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139 senior software engineer jobs found in King of Prussia, PA

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Lockheed Martin
Mar 26, 2026
Senior Software Engineer - Radar Modeling and Simulation
Lockheed Martin King of Prussia, PA, USA
Description: Who We Are Lockheed Martin is dedicated to shaping, developing, & advancing technologies & capabilities with a focus on our customers' needs as part of our 21st Century Security vision. We foster collaborative innovation, provide opportunities for career development, & empower our employees with the skills needed to create cutting-edge products & solutions that keep our users Ahead of Ready. Who You Are As a Senior Software Engineer in the Radar Modeling and Simulation group, you will develop high performance C++ software. Your contributions will directly support radar modeling, scene modeling, signal construction, signal processing, and radar control processing components within simulation and digital twin environments. Your software will operate as part of a system of systems integrating with external components to enable high volume and high fidelity radar modeling and simulations. You will apply a systems engineering perspective to ensure delivery...
Lockheed Martin
Mar 19, 2026
Senior Software Engineer (Top Secret Clearance)
Lockheed Martin King of Prussia, PA, USA
Description: Lockheed Martin’s Victor Portfolio of Space Security is seeking a highly skilled, motivated, and experienced Senior Software Engineer to join an Agile, cross‑functional team dedicated to protecting critical space assets. This role will focus on developing web‑based applications within an open‑architecture infrastructure that supports mission‑critical space‑security operations. The successful candidate will collaborate with internal development teams and subject‑matter experts, and thrive in a fast‑paced environment where each day brings new challenges. Key Responsibilities • Full‑Lifecycle Development – Design, implement, test, deploy, and maintain web applications and services that enable space‑asset protection. • Agile Collaboration – Participate in Scrum ceremonies (stand‑ups, sprint planning, retrospectives) and contribute to continuous‑improvement of team processes. • Open‑Architecture Integration – Build modular, reusable components that conform to...
Lockheed Martin
Jan 28, 2026
Senior Software Engineer - Radar Modeling and Simulation
Lockheed Martin Camden, NJ, USA
Description: Who We Are Lockheed Martin is dedicated to shaping, developing, & advancing technologies & capabilities with a focus on our customers’ needs as part of our 21st Century Security vision. We foster collaborative innovation, provide opportunities for career development, & empower our employees with the skills needed to create cutting-edge products & solutions that keep our users Ahead of Ready. Who You Are As a Senior Software Engineer in the Radar Modeling and Simulation group, you will develop high performance C++ software. Your contributions will directly support radar modeling, scene modeling, signal construction, signal processing, and radar control processing components within simulation and digital twin environments. Your software will operate as part of a system of systems integrating with external components to enable high volume and high fidelity radar modeling and simulations. You will apply a systems engineering perspective to ensure...
Lockheed Martin
Mar 17, 2026
Senior Software Engineer
Lockheed Martin Moorestown, NJ, USA
Description: What We're Doing Lockheed Martin is shaping the future of defense through cutting edge radar and missile defense technologies, and we want you to help write the next chapter. As the premier developer of active electronically scanned array (AESA) radars and integrated air and missile defense solutions for the U.S. military, our allies, and more than 45 nations worldwide, we deliver world class situational awareness, early warning, and kill assessment capabilities in the most demanding environments. Join a global team of 35 000 engineers, software developers, and cyber experts who turn complex challenges into reliable, next generation systems that keep warfighters ahead of emerging threats. Your talent will power everything from space domain awareness to ground based radar testbeds, ensuring the safety of today’s forces and the security of tomorrow’s world. The Work The Lockheed Martin Rotary & Mission Systems Senior Software Engineer will have the...
Lockheed Martin
Mar 17, 2026
Senior Software Engineer
Lockheed Martin Mount Laurel Township, NJ, USA
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 At Lockheed Martin's RMS business in Moorestown, NJ, we are working on many exciting defense programs and developing groundbreaking products and applications to meet the complex and evolving needs of our customers. A major portion of our work includes writing robust software applications. We are currently looking to fill roles on the Future Combat Systems Engineering Team. The Senior Software Engineer will contribute to a wide variety of projects as our business needs evolve. The core responsibility for this role will be to develop software using Java and/or C++. Coding in/and using related development tools and environments will be the major focus for this role. Who We...
Lockheed Martin
Feb 13, 2026
Senior Software Engineer
Lockheed Martin Owego, NY, USA
Description: WHO WE ARE At Lockheed Martin, we are driven by innovation and integrity. By applying the highest standards of business ethics and forward‑thinking, we can achieve anything. We value your skills, training, education, and background, and we are committed to providing a work environment that encourages and supports employees to think big, perform with quality, and build incredible products. WHAT WE'RE DOING We are seeking a **Software Engineer** to drive complex software solutions for Mission Systems. Working with only general direction, you will independently define solution approaches, lead design reviews, and ensure software deliverables meet cost, schedule, and technical requirements. THE WORK - Design, develop, and integrate software components for mission‑critical systems. - Lead technical design reviews and validate solutions against requirements. - Collaborate with internal and external customers, cross‑functional teams, and senior technical...
Lockheed Martin
Mar 17, 2026
Senior Software Engineer - Top Secret Clearance
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. *** This position is contingent upon the program award expected in early 2026.*** Within...
Lockheed Martin
Apr 09, 2026
Senior Software Engineer - Radar Control & Signal Processing
Lockheed Martin Moorestown, NJ, USA
Description: 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. Come and experience your future! What We’re Doing About the Training & Simulation Group (TSG) The TSG designs and delivers cutting edge real time radar antenna simulators that power radar backend processing for lab testing and immersive training exercises. Our solutions run on high performance distributed computing platforms using C++, CUDA, and NVIDIA GPUs, enabling mission critical simulation fidelity for defense customers worldwide. The Work • Software Architecture & Design – Define and evolve the core C++/CUDA architecture for real time radar antenna simulation, ensuring scalability, maintainability, and deterministic performance on...
Lockheed Martin
Apr 09, 2026
Senior Software Engineer Staff - Clearance Required
Lockheed Martin MD, USA
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 $3,000 payment! code-extrefer WHAT WE’RE DOING Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. 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...
Lockheed Martin
Mar 17, 2026
Senior Software Engineer Staff - Clearance Required
Lockheed Martin MD, USA
Description: WHAT WE’RE DOING Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. 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 In this role you will: • Analyze user requirements to derive software design and performance requirements • Design and code new software or modify existing software to add new features • Integrate...
Lockheed Martin
Feb 24, 2026
Senior Software Engineer
Lockheed Martin Severn, MD, 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 with IGNITE in Severn, MD. Role & Responsibilities: • Plans, conducts, and coordinates software development activities. •...
Lockheed Martin
Apr 09, 2026
Software Engineer - Senior Level
Lockheed Martin MD, USA
Description: WHAT WE'RE DOING Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. 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 As a Software Engineer - Senior Level you will be responsible for: • Developing, maintaining, and enhancing complex and diverse software systems (e.g., processing-intensive analytics, novel...
General Dynamics Mission Systems, Inc
Mar 16, 2026
Senior Advanced Software Engineer - Applied Mathematics
General Dynamics Mission Systems, Inc Manassas, VA, USA
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 years of job-related experience. Agile experience preferred.     CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position ROLE AND POSITION OBJECTIVES: We are seeking a highly skilled and experienced Software Engineer with a Mathematics background to join our dynamic team focused on undersea sensor systems. In this role, you will be responsible for designing, developing, and...
General Dynamics Mission Systems, Inc
Mar 10, 2026
Senior Test Engineer-Software Quality Assurance
General Dynamics Mission Systems, Inc Pittsfield, MA, USA
Basic Qualifications Requires a Bachelor’s degree in Engineering, or a related Science, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience..   CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is obtainable within a reasonable amount of time after hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required. Responsibilities for this Position Help make the technologies, products, and services that make a difference. At General Dynamics Mission Systems, we help our nation's heroes keep our nation safe by creating solutions so advanced, they redefine innovation for the world. We apply advanced technologies to solve our customers'...
Lockheed Martin
Feb 26, 2026
Senior DevSecOps Software Engineer
Lockheed Martin Mount Laurel Township, NJ, USA
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 is looking for a proactive software Engineer. In this role you will drive the design, implementation and integration of software products that support our readiness solutions for Naval Combat and Missile Defense Programs across multiple DoD customers. You will work within an Agile environment to transform high level system requirements into validated, deployable software. The Sr. Software Engineer will execute systems and software engineering processes starting from high level system requirements, product requirements allocation, and product software design through software implementation, integration and verification. Specific Duties: The engineer will: •...
Lockheed Martin
Apr 09, 2026
Cyber Software Engineer Senior Staff
Lockheed Martin MD, USA
Description: WHAT WE'RE DOING Lockheed Martin, Rotary Mission Systems Cyber & Intelligence invites you to step up to one of today’s most daunting challenges: the use of advanced electronics to undermine our way of life. As a cyber security professional at Lockheed Martin, you’ll protect the networks that our citizens and the world depend upon each minute: Financial assets. Healthcare information. Critical infrastructure. Hazardous materials. The uninterrupted flow of energy that keeps modern life moving. 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 In this role you will: • Analyze user requirements to derive software design and performance requirements • Design and code new software or modify existing software to add new features •...
Lockheed Martin
Apr 08, 2026
Cyber Software Engineer Senior Staff – C++
Lockheed Martin Fort Meade, MD, USA
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
Feb 27, 2026
Autonomy/AI Machine Learning Senior Engineer - Embedded Software
Lockheed Martin Stratford, CT, USA
Description: WHAT WE’RE DOING Define the future of aviation. Stand at the forefront of technology and innovation. Transform your ideas and dreams into reality. Join Lockheed Martin’s Flight Controls and Autonomy team and be part of the greatest transformation in aviation history; unmanned fully autonomous flight. The Flight Controls and Autonomy team is currently seeking highly motivated technology pioneers with a desire to steer and lead the Autonomy industry. Successful candidates must be willing and able to work on highly complex complicated problems, leading to world-changing technological breakthroughs. The team’s technical areas of emphasis include Fly-By-Wire Flight Control Systems, Guidance/Navigation & Control (GNC), Flight Test, Autonomy, Aviation Robotics, Perception, AI, and Motion Planning. THE WORK In this position the Engineer will be responsible for the design, analysis, optimization, lab testing and system level integration of software and...
Lockheed Martin
Feb 27, 2026
Autonomy/AI Machine Learning Senior Engineer - Embedded Software
Lockheed Martin Stratford, CT, USA
Description: WHAT WE’RE DOING Define the future of aviation. Stand at the forefront of technology and innovation. Transform your ideas and dreams into reality. Join Lockheed Martin’s Flight Controls and Autonomy team and be part of the greatest transformation in aviation history; unmanned fully autonomous flight. The Flight Controls and Autonomy team is currently seeking highly motivated technology pioneers with a desire to steer and lead the Autonomy industry. Successful candidates must be willing and able to work on highly complex complicated problems, leading to world-changing technological breakthroughs. The team’s technical areas of emphasis include Fly-By-Wire Flight Control Systems, Guidance/Navigation & Control (GNC), Flight Test, Autonomy, Aviation Robotics, Perception, AI, and Motion Planning. THE WORK In this position the Engineer will be responsible for the design, analysis, optimization, lab testing and system level integration of software and...
Lockheed Martin
Apr 10, 2026
Lead Electronics Engineer V
Lockheed Martin King of Prussia, PA, USA
Description: Join Our Team as an Senior Staff Electronics Engineer / Responsible Systems Engineer where you will lead development of sophisticated electronics products in a world class Integrated Product Team. Location: This position does not support teleworking ;the selected candidate will be located near our Lockheed Martin Space facility in: King of Prussia PA and be expected to work a flexible 9x80 schedule in the office full-time. 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...
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