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58 security clearance jobs found in Sunnyvale, CA

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Lockheed Martin
Jan 16, 2026
Guidance Navigation and Control Engineer
Lockheed Martin Sunnyvale, CA, 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 GNC Engineer, you will join the GN&C team on the Next Generation Interceptor (NGI)...
Lockheed Martin
Jan 15, 2026
Construction Security Representative
Lockheed Martin Sunnyvale, CA, USA
Description: This position requires a current Secret clearance with ability to obtain Top Secret clearance. LM Space is looking for an experienced Physical Security professional with a strong background and knowledge of construction projects supporting classified programs. Candidate will support both the Intelligence and DoD community customer base by developing ICD-705 compliant Fixed Facility Checklists (FFC), Construction Security Plans (CSP), and DCSA Forms 147. Candidate will support SCIF and Open Storage Area construction and accreditation. The scope of this role will include developing plans for Protected Distribution Systems and perform technical inspections thereof, working closely with internal and external stakeholders to develop and respond to Requests for Information, performing routine secure area construction project inspections to provide excellent quality assurance and compliance, and conducting STC testing to ensure rated perimeters meet customer...
Lockheed Martin
Jan 15, 2026
Electro-Mechanical Engineer Intern, Harness Design
Lockheed Martin Sunnyvale, CA, 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 a Electromechanical Engineer Intern. In this role, you will learn how to draft and release Zuken E3 schematics for missile wiring programs, create and release 3D wiring models, and support wiring fabrication...
Lockheed Martin
Jan 15, 2026
Electromechanical Engineering Associate Manager, Cables and Harness
Lockheed Martin Sunnyvale, CA, USA
Description: Join Our Team as an Electromechanical Engineering Associate Manager where you join the team that creates Wire Harness and Cable Design for space applications! The team supports multiple lines of business at Lockheed Martin which means you could be designing packaging systems for the next mission to Mars or the next generation of GPS satellites. Location: This position does not support teleworking ; you will be located near our Lockheed Martin Space facility in: Sunnyvale CA and be expected to work a flexible 9x80 schedule in the office full-time. What does this role look like? You will provide leadership, functional management and technical direction to a team of engineers responsible for electromechanical engineering research, design, development, and production support for the Harness Core Team. Key activities you will accomplish in this role: As a Manager of Cable and Harness Design, you will be responsible to provide the functional directorate,...
Lockheed Martin
Jan 14, 2026
Structural Test Engineer, Sr.
Lockheed Martin Sunnyvale, CA, 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. We are seeking a Structural Test Engineer to join the Structural Test Lab on the LM Space...
Lockheed Martin
Jan 14, 2026
Instrumentation and Test Engineer
Lockheed Martin Sunnyvale, CA, USA
Description: Seeking an Instrumentation and Data Acquisition Test Engineer to lead the setup and operation of instrumentation and data acquisition systems during the execution of component, subsystem, and system level environmental, Modal, deployment, and integration testing. Work closely with technical experts and test support staff to meet the needs of the programs. Advise customers and labs of measurement capabilities and limitations, and make recommendations to ensure success. Prepare work instructions for instrumentation installation and checkout. Lead technician and team efforts to execute instrumentation tasks. Configure, operate and troubleshoot data acquisition systems, instrumentation, and automated test equipment. Develop and review test procedures. Setup and execute Modal testing and perform post test data review. Support test discrepancy resolution and other troubleshooting activities. Prepare and disseminate test results, reports, and analysis. Basic Qualifications:...
Lockheed Martin
Jan 14, 2026
Mechanical Repair - Senior
Lockheed Martin Sunnyvale, CA, USA
Description: IAM Hourly represented employees who currently work at the main (Sunnyvale/Palo Alto) unit, Santa Cruz, VAFB or Eastern Range facilities must apply to open requisitions on Brass Ring to be considered for the position. This occupation requires the complete knowledge to repair, service, align and diagnose malfunctions in all types of conventional and automated machine tools, precision fabrication machines, or environmental test chambers, vibration control equipment, acoustic chambers and other plant machinery and equipment. Plan and determine methods to perform scheduled preventative maintenance, overhaul, repair, alignment of conventional and automated machine tools complete with their associated control systems, precision fabrication machines, or environmental test chambers, vibration control equipment, acoustic chambers and other plant machinery and equipment. - Ability to work independently in hydraulic and...
Lockheed Martin
Jan 14, 2026
Systems Engineer (Modeling and Simulation) - Early Career
Lockheed Martin Sunnyvale, CA, 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. The Mission Analysis and Simulations team within the SDA Tranche 3 Tracking program is seeking a systems engineer - early career, to support evaluation of mission performance and compliance to system-level requirements. This role will work...
Lockheed Martin
Jan 10, 2026
Software Engineer
Lockheed Martin Sunnyvale, CA, USA
Description: Do you have a commitment to success, proven interpersonal skills, a positive outlook? Are you a creative thinker and problem solver? Are you looking for a meaningful career? If so, then we would love to speak with you! The Engineering & Technology organization is a highly dynamic and growing organization that plays a vital role in providing mission-critical intelligence solutions on variety of world-class satellite, deep space exploration, missile, and classified special programs. The candidate will become a member of a creative, high-tempo, collaborative, cross-functional, dynamic and multi-disciplinary THAAD interceptor flight software (FSW) team. This team performs the analysis, design, development, and test of the embedded flight software and the real-time, Hardware-In-The-Loop (HWIL) missile testbed. Opportunities are available to participate in all elements/steps of the software development cycles. Basic Qualifications: - Requires an Engineering BS degree...
Lockheed Martin
Jan 10, 2026
Mechanical Engineer - Thermal Analysis (Level II)
Lockheed Martin Sunnyvale, CA, 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. For over 60 years, the Fleet Ballistic Missile (FBM) team has supported the Navy’s mission...
Lockheed Martin
Jan 10, 2026
Mechanical Engineer - Thermal Analysis (Level II)
Lockheed Martin Sunnyvale, CA, 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. For over 60 years, the Fleet Ballistic Missile (FBM) team has supported the Navy’s mission...
Lockheed Martin
Jan 10, 2026
Guidance, Navigation & Control Engineer (Level II)
Lockheed Martin Sunnyvale, CA, USA
Description: About Lockheed Martin Space : 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. About the Role : This position will support established...
Lockheed Martin
Jan 09, 2026
Structures Mechanical Engineer
Lockheed Martin Sunnyvale, CA, 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. What does this role look like? The Terminal High Altitude Area Defense (THAAD) program...
Lockheed Martin
Jan 09, 2026
Mid-Career Mechanical Engineer
Lockheed Martin Sunnyvale, CA, 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. What does this role look like? The Terminal High Altitude Area Defense (THAAD) program...
Lockheed Martin
Jan 09, 2026
Propulsion Mechanical Engineer - mid career
Lockheed Martin Sunnyvale, CA, 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. What does this role look like? The Terminal High Altitude Area Defense (THAAD) program...
Lockheed Martin
Jan 09, 2026
Electrical Engineer - Mid Career
Lockheed Martin Sunnyvale, CA, 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. What does this role look like? The Terminal High Altitude Area Defense (THAAD) program...
Lockheed Martin
Jan 09, 2026
Integrated Program Planner II
Lockheed Martin Sunnyvale, CA, USA
Description: Protecting what matters most is the mission that matters most. 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. We have an opportunity for...
Lockheed Martin
Jan 08, 2026
Mechanical Engineer - Early Career
Lockheed Martin Sunnyvale, CA, 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. The Terminal High Altitude Area Defense (THAAD) program is looking for a motivated early career Mechanical Engineer to join the team. This individual will work in a dynamic team environment which oversees the full life cycle of the THAAD...
Lockheed Martin
Jan 08, 2026
Information System Security Officer (ISSO)- Early Career
Lockheed Martin Sunnyvale, CA, 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 a Information System Security Officer (ISSO) - Early Career in Sunnyvale, CA. Classified Cybersecurity ISSOs help secure lifesaving products and critical state-of-the-art engineering and manufacturing systems...
Lockheed Martin
Jan 08, 2026
Guidance, Navigation, & Control Engineer (Level II) - Secret clearance
Lockheed Martin Sunnyvale, CA, USA
Description: About Lockheed Martin Space: 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 About the Role: This is a position within the...
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