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41 level 3 software engineer jobs found

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Lockheed Martin
Jun 25, 2026
Systems Engineer - Software Safety
Lockheed Martin Huntsville, AL
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space! As we enter a new era of Strategic Weapon Systems, we are a pioneer, partner, innovator and builder. Do you have a passion for working on emerging technologies? Are you looking for a growth opportunity where you can contribute to a very significant mission? Come be part of a culture that encourages employees to think big, perform with excellence and build incredible products! We provide the resources, inspiration and focus. If you have the passion and courage to dream big, then we want to build a better tomorrow with you! Lockheed Martin Space in Huntsville, AL has an immediate opening for a Software Safety Engineer to help field a new missile defense system, Long Range Hypersonic Weapon, that the nation urgently needs. In this role, you will use your expertise to ensure that safety is crafted into hardware and software products and that controls are incorporated and remain effective...
Lockheed Martin
Jun 25, 2026
Software Engineer - Secret Clearance
Lockheed Martin Huntsville, AL
Description: What We’re Doing Lockheed Martin is developing innovative solutions to meet the evolving needs of our customers. As a leader in the defense and aerospace industry, we are committed to delivering high-quality products that exceed expectations. Who We Are Our Team, the Modeling and Simulation Contract for Framework and Tools (MASC-F) team, is constantly engineering, developing and integrating new capabilities for the U.S. Missile Defense System. MASC-F develops and sustains the simulation framework supporting the MDA's test needs. The Work Lockheed Martin Rotary & Mission Systems is seeking a full-time Software Engineer. In this role, you will work in a collaborative environment, work to develop software capabilities for product implementation and demonstrate completed tasks. The successful candidate will have experience and/or knowledge of object oriented software development, Java/C++ or similar languages Who You Are We are seeking a highly motivated...
Lockheed Martin
Jun 22, 2026
Electronics Engineer III, Interim Secret
Lockheed Martin Huntsville, AL
Description: Join Our Team as an Electronics Engineer where you will work on the development of a sophisticated state-of-the-art avionics product in a world class Integrated Product Development environment. 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...
Lockheed Martin
Jun 19, 2026
Sr Systems Engineer-GMD Weapons Systems
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The selected Systems Engineer responsibilities will include the support of the Ground Weapons System (GWS) program as an individual contributor on the A&D Requirements team. This role is responsible for developing Systems Engineering products that directly support the design and development of the GWS capability on behalf of the Missile Defense Agency (MDA). -The selected candidate should thrive in a fast-paced work environment with high expectations, collaborative/teams comprised of all experience levels. -Due to the...
Lockheed Martin
Jun 19, 2026
Production Test Engineer ATE (Missile Assembly) - Early Career
Lockheed Martin Troy, AL
Description: 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 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. This is a place for engineers, scientists, and problem-solvers who are ready to engage deeply, think critically, and build with purpose. You will not just launch a career. You will be part of something bigger. This is where the best are built. You will be the Production Test Engineer (Missile Assembly) (ATE) for the Missile Assembly team. Our team is responsible for developing and implementing automated test equipment, manufacturing test planning, and electro‑mechanical integration to support Production...
Lockheed Martin
Jun 19, 2026
Software Engineer, Sr - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The selected software Engineer responsibilities will include the support of the GWS-GSS IPT. You be responsible for software development execution and then will monitor, measure, control and report on the test progress, the product quality status and the test results, adapting the test plan and compensating as needed to adjust for evolving conditions. Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to advancing scientific discovery and harnessing innovation to make the world a...
Lockheed Martin
Jun 19, 2026
Software Automated Test Engineer - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The Automated Software Test Engineer will support the Missile Defense Agency’s GMD Weapon System program by developing, maintaining, and executing automated test capabilities used to verify mission-critical software functionality. The engineer will work with software development, systems engineering, integration, cybersecurity, and test teams to ensure software products meet technical, program, and customer requirements. Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to...
Lockheed Martin
Jun 19, 2026
Systems Engineer - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work This position is for a Systems Engineer to support the IFICS Data Terminal (IDT) product team on the Ground Based Mid-course Defense (GMD) Weapon System (GWS) program. The candidate should have experience taking on progressively challenging responsibilities, demonstrating initiative, and driving innovative solutions. They should be recognized as a self-starter with a proven ability to lead teams, learn quickly, and deliver results in dynamic environments. In this role the candidate will perform Systems Engineering functions...
Lockheed Martin
Jun 19, 2026
Software Automated Test Engineer - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The selected Principal Test Engineer responsibilities will include the support of the GWS-IDT IPT. You be responsible for scheduling the tests for execution and then will monitor, measure, control and report on the test progress, the product quality status and the test results, adapting the test plan and compensating as needed to adjust for evolving conditions. Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to advancing scientific discovery and harnessing innovation to make the...
Lockheed Martin
Jun 19, 2026
Software Engineer, Sr - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The selected software Engineer responsibilities will include the support of the GWS-GSS IPT. You be responsible for software development execution and then will monitor, measure, control and report on the test progress, the product quality status and the test results, adapting the test plan and compensating as needed to adjust for evolving conditions. Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to advancing scientific discovery and harnessing innovation to make the world a...
Lockheed Martin
Jun 19, 2026
Automated Software Test Engineer - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The selected engineer will support a fast-pace, forward looking Software Development environment on the GMD Fire Control (GFC) product team's Automated Test team. Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to advancing scientific discovery and harnessing innovation to make the world a safer place. Our RMS business in Huntsville, AL is a hub of talented engineers, scientists, and professionals committed to shaping the future of defense technology. We value collaboration,...
Lockheed Martin
Jun 12, 2026
Systems Engineer Senior
Lockheed Martin Huntsville, AL
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. OVERVIEW: 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 THAAD Independent Research...
Lockheed Martin
Jun 10, 2026
Packaging Engineer
Lockheed Martin Courtland, AL
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 Packaging Engineer Sr to support Lockheed Martin (LM) Space -...
Lockheed Martin
Jun 04, 2026
Systems Engineer, M&S Analysis & Algo - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work As a member of an Agile Scrum team performing Algorithm development and Analysis for the GMD Weapon System (GWS) Fire Control (GFC) product, you will be part of the team that develops new algorithms, improves old algorithms, and assesses the effectiveness and performance of them in the context of the GFC software (currently ~1.5 million lines of code) that controls the missile defense system that protects the United States from intercontinental ballistic missile attack. The selected Systems Engineer will work in a...
Lockheed Martin
Jun 04, 2026
Automated Software Test Engineer, STAFF - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The selected engineer will support a fast-pace, forward looking Software Development environment on the Architecture and Delivery (A&D) product team's Automated Test and Verification team, with tasking directed at Continuous Integration and Continuous Deliver (CI/CD). Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to advancing scientific discovery and harnessing innovation to make the world a safer place. Our RMS business in Huntsville, AL is a hub of talented engineers,...
Lockheed Martin
Jun 04, 2026
Sr. Automated Software Test Engineer - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The selected engineer will support a fast-pace, forward looking Software Development environment on the Architecture and Delivery (A&D) product team's Automated Test and Verification team, with tasking directed at Continuous Integration and Continuous Deliver (CI/CD). Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to advancing scientific discovery and harnessing innovation to make the world a safer place. Our RMS business in Huntsville, AL is a hub of talented engineers,...
Lockheed Martin
Jun 02, 2026
Electromagnetic Environmental Effects (E3) Engineer
Lockheed Martin Huntsville, AL
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 an Electromagnetic Engineering Effects (E3) Engineer you support the Specialty...
Lockheed Martin
May 28, 2026
Software Automated Test Engineer, Sr - GMD Weapons Systems (GWS)
Lockheed Martin Huntsville, AL
Description: What We're Doing Become a part of something IMPACT-ful! Ground Missile Defense (GMD) is the heart of the Missile Defense System and a key element of our nation’s defense against ballistic missile attacks. The GMD Weapon System (GWS) processes data from multiple sensors to identify and characterize the inbound ballistic missile threat, plans the best defensive solution, and launches the intercepting missiles to negate the threat. The Work The selected Principal Test Engineer responsibilities will include the support of the GWS-IDT IPT. You be responsible for scheduling the tests for execution and then will monitor, measure, control and report on the test progress, the product quality status and the test results, adapting the test plan and compensating as needed to adjust for evolving conditions. Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to advancing scientific discovery and harnessing innovation to make the...
Lockheed Martin
May 28, 2026
Mechanical Engineer Staff
Lockheed Martin Troy, AL
Description: You will be the Mechanical Review Board Design Engineer Staff for the Air Dominance production team. Our team is responsible for assembly, integration, testing, coating, and packout of an Air Dominance missile. What You Will Be Doing As the Mechanical Review Board Engineer, you will be responsible for supporting the production programs by identifying and resolving production issues, defects, and failures. You will work closely with cross-functional teams to develop and implement viable solutions, often in time-sensitive situations. Your responsibilities will include: •Participate as a key member in the Material Review Board (MRB) process, including reviewing non-conforming hardware for performance impacts, identify appropriate root cause and ensure corrective action is taken to prevent recurrence •Coordinate effort within the Mechanical, Quality and Manufacturing team •Support weekly meetings to review status to leadership Why Join Us Do you want to be...
Lockheed Martin
May 28, 2026
Tool Engineer Senior / Tool Design / GD&T - Troy, AL
Lockheed Martin Troy, AL
Description: You will be the Tool Engineer Senior / Tool Design / GD&T for the Pike County Operations (PCO) team. Our team is responsible for creating innovative solutions to manufacture missile components and final assemblies, ensuring compliance with government regulations and company requirements. What You Will Be Doing As the Senior Tool Designer, you will be responsible for collaborating with cross‑functional teams to design, fabricate, and implement special tools and fixtures, utilizing CAD software such as PTC Creo and CATIA V5. You will create detailed tool design CAD models and drawings, and provide shop‑floor support to resolve technical and manufacturing issues. Your responsibilities will include, but are not limited to: Collaborating with missile designers, production operations, and stakeholders to conceptualize and design special tools and fixtures Creating detailed tool design CAD models and drawings using PTC Creo and CATIA V5...
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