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7 network and computer systems administrator jobs found

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United States network and computer systems administrator Pennsylvania
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Lockheed Martin
Jul 17, 2026
Systems Engineer - IT (Level 2)
Lockheed Martin King of Prussia, PA
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space. At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every day we use our unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you. The Space Security Division within Lockheed Martin Space’s Mission Solutions business area is seeking a talented and dedicated Systems Engineer-IT to become a member of an Agile team focused on IT Infrastructure (Systems Administration, Networking, & Hardware) in the Whiskey Program Area. Are you a Systems Admin looking for something...
Lockheed Martin
Jul 16, 2026
Systems Engineer - IT (TS/SCI)
Lockheed Martin King of Prussia, PA
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space. At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every day we use our unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you. The Space Security Division within Lockheed Martin Space’s Mission Solutions business area is seeking a talented and dedicated Systems Engineer-IT to become a member of an Agile team focused on IT Infrastructure (Systems Administration, Networking, & Hardware) in the Whiskey Program Area. Are you a Systems Admin looking for something...
Lockheed Martin
Jul 16, 2026
Systems Engineer - IT Sr (TS/SCI)
Lockheed Martin King of Prussia, PA
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space. At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every day we use our unique skills and experiences to create, design and build solutions to some of the worlds’ hardest engineering problems. Our culture encourages employees to dream big, perform with excellence and create incredible products. We provide the resources, inspiration and focus and if you have the passion and courage to dream big, we want to build a better tomorrow with you. The Space Security Division within Lockheed Martin Space’s Mission Solutions business area is seeking a talented and dedicated Systems Engineer-IT to become a member of an Agile team focused on IT Infrastructure (Systems Administration, Networking, & Hardware) in the Whiskey Program Area. Are you a Systems Admin looking for something...
Lockheed Martin
Jul 10, 2026
Cyber Software Engineer Senior
Lockheed Martin King of Prussia, PA
Description: What We're Doing At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical expertise to design solutions that safeguard our nation and allies. Every day, we push boundaries to ensure mission success—and we invite you to be part of this critical work. Key Responsibilities • Design and implement secure system architectures for enterprise and mission-critical environments. • Apply cybersecurity engineering principles across the full system lifecycle, including requirements, design, implementation, verification, deployment, and sustainment. • Support Risk Management Framework (RMF) activities including control implementation, assessment, evidence collection, and ATO accreditation and sustainment. • Perform security hardening of operating systems, applications, databases, and network devices in...
Lockheed Martin
Jun 09, 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...
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...
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