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170 security clearance jobs found in King of Prussia, PA

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Lockheed Martin
Mar 25, 2026
Materials Engineer
Lockheed Martin King of Prussia, PA, USA
Description: "Ahead of Ready" 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 Materials and Processes Engineer you’ll work on a broad range...
Lockheed Martin
Mar 25, 2026
Software Quality Engineer Staff
Lockheed Martin King of Prussia, PA, USA
Description: The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. What is the mission? 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,...
Lockheed Martin
Mar 25, 2026
Software Engineer
Lockheed Martin King of Prussia, PA, 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, a leader in advancing secure communications and cutting-edge defense...
Lockheed Martin
Mar 25, 2026
Software Engineer Sr
Lockheed Martin King of Prussia, PA, 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, a leader in advancing secure communications and cutting-edge defense...
Lockheed Martin
Mar 25, 2026
Software Engineer Sr
Lockheed Martin King of Prussia, PA, 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, a leader in advancing secure communications and cutting-edge defense...
Lockheed Martin
Mar 25, 2026
Mechanical Ground Support Equipment (MGSE) Manager
Lockheed Martin King of Prussia, PA, USA
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 men and women are on a mission to make a difference in the world and every single 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. Someday the people of the world may hear the full story of your achievements. When the history books are written, they may discover the critical role you’ve played to defeat the enemies of freedom. They may learn the reasons for the sacrifices you’ve made to achieve our mission. As we enjoy the freedoms of democracy, we...
Lockheed Martin
Mar 25, 2026
Senior Subcontracts Program Manager
Lockheed Martin King of Prussia, PA, USA
Description: The mission matters. So do the people behind it. With advancing defense technology at our core, what sets us apart is a culture of collaboration, purpose, and impact. 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...
Lockheed Martin
Mar 25, 2026
Software Engineer Sr Staff
Lockheed Martin King of Prussia, PA, 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. Our team leverages industry standard open-source software solutions such as GitLab,...
Lockheed Martin
Mar 25, 2026
Information System Security Manager (ISSM) KOP
Lockheed Martin King of Prussia, PA, USA
Description: Lockheed Martin’s Rotary and Mission Systems (RMS) Classified Cyber Security organization is looking for a Classified Cyber Security Manager who will serve as the on site cyber leader for our classified programs. In this role you will own the day to day security posture of the site’s classified systems and infrastructure, serve as the facility Information Systems Security Manager (ISSM), and provide authoritative guidance on all matters of confidentiality, integrity, and availability. You will lead a team of cyber professionals, partner with engineering and program leads, and ensure that security governance, risk management, and compliance are embedded into every operational and development activity across the site. Minimum Final Secret Clearance Required Minimum 8 + years of progressive experience in cybersecurity, with at least 3 + years in an ISSM or site leadership role for classified systems. Key Responsibilities: • Own the execution of business enablement...
Lockheed Martin
Mar 24, 2026
CNC Machinist (SECOND SHIFT)
Lockheed Martin King of Prussia, PA, USA
Description: Role Overview Lockheed Martin Space is seeking an Experimental CNC Machinist to support precision manufacturing in a production and development environment. In this role, you will machine and inspect complex parts to exacting specifications, supporting spacecraft and space-related programs that demand accuracy, consistency, and collaboration. You will work with CNC machining centers, engineering documentation, and manufacturing teams to produce high-quality components while contributing feedback that helps improve processes and efficiency. This position is based onsite in King of Prussia, Pennsylvania. Key Duties / Responsibilities ● Machine, fabricate, and assemble parts according to engineering prints and operation sheets using CNC equipment ● Set up and operate horizontal and vertical CNC machining centers ● Perform machining operations such as drilling, milling, boring, and tapping ● Interpret Computer-Aided Design (CAD) data, prints, and sketches ● Verify...
Lockheed Martin
Mar 24, 2026
Classified IT Product Orchestration Dev and Deployment Manager / TS
Lockheed Martin King of Prussia, PA, USA
Description: The manager of the classified IT product orchestration and deployment team drives development feature priorities with our IT orchestration platform and is responsible for the deployment of complex and highly integrated software across multiple air gapped and classified networks for Lockheed Martin Space. Reporting to senior leadership, this role leads a multidisciplinary team and provides technical strategy and vision, priority management, and mentorship / career development to achieve the goals of 1LMX transformation adoption. This role manages two distinct teams and scope. The development team plans features and executes an agile framework to release versions on a quarterly basis. The rapid deployment team jumps between IT environments to deploy software, integrate with infrastructure and existing tools, and problem solves issues getting a product to an initial operating capability (IOC). Key Responsibilities: • People Leadership & Operational Maturity –...
Lockheed Martin
Mar 24, 2026
Software Engineer Sr - Level 3 - Top Secret Clearance Required
Lockheed Martin King of Prussia, PA, 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. Within the Victor Portfolio of Space Security, we are seeking a highly skilled,...
Lockheed Martin
Mar 24, 2026
Survivability Engineer (Level II)
Lockheed Martin King of Prussia, PA, USA
Description: "Ahead of Ready" 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. As a Survivability Engineer, you will support the System Engineering (SE) Special Disciplines Organization in one or more of the following...
Lockheed Martin
Mar 24, 2026
Network Engineer
Lockheed Martin King of Prussia, PA, 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. As a Network Engineer you will: • Collaborate with Infrastructure Technical Leadership...
Lockheed Martin
Mar 24, 2026
Systems Engineer - Early Career
Lockheed Martin King of Prussia, PA, USA
Description: By bringing together people that use their passion for purposeful innovation, at Lockheed Martin we keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel development and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. At Lockheed Martin, we place an emphasis on empowering our employees by fostering innovation, integrity, and exemplifying the epitome of corporate responsibility. Your Mission is Ours. Lockheed Martin Space is seeking an early career Systems Engineer. In this role you will support the definition, integration, and verification of complex aerospace systems on a collaborative, Agile development team. The successful candidate...
Lockheed Martin
Mar 24, 2026
DevSecOps Engineer, Staff
Lockheed Martin King of Prussia, PA, 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. LM SPACE: WHAT WE'RE DOING 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. THE WORK Lockheed Martin is seeking a talented DevSecOps Engineer with a Final Top Secret security clearance to work from either our King of Prussia, PA or Littleton, CO location(s). This is an MID-SR CAREER (level 4) ROLE where candidates typically require 5+ years of professional...
Lockheed Martin
Mar 21, 2026
Software Engineer, Level 2 - Top Secret Clearance Required to Start
Lockheed Martin King of Prussia, PA, 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. Within the Victor Portfolio of Space Security, we are seeking a highly skilled and...
Lockheed Martin
Mar 21, 2026
DevSecOps Engineer Senior - Top Secret Clearance Required to Start
Lockheed Martin King of Prussia, PA, 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 re-imagining 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 ready to invent the future? Lockheed Space is leveraging emerging,...
Lockheed Martin
Mar 21, 2026
Manufacturing Engineer II
Lockheed Martin King of Prussia, PA, USA
Description: Role Overview As a Manufacturing Engineer at Lockheed Martin Space in Valley Forge, Pennsylvania, you will develop, optimize, and implement the heatshield bonding process for a specific product line. You will support the Production Integrated Product Team (IPT) as the product moves from development into high-rate production, ensuring stable, efficient, and repeatable manufacturing. Key Duties / Responsibilities • Develop, refine, and implement manufacturing processes and procedures for assemblies and material handling • Analyze factory process data to identify inefficiencies and apply corrective actions • Integrate process improvements to optimize quality, efficiency, and production rates • Leverage automation, robotics, and computer-aided manufacturing tools to enhance production • Support adoption of new technologies and digital tools, including 3D modeling and digital work instructions • Collaborate with product design teams to align manufacturing methods...
Lockheed Martin
Mar 21, 2026
Manufacturing Engineer III
Lockheed Martin King of Prussia, PA, USA
Description: Role Overview As a Manufacturing Engineer, you will support production operations by developing and improving manufacturing processes for a specific product line. You’ll work closely with cross-functional teams to help transition products from development into stable, high-rate production. Your work will focus on improving efficiency, solving production challenges, and ensuring consistent, high-quality output. Key Duties / Responsibilities • Develop manufacturing processes, procedures, and production layouts for machining operations • Review engineering designs and provide input to improve manufacturability • Create production plans and optimize workflow to meet delivery goals • Investigate production issues, identify root causes, and implement corrective actions • Analyze factory and process data to improve efficiency and stability • Collaborate with shop floor personnel to implement process improvements • Design tooling and evaluate equipment performance •...
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