersecurity compliance, IT systems troubleshooting, and incident response - Demonstrated two (2) years of...
Lockheed Martin
Mar 24, 2026
Dev Sec Ops Engineer
Lockheed Martin Herndon, VA, USA
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. The Strata program is seeking a Dev Sec Ops Engineer to become a member of their...
Odyssey Systems Consulting Group
Mar 14, 2026
Full time
SDA Branch Administrator
Odyssey Systems Consulting Group Colorado Springs, CO, USA
Position Summary Odyssey Systems has an exciting new opportunity providing Advisory and Assistance Services (A&AS) to support the US Space Force mission to defend National Security Interests in Space as a Space Domain Awareness (SDA) Branch Administrator for System Delta 85 (SYD 85). SYD 85 is the U.S. Space Force organization responsible for developing and delivering resilient space capabilities supporting Battle Management, Command, Control, Communication, and Space Intelligence (BMC3I). SYD 85 synchronizes acquisition efforts for critical space system capabilities and works together with Combat Forces Command (CFC) Mission Deltas to improve mission readiness.     SYD 85’s missions are foundational to Protecting and Defending US Space Systems that provide space-based Intelligence, Early Warning, Communications and Global Positioning services that sustain our way of life, support our national economy and act as force multipliers in times of...
Lockheed Martin
Feb 25, 2026
Security Systems Specialist & Technical Operations
Lockheed Martin King of Prussia, PA, USA
Description: Current Secret with ability to obtain TS/SCI access. The Security Systems Specialist & Technical Operations performs a variety of activities on security systems. The activities ensure compliance with applicable LM policies and US Government secure facility design requirements in CFR 117, ICD 705, and applicable UFC guides and system. Responsibilities include: - Performs a variety of activities on information systems utilized in the Security organization including data extraction and report generation. - Requires proficiency in physical security systems applications for video surveillance, security alarms, access control systems. - Provides definitive security system requirements for proprietary areas, and system level requirements for classified program areas in conjunction with the Physical Security and Accreditation Branch for their application. - Recommends and assists in the development and enforcement of LM Space enterprise standards for these...
Lockheed Martin
Feb 18, 2026
Database Admin / Advanced Reporting Tool / J-NEEO / Nellis AFB
Lockheed Martin Nellis Air Force Base, NV, 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 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...
General Dynamics Mission Systems, Inc
Feb 12, 2026
Senior Engineering Support Specialist
General Dynamics Mission Systems, Inc Groton, CT, USA
Basic Qualifications Requires a Bachelor’s or Technology degree in Engineering or a related specialized area/field, or equivalent (4 years job-related experience). Requires an additional 2+ years of job-related experience, or a Master's degree. CLEARANCE REQUIREMENTS: Department of Defense Secret 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 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...
General Dynamics Mission Systems, Inc
Feb 12, 2026
Senior Engineering Support Specialist
General Dynamics Mission Systems, Inc Chesapeake, VA, USA
Basic Qualifications Requires a Bachelor’s or Technology degree in Engineering or a related specialized area/field, or equivalent (4 years job-related experience). Requires an additional 2+ years of job-related experience, or a Master's degree. CLEARANCE REQUIREMENTS: Department of Defense Secret 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 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...
Lockheed Martin
Feb 04, 2026
Linux Administrator SME
Lockheed Martin Herndon, VA, USA
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin provides Red Hat Enterprise Linux (RHEL) based High Performance...
Lockheed Martin
Feb 04, 2026
SE Linux / MLS SysAdmin
Lockheed Martin Herndon, VA, USA
Description: Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. Join us in shaping a new era in space and find a career that's built for you. Lockheed Martin provides Red Hat Enterprise Linux (RHEL) based High Performance...
Lockheed Martin
Mar 31, 2026
Information Systems Security Officer ISSO - Cyber Security - Level 2
Lockheed Martin Palmdale, CA, USA
Description: Lockheed Martin Aeronautics. Be More Than You Can Imagine. 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 cyber security professionals seeking a place to make their mark –or for seasoned cyber security professionals seeking their next career challenge. Join us and see where your Lockheed Martin Aeronautics journey will take you. As an Information Systems Security Officer (ISSO) you will join the Classified Cyber Security Team supporting Department of Defense (DoD) programs to ensure classified information systems meet cyber security requirements and government directives. In this role, you will leverage your technical skills to: •Interpret the Joint Special Access Program Implementation Guide (JSIG) in determining technical Information Assurance (IA) requirements, conduct cyber risk assessment activities including...
Lockheed Martin
Mar 31, 2026
ARISE Analytics Sr. Software Engineer - Orlando, FL
Lockheed Martin Orlando, FL, USA
Description: The ARISE Analytics - Platform team is seeking an enthusiastic and talented Software Engineer to join our team. On this team you will play a critical role in designing, building, and maintaining the underlying platforms that enable our developers to build, deploy, and manage applications efficiently. You will work closely with cross-functional teams to ensure our platforms are scalable, secure, and meet the evolving needs of our business. The ARISE Analytics team works closely with A/AI Research engineers, so a working understanding of Machine Learning principles is desirable. Candidates applying to this position should have a Bachelor's degree, or greater, in Computer Engineering, Software Engineering or an equivalent field with significant software development experience. Lockheed Martin is a global security and aerospace company that employs approximately 114,000 people worldwide and is principally engaged in the research, design, development, manufacture,...
LMI
Mar 29, 2026
Health Policy Operations & Communications Intern - Summer 2026
LMI Tysons, VA, USA
Overview LMI is seeking a Health Policy Operations & Communications Intern to support program operations and stakeholder engagement efforts. The intern will join a team delivering policy, operational, and analytical support to HHS, specifically the Centers for Medicare & Medicaid Services (CMS). The intern will support a team delivering operational, analytical, and communications support to the Centers for Medicare & Medicaid Services (CMS). The primary focus will be assisting with application review processes, operational documentation, stakeholder coordination, and program communications to ensure alignment with federal requirements. This role will not involve direct policy authorship or influence over policy decisions.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and...
Lockheed Martin
Mar 28, 2026
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin Cape Canaveral, FL, USA
Description: This position will perform duties as a Classified Cybersecurity Information Systems Security Officer (ISSO) for the LM Space facility in Cape Canaveral, FL. Classified Cybersecurity Analysts help secure lifesaving products and critical state-of-the-art engineering and manufacturing systems by applying cutting edge cybersecurity principles. Rising to the challenge of building a more secure world for the warfighter, space exploration, climate sustainability and commercial use. The work that Cybersecurity Analysts do can be summarized in this way: - You will have a direct impact to national security, ultimately contributing to protecting your loved ones – this is dynamic, gratifying and impactful work! - You will have the opportunity to engage in all aspects of the cyber discipline. - You can enjoy a work-life balance that allows for flex hours and a family-first culture. Key Responsibilities of this role includes: - Oversee day-to-day information system security...
Lockheed Martin
Mar 26, 2026
Infrastructure Network Engineer
Lockheed Martin Mount Laurel Township, NJ, USA
Description: What We're Doing At Lockheed Martin Rotary and Mission Systems, we're driving innovation and upholding integrity in all that we do. Our mission is to push the boundaries of technology and pioneer groundbreaking solutions. By applying the highest standards of business ethics and visionary thinking, we believe that everything is within our reach. The Work In this Infrastructure Network Engineer role, you will: - Support network management and monitoring for Aegis programs, including troubleshooting and integration to ensure the network operates securely, efficiently, and reliably. - Contribute to network build development and delivery on a quarterly cadence. - Support network design and implementation, including installation and configuration of devices. - Apply automation tools and technologies to streamline system deployment. - Support customer and corporate events and exercises to test future capabilities for the Warfighter. Who You Are You have a Bachelors...
Lockheed Martin
Mar 26, 2026
Information System Security Officer, Classified Cybersecurity
Lockheed Martin Sunnyvale, CA, USA
Description: TS/SCI with ability to obtain a Counterintelligence Polygraph. This position will perform duties as a Classified Cybersecurity Information Systems Security Officer (ISSO) at the LM Space facility in Sunnyvale CA. Classified Cybersecurity professionals secure critical state-of-the-art engineering and manufacturing systems by applying cutting edge cybersecurity principles. Rising to the challenge of building a more secure world for the warfighter, space exploration, climate sustainability and commercial use. The work that Cybersecurity professionals do can be summarized in this way: - You will have a direct impact to national security, ultimately contributing to protecting your loved ones – this is dynamic, gratifying and impactful work! - You will have the opportunity to engage in all aspects of the cyber discipline - You can enjoy a work-life balance that allows for flex hours and a family-first culture. Key Responsibilities of this role includes: - Oversee...
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