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29 systems engineer sr level 3 jobs found in King of Prussia, PA

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Lockheed Martin
May 28, 2026
Systems Engineer Sr, Level 3
Lockheed Martin King of Prussia, PA
Description: 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. • Generating and simulating operational level plans to explore the art of the possible, how we could defend the ultimate high ground in a future space war • Dynamically optimizing both terrestrial and space-based sensors to provide comprehensive space domain awareness • Strategically optimizing the placement and maneuvering of constellations of satellites to satisfy...
Lockheed Martin
May 12, 2026
Systems Engineer Sr, Level 3
Lockheed Martin King of Prussia, PA
Description: 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. • Generating and simulating operational level plans to explore the art of the possible, how we could defend the ultimate high ground in a future space war • Dynamically optimizing both terrestrial and space-based sensors to provide comprehensive space domain awareness • Strategically optimizing the placement and maneuvering of constellations of satellites to satisfy...
Lockheed Martin
May 01, 2026
Systems Engineer Sr, Level 3
Lockheed Martin King of Prussia, PA
Description: 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. • Generating and simulating operational level plans to explore the art of the possible, how we could defend the ultimate high ground in a future space war • Dynamically optimizing both terrestrial and space-based sensors to provide comprehensive space domain awareness • Strategically optimizing the placement and maneuvering of constellations of satellites to satisfy...
Lockheed Martin
May 15, 2026
Reliability Sr Engineer
Lockheed Martin Moorestown, NJ
Description: We are committed to work life balance by promoting this HYBRID TELEWORK opportunity. These job requirements allow the employee to work at a Lockheed Martin-designated office or job site for part of their schedule and has a predefined regular, recurring telework schedule for the remaining part of their work schedule. At the dawn of a new age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing workforce are on a mission to make a difference in the world. Our World-class team leverages 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. We are looking for a Reliability & Maintainability Sr Engineer to join our team. In this...
Lockheed Martin
May 08, 2026
Electrical Engineer, Sr
Lockheed Martin Moorestown, NJ
Description: What We're Doing As a part of the Lockheed Martin community, we take on challenges and find solutions using creativity and collaboration. If you’re looking to be a part of a passionate team solving these complex problems, then Rotary and Mission Systems is the place for you. The Work We are seeking an experienced Electrical Engineer, Sr to support multiple programs in the Integrated Warfare Systems & Sensors business. This position requires knowledge of electrical engineering principles, working in a team environment, and general knowledge of other related disciplines. Specific tasking will be but not limited to overall design of launcher electrical systems, including the selection and use of Commercial Off the Shelf components, custom hardware design, and setting requirements for chassis/enclosure design. Responsibilities include: • Support the electrical design sustainment of the MK41 Vertical Launching System and new and exciting designs of the next...
Lockheed Martin
May 06, 2026
Sr. Mechanical Engineer
Lockheed Martin Moorestown, NJ
Description: What We're Doing As a part of the Lockheed Martin community, we take on challenges and find solutions using creativity and collaboration. If you’re looking to be a part of a passionate team solving these complex problems, then Rotary and Mission Systems is the place for you. The Work We are seeking a Sr. Mechanical Engineer to join the RF & Microwave Packaging & Analysis group in the Sensor Mechanical Design Center. In this role, the selected candidate will work as part of an engineering team to develop electro-mechanical packaging concepts for elements of large scale radars or airborne systems. This candidate will interface with Systems, Electrical Engineers, Drafting and Operations personnel in the development of detailed packaging designs and assembly strategies. The candidate will also work on advanced microelectronics technologies in support of low-SWaP (Size Weight, and Power) solutions to meet Lockheed Martin sensor and mission needs. The...
Lockheed Martin
Apr 21, 2026
Sr. Mechanical Engineer
Lockheed Martin Moorestown, NJ
Description: What We're Doing As a part of the Lockheed Martin community, we take on challenges and find solutions using creativity and collaboration. If you’re looking to be a part of a passionate team solving these complex problems, then Rotary and Mission Systems is the place for you. The Work We are seeking a Sr. Mechanical Engineer to join the Mechanical Antenna Design group in the Sensor Mechanical Design Center. In this role, the selected candidate will work as part of an engineering team to responsible for the design, analysis, verification, and production support of mechanical structures, enclosures, and electronic modules for multiple programs across the RMS Line of Business. This candidate will interface with Systems, Electrical Engineers, Drafting and Operations personnel in the development of detailed designs and assembly strategies. The selected candidate will work closely with cross-functional teams in the design, development, integration, and testing and...
Lockheed Martin
Apr 03, 2026
Senior RF Engineer
Lockheed Martin Moorestown, NJ
Description: WHAT WE'RE DOING As a part of the Lockheed Martin community, we take on challenges and find solutions using creativity and collaboration. If you’re looking to be a part of a passionate team solving these complex problems, then Rotary and Mission Systems is the place for you. THE WORK We are seeking a talented engineer to report directly to the Manager of RF & Microwave Engineering. The Sr RF Engineer will significantly contribute to the design and development of hardware equipment to support antennas, phased array antennas, active electronic steerable phased array antennas, and associated distribution architectures for RADAR and other military systems. This includes lower level requirement development, component selection, schematic creation, printed wiring board design, prototype testing and supporting transition to production of the hardware. This position also requires the communication, interpersonal, and business skills needed to be a member of a...
Lockheed Martin
Mar 26, 2026
Sr. Mechanical Engineer
Lockheed Martin Moorestown, NJ
Description: What We're Doing As a part of the Lockheed Martin community, we take on challenges and find solutions using creativity and collaboration. If you’re looking to be a part of a passionate team solving these complex problems, then Rotary and Mission Systems is the place for you. The Work We are seeking a Sr. Mechanical Engineer to join the RF & Microwave Packaging & Analysis group in the Sensor Mechanical Design Center. In this role, the selected candidate will work as part of an engineering team to develop electro-mechanical packaging concepts for elements of large scale radars or airborne systems. This candidate will interface with Systems, Electrical Engineers, Drafting and Operations personnel in the development of detailed packaging designs and assembly strategies. The candidate will also work on advanced microelectronics technologies in support of low-SWaP (Size Weight, and Power) solutions to meet Lockheed Martin sensor and mission needs. The...
Lockheed Martin
Mar 18, 2026
RF Test Technical Specialist - Mid-Career
Lockheed Martin Moorestown, NJ
Description: WHAT WE’RE DOING At Lockheed Martin Rotary and Mission Systems, we're on a mission to drive innovation and uphold the highest standards of business ethics. We believe that by pushing the boundaries of visionary thinking, we can achieve exceptional results. As a Lockheed Martin employee, you'll have the opportunity to make a meaningful impact while working in an environment that values integrity and excellence. THE WORK Lockheed Martin Moorestown is seeking a highly motivated RF Test Technical Specialist Sr to support RF/millimeter wave test and development of advanced technology in our Microelectronics Center. In this role you will be performing test integration, TR Module\\RF radar sub-system design verification testing, micro-electronics troubleshooting and failure analysis as part of a highly skilled test engineering team. This exciting role offers great opportunity for growth and maturity on cutting edge technologies and advanced packaging for Next...
Lockheed Martin
May 06, 2026
Hardware Engineer Senior (SMES)
Lockheed Martin Mount Laurel Township, NJ
Description: Who We Are Lockheed Martin Rotary & Mission Systems (RMS) delivers advanced naval combat systems, automation technologies, and mission critical solutions for the U.S. Navy and international partners. Within the Autonomy Intelligence Maritime Solutions Integrated Engineering (AIMS IE) organization, the Machinery Controls & Automation Products department provides the control system capabilities that enable safe, reliable, and efficient shipboard operations across multiple platforms and customers. Our work demands deep technical rigor, disciplined execution, and forward looking innovation. What We’re Doing Within the Autonomy Intelligence Maritime Solutions Integrated Engineering (AIMS IE) organization, the Controls & Automation Products department provides essential control system capabilities that enable shipboard operations across a variety of platforms and customers. The Work The Hardware Engineer Sr. will be supporting all of the Machinery...
Lockheed Martin
Apr 23, 2026
Systems Engineer Senior (SMES)
Lockheed Martin Mount Laurel Township, NJ
Description: Who We Are Lockheed Martin Rotary & Mission Systems (RMS) delivers advanced naval combat systems, automation technologies, and mission critical solutions for the U.S. Navy and international partners. Within the Autonomy Intelligence Maritime Solutions Integrated Engineering (AIMS IE) organization, the Machinery Controls & Automation Products department provides the control system capabilities that enable safe, reliable, and efficient shipboard operations across multiple platforms and customers. Our work demands deep technical rigor, disciplined execution, and forward looking innovation. What We’re Doing Within the Autonomy Intelligence Maritime Solutions Integrated Engineering (AIMS IE) organization, the Controls & Automation Products department provides essential control system capabilities that enable shipboard operations across a variety of platforms and customers. The Work The Systems Engineer Sr. will be supporting all of the Machinery...
Lockheed Martin
Apr 16, 2026
Sr Systems Engineer for Security and Platform Services
Lockheed Martin Mount Laurel Township, NJ
Description: What We're Doing As a part of the Lockheed Martin community, we take on challenges and find solutions using creativity and collaboration. If you’re looking to be a part of a passionate team solving these complex problems, then Rotary and Mission Systems is the place for you. The Work Lockheed Martin's Rotary & Mission Systems is seeking a full-time Sr Systems Engineer for Security & Platform Services. In this role, you will: • Support multiple Integrated Warfare Systems & Sensors (IWSS) Line of Business (LOB) programs • Perform systems development tasks (design, code, test, integration) for a full spectrum of Cyber and/or Platform-as-a-Service (PaaS) solutions and the necessary supporting system and infrastructure • Develop new applications and integrating COTS and GOTS software to construct a complete solution • Travel between LM sites as well as customer sites Who We Are Lockheed Martin is a global aerospace, defense, and security company...
Lockheed Martin
May 12, 2026
Sr. Quality Engineer - Archbald, PA
Lockheed Martin Archbald, PA
Description: You will be the Sr. Quality Engineer for the Quality Engineering team. Our team is responsible for applying quality principles across design, production, and supplier processes to ensure product and process excellence. What You Will Be Doing As the Sr. Quality Engineer you will be responsible for driving rigorous quality practices that safeguard reliability and compliance throughout the product lifecycle. Your responsibilities will include, but are not limited to: Apply quality principles to design, incoming material, production control, and product evaluation. Conduct technical evaluations of requirements, specifications, models/designs, drawings, and procedures. Lead product‑failure investigations, material‑review‑board decisions, and corrective/preventive actions. Develop and implement strategies to improve internal and supplier performance and productivity. Design and analyze inspection and testing processes, perform statistical...
Lockheed Martin
Apr 24, 2026
Sr. Quality Engineer - Archbald, PA
Lockheed Martin Archbald, PA
Description: You will be the Quality Engineer Sr. for the Quality Engineering team. Our team is responsible for delivering world‑class quality assurance support to the Missiles & Fire Control (MFC) circuit‑card assembly line. What You Will Be Doing As the Quality Engineer Sr. you will be responsible for driving end‑to‑end quality initiatives that keep our hardware production on schedule and compliant. Your responsibilities will include, but are not limited to: Chairing Material Review Boards and facilitating Corrective Action Boards. Providing inspection and test support, and managing disposition of non‑conforming material. Preparing and executing First Article Inspections (FAIs), Process Line Verifications (PLVs) and Production Readiness Reviews (PRRs). Effectively communicate with Customer, Program team and other functional departments. Conducting Hardware Quality Assessments (HQAs) and Program Status Reviews (PSRs). Supporting internal and...
Lockheed Martin
Apr 08, 2026
Cyber Software Engineer Senior Staff – C++
Lockheed Martin Fort Meade, MD
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 $3000 payment! This position may be eligible for a $25K sign on bonus for external hires! Cyber Software Engineer Sr. Stf - C++ WHAT WE’RE DOING Lockheed Martin, Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the evolving threat of cyber warfare. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute. Here, you’ll work with cybersecurity experts on the forefront of threat protection and proactive prevention. In this fast-paced, real-world environment, you’ll draw on all your education and experience as well as the resources of Lockheed Martin to keep the threats at bay. THE WORK The GG C++ SWE is in an extremely customer facing role leading multi faceted...
Lockheed Martin
Apr 30, 2026
Senior Hardware Engineer (OCONUS/Shift) - Clearance Required
Lockheed Martin Bethesda, MD
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. And we’re reimagining how space can connect us, ensuring security and prosperity. THE WORK Lockheed Martin is seeking a talented Sr. Hardware Engineer with a TS/SCI w/ Poly clearance to work from an OCONUS location . This is an EARLY-MID CAREER (level 3) ROLE where candidates typically require...
Lockheed Martin
Apr 30, 2026
Hardware Engineer Senior (OCONUS/Day Staff )
Lockheed Martin Bethesda, MD
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. And we’re reimagining how space can connect us, ensuring security and prosperity. THE WORK Lockheed Martin is seeking a talented Hardware Engineer with a TS/SCI w/ Poly clearance to work from an OCONUS location . This is an EARLY-MID CAREER (level 3) ROLE where candidates typically require 3+...
Lockheed Martin
Apr 28, 2026
Software Engineer Sr C/C++
Lockheed Martin Manassas, VA
Description: Who we are Lockheed Martin is a global leader in aerospace, defense, and technology solutions. Our Manassas campus is a thriving center of engineering expertise, fostering a culture that encourages creativity, excellence, and the creation of exceptional products. Our team is made up of dedicated professionals who are passionate about pushing the boundaries of what's possible. What We’re Doing At Lockheed Martin, we're at the forefront of cutting-edge technology and innovation. Our campus in Manassas, Virginia is a hub for engineering excellence, where we tackle some of the world's most challenging engineering problems. We pride ourselves on our culture of creativity, excellence, and product innovation. The Work Lockheed Martin Rotary and Mission Systems is seeking a Software Engineer C/C++ Sr. in Manassas, VA. In this role you will have the responsibility of: • Participate in a cross‑functional team to evaluate a large, complex legacy code base, assess the...
Lockheed Martin
Apr 30, 2026
Product Quality Engineer Sr.
Lockheed Martin Owego, NY
Description: WHO WE ARE Our customers are world-wide and so is our reputation for creating original solutions with the latest technologies. Our products keep our customers safe and bring them home to their families at night. 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 Product Quality Engineer Sr. (PQE) in support of SEMS Operations shall support the Quality Program Manager across multiple programs at the Owego site. The Product Quality Engineer Sr. (PQE) shall support assigned programs to ensure product delivered to the customer meets expectations and all requirements imposed. Program performance shall be monitored and reported, build...
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