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21 systems administrator jobs found

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Onsite systems administrator Pennsylvania
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Lockheed Martin
Apr 16, 2026
Systems Engineer-IT, Sr / Top Secret / Onsite: KoP, PA
Lockheed Martin King of Prussia, PA
Description: Primary job responsibilities include, but are not limited to: - Designing, estimating, ordering, tracking, installing, configuring, securing, hardening, remediating, testing, upgrading and decommissioning of data center equipment, network switches, virtual servers, physical servers, client workstations and network-attached storage equipment. - Application support to program engineers is an essential part of the day-to-day responsibilities that ensures a successful synergy between program deliverables and the underlying IT infrastructure. - The selected candidate will be responsible for the ongoing operations, maintenance and continuous improvement of multiple classified IT program environments. - This IT professional will ensure that the Space IT systems are managed, controlled and compliant with the Security Technical Implementation Guide (STIG) and the Risk Management Framework (RMF). Basic Qualifications: - Current DoD 8570.01-M IAT Level II or III...
Lockheed Martin
Apr 16, 2026
Systems Engineer-IT, Sr / Top Secret / Onsite: KoP, PA
Lockheed Martin King of Prussia, PA
Description: The selected candidate will be responsible for the ongoing operations, maintenance and continuous improvement of multiple classified IT program environments. This IT professional will ensure that the Space IT systems are managed, controlled and compliant with the Security Technical Implementation Guide (STIG) and the Risk Management Framework (RMF). Primary job responsibilities include, but are not limited to: - Designing, estimating, ordering, tracking, installing, configuring, securing, hardening, remediating, testing, upgrading and decommissioning of data center equipment, network switches, virtual servers, physical servers, client workstations and network-attached storage equipment. - Application support to program engineers is an essential part of the day-to-day responsibilities that ensures a successful synergy between program deliverables and the underlying IT infrastructure. If you are looking for a hands-on role with the flexibility to learn and...
Lockheed Martin
Apr 01, 2026
System Admin - Advanced Electronic Systems (EXPAT- Marshall Islands)
Lockheed Martin King of Prussia, PA
Description: WHO YOU ARE Lockheed Martin Rotary and Mission Systems Business Area is seeking an experienced System Administrator to support the Space fence radar operations site located at Sensor Site (SS) 1 on Kwajalein Atoll, Marshall Islands. This is an Expat role to the Marshall Islands. Tasking includes performing mission operations, computer maintenance and reconfiguration on Digital Processing Group and Mission Subsystem, managing communications equipment, network administration, information assurance, data recording/data management. Additional responsibilities may include cross-training with radar technicians to perform maintenance on array equipment, supplementing critical radar corrective maintenance actions/requirements. Successful candidate shall provide a continuous level of engineering services support at the Space Fence radar sensor site located on Kwajalein Atoll in the Marshall Islands, maintaining effective customer communications and relations. May provide...
Lockheed Martin
May 15, 2026
Full Stack Infrastructure Engineer (TS/SCI Required)
Lockheed Martin King of Prussia, PA
Description: What We’re Doing: Lockheed Martin’s Electronic, Cyber & Information Warfare (ECIW) market segment within the RMS C6ISR line of business is focused on ensuring our customers can dominate the full Electromagnetic Spectrum (EMS), bringing capabilities to bear in the realms of intelligence, surveillance and reconnaissance (ISR), cyber techniques and effects, electronic warfare (EW), information operations (IO), and 5G.MIL; while delivering full-spectrum cyber capabilities and cyber resilient systems to our defense, intelligence community and global security customers. We are dedicated to helping governments and militaries around the world protect their platforms, systems, networks and data by: protecting networks, cyber hardening weapons, providing mission and training systems; outfitting cyber warriors with technologies for offensive and defensive missions; developing advanced technologies that enable cyber operations; and helping the intelligence community...
Lockheed Martin
May 12, 2026
Cybersecurity Engineer
Lockheed Martin King of Prussia, PA
Description: Be part of a dynamic security engineering team working to capture, define, architect, develop, integrate, and sell-off products to government customers. In this role, you will support tasks such as the following under the direction of the cyber engineering lead: •Apply an interdisciplinary, collaborative approach to assist with planning, design, development, validation and verification of Cyber solutions across the lifecycle •Serve as cyber representative to non-cyber teams supporting requirements understanding, collaborative engagement, and solution identification and implementation •Assist with development of Cyber Plans and Procedures Basic Qualifications: • Understanding of Linux and Windows operating systems • Technical curiosity to learn new skills and are ready to help across the team •Team Player • Experience with vulnerability scanning and/or of patching • Understanding of Risk Management Framework, (RMF) NIST SP 800-53 • Experience with generating Bodies...
Lockheed Martin
May 12, 2026
Cyber Security Engineer
Lockheed Martin King of Prussia, PA
Description: Responsible for applying an interdisciplinary, collaborative approach to plan, design, develop, validate and verify Cyber solutions across the lifecycle. Conduct cyber risk assessment activities including threat modeling, vulnerability analysis and analysis of mitigation solutions. Coordinates and addresses Supply Chain risk management concerns. Develop, evaluate and analyze design constrains, trade-offs and detailed system and security design as they pertain to the Cyber domain. Coordinate with Cyber and system architects and developers to provide oversight in the development of solutions. Conduct cybersecurity test and evaluation of hardware and/or software designs to verify and validate compliance with defined specifications and requirements. Employs cyber security processes, methods, techniques and tools and assure their consistent application. Implements appropriate Assessment and Authorization activities as required by customers. Basic Qualifications: Active...
Lockheed Martin
May 02, 2026
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin King of Prussia, PA
Description: This position requires current Top Secret clearance. Classified Cyber Security ISSOs 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 selected candidate will be part of the Space - Security & Emergency Services organization, and function as an Information System Security Officer (ISSO) in Valley Forge, PA, supporting a variety of classified programs as part of a team. The work that ISSOs 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...
Lockheed Martin
May 02, 2026
Information Systems Security Officer, Classified Cybersecurity
Lockheed Martin King of Prussia, PA
Description: Top Secret security clearance with ability to obtain SCI Eligibility and Polygraph. This position will perform duties as a Classified Cybersecurity Information Systems Security Officer (ISSO) for systems located at the LM Space facility in Valley Forge PA. The work that Cybersecurity ISSO’s 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 operations including hardware and software implementations. - Carry out technical administration of IS in accordance with internal LM and customer security requirements, primarily Risk Management Framework (RMF). - Upkeep,...
Lockheed Martin
Apr 24, 2026
Program Agile Lead
Lockheed Martin King of Prussia, PA
Description: At Lockheed Martin, we apply our passion for purposeful innovation to keep people safe and solve the world's most complex challenges. Within Space, we are seeking a talented Release Train Engineer (RTE) to join our Agile Talent Center team as an RTE deployed to the VUE program with a desire to facilitate Agile Release Train (ART) events and processes and assist teams in delivering business and customer value. RTEs communicate with stakeholders, escalate impediments, help manage roadblocks, and facilitate improvement in our Space Business Area. The RTE will support the Solution Train Engineer and be the direct program liaison for all activities described below. As an RTE for the Agile Talent Center team, you will be expected to: - Work together with Product and Technical stakeholders of the ART to manage and optimize the flow of value through the ART - Serve as the primary facilitator of ART level events and processes including Value Stream Mapping, Roadmap...
Lockheed Martin
Apr 21, 2026
Cybersecurity Engineer (Level 2-4)
Lockheed Martin King of Prussia, PA
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 Space will be hosting an invitation only in-person Hiring Event in King...
Lockheed Martin
Apr 15, 2026
Dev Sec Ops Engineer
Lockheed Martin King of Prussia, PA
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. As a Dev Sec Ops Engineer you will: • Collaborate with Infrastructure Technical...
Lockheed Martin
Apr 15, 2026
DevSecOps Engineer, Senior - (Active TS/SCI)
Lockheed Martin King of Prussia, PA
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. Are you a Senior DevSecOps Engineer for something different? In this role you will: +...
Lockheed Martin
Apr 15, 2026
Dev Sec Ops Engineer
Lockheed Martin King of Prussia, PA
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. As a Dev Sec Ops Engineer you will: • Collaborate with Infrastructure Technical...
Lockheed Martin
Apr 14, 2026
Information System Security Manager (ISSM)
Lockheed Martin King of Prussia, PA
Description: Who we are: Lockheed Martin is a pioneer in cyber security—partnering, innovating, and building cutting edge solutions. Our talented employees tackle the world’s toughest engineering challenges every day, leveraging their unique skills and experiences to design and deliver breakthrough technology. We empower our people to think big, perform with excellence, and create extraordinary products. If you have the passion and courage to dream boldly, join our culture and help build a better tomorrow. We provide the resources, inspiration, and focus you need to succeed. What We’re Doing: At Lockheed Martin Rotary and Mission Systems, we are driven by innovation and integrity. We believe that by applying the highest standards of business ethics and visionary thinking, everything is within our reach and yours as a Lockheed Martin employee. Lockheed Martin values your skills, training, and education. As a cyber security professional at Lockheed Martin, you'll be part of...
LMI
Apr 08, 2026
Information Systems Security Manager (ISSM)
LMI Mechanicsburg, PA
Overview We’re looking for an Information Systems Security Manager (ISSM) responsible for overseeing and managing the risks associated with information systems security for the NADACS Program. This role involves ensuring compliance with relevant cybersecurity standards, frameworks, and regulations while proactively identifying opportunities to enhance the program’s security posture. The ISSM collaborates closely with stakeholders to develop, implement, and maintain security policies, procedures, and controls that safeguard the integrity, confidentiality, and availability of NADACS systems. Ability to travel to client site in Mechanicsburg, PA required at times. Candidates local to Mechanicsburg, PA highly preferred.    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 mission-ready AI to...
LMI
Apr 06, 2026
Information Systems Security Engineer (ISSE) - Navy
LMI Mechanicsburg, PA
Overview Location: Mechanicsburg, PA preferred. Tysons, VA, allowed. Partial teleworking allowed.   Overview:   The  Cyber & Sensor Integration Specialist  will promote an integrated, team-oriented culture while delivering strong individual contribution while advocating through action, robust teaming,  coordination  and collaboration .   In this dynamic role, you will  leverage  your technical and cybersecurity subject matter  expertise  to provide strategic guidance and support to LMI clients throughout sales and engagement processes. This  Senior Consultant  level role will be expected to contribute critical thinking, spanning client support, securing planned architecture, troubleshooting, and working with customers to developing use cases and applications of LMI sensor technology. Your  contribution to  proposed cybersecurity responses will help drive implementation roadmaps and ensure alignment with customer security...
Lockheed Martin
Mar 11, 2026
Simulator Tech I - Harrisburg
Lockheed Martin Harrisburg, PA
Description: WHO WE ARE Rotary and Mission Systems' Training, Logistics and Simulation (TLS) business is Lockheed Martin’s center of excellence for training and logistics products and services, serving the U.S. military and more than 65 international customers around the world. TLS develops programs that teach service men and women skills to accomplish their most challenging missions — flying the world’s most advanced fighter aircraft, navigating ships, and driving armored vehicles. WHAT WE’RE DOING Our Flight Simulator Technicians work alongside a multidisciplinary team of engineers, cybersecurity and IT specialists, and training instructors to meet operational and reliability objectives across the extensive suite of flight‑simulator systems used under the AFSOC ACTS II program. *This position is contingent upon program award, expected in June 2026, with a tentative start date for August 2026.* THE WORK Primary Responsibilities • Diagnose & Repair – Troubleshoot...
Lockheed Martin
Mar 11, 2026
Simulator Tech II - Harrisburg
Lockheed Martin Harrisburg, PA
Description: WHO WE ARE Rotary and Mission Systems' Training, Logistics and Simulation (TLS) business is Lockheed Martin’s center of excellence for training and logistics products and services, serving the U.S. military and more than 65 international customers around the world. TLS develops programs that teach service men and women skills to accomplish their most challenging missions — flying the world’s most advanced fighter aircraft, navigating ships, and driving armored vehicles. WHAT WE’RE DOING Our Flight Simulator Technicians work alongside a multidisciplinary team of engineers, cybersecurity and IT specialists, and training instructors to meet operational and reliability objectives across the extensive suite of flight‑simulator systems used under the AFSOC ACTS II program. *This position is contingent upon program award, expected in June 2026, with a tentative start date for August 2026.* THE WORK Primary Responsibilities • Diagnose & Repair – Troubleshoot...
Lockheed Martin
Mar 11, 2026
Simulator Maintenance Tech III - Harrisburg
Lockheed Martin Harrisburg, PA
Description: WHO WE ARE Rotary and Mission Systems' Training, Logistics and Simulation (TLS) business is Lockheed Martin’s center of excellence for training and logistics products and services, serving the U.S. military and more than 65 international customers around the world. TLS develops programs that teach service men and women skills to accomplish their most challenging missions — flying the world’s most advanced fighter aircraft, navigating ships, and driving armored vehicles. WHAT WE’RE DOING Our Flight Simulator Technicians work alongside a multidisciplinary team of engineers, cybersecurity and IT specialists, and training instructors to meet operational and reliability objectives across the extensive suite of flight‑simulator systems used under the AFSOC ACTS II program. *This position is contingent upon program award, expected in June 2026, with a tentative start date for August 2026.* THE WORK Primary Responsibilities • Diagnose & Repair – Troubleshoot...
Lockheed Martin
Feb 18, 2026
Systems Engineer - IT - Top Secret Clearance Required
Lockheed Martin King of Prussia, PA
Description: WHAT WE'RE DOING As part of Lockheed Martin Rotary & Mission Systems business area, our team supports multiple software applications across the MIC2 line of business. This position is in the C4ISR market segment supporting United States Air Force and Navy programs specializing in software and systems engineering under the Weapons Platform Integration organization. THE WORK As a IT- Systems Engineer across the MIC2 line of business , you will: • Work in an Kanban environment providing support for implementation, troubleshooting and maintenance of various Information Technology (IT) systems, including networking equipment - Manage IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices • Patch, harden and design Windows and Linux (Red Hat) and networking systems with Security personnel to protect against ever changing Cyber Threats Please Note: • This position requires a government...
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