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153 senior systems engineer level 3 jobs found

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Lockheed Martin
Feb 06, 2026
Senior Systems Engineer, Level 3 - Clearance Required
Lockheed Martin Littleton, CO, 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 Systems Engineer, you will be part of the System Engineering team within the MOATS...
Lockheed Martin
Mar 03, 2026
Systems Engineer Senior - Level 3
Lockheed Martin Fort Worth, TX, USA
Description: We are Lockheed Martin At Lockheed Martin, we are driven by innovation and a commitment to excellence. As a Senior Systems Engineer, you will play a critical role in ensuring technical success and lifecycle management across advanced programs. This is an exciting opportunity to leverage your expertise in systems engineering to support cutting-edge technologies and contribute to mission-critical solutions. What You Will Be Doing As a Senior Systems Engineer supporting Advanced Development Programs (ADP), your responsibilities will include: • Supporting and overseeing the execution of the Systems Engineering (SE) process, including development, evaluation, and measurement of technical processes to ensure program requirements are met. • Conducting integrated technical planning and control, managing the requirements process, generating and analyzing metrics, and reporting on technical efforts. • Developing, leading, and presenting engineering milestone events...
Lockheed Martin
Feb 17, 2026
Systems Engineer Senior - Level 3
Lockheed Martin Palmdale, CA, USA
Description: You will be the Systems Engineer Senior - Level 3 for the Advanced Development Program (ADP) which is responsible for pioneering next‑generation aircraft technologies. What You Will Be Doing As the Systems Engineer Senior - Level 3 you will be responsible for translating ambitious concepts into verifiable system designs, driving the integration of cutting‑edge engineering disciplines, and delivering results in a fast‑paced, innovative environment. Your responsibilities will include: - Leading system architecture and trade‑study activities for advanced aircraft concepts. - Driving Model‑Based Systems Engineering (MBSE) practices and tool adoption. - Coordinating multidisciplinary teams to execute agile development cycles. - Managing multiple concurrent assignments while maintaining technical rigor and schedule commitments. - Producing technical risk assessments and present actionable solutions to senior leadership. What’s In It For You We are committed to...
Lockheed Martin
Feb 17, 2026
Systems Engineer Senior - Level 3
Lockheed Martin Fort Worth, TX, USA
Description: We are Lockheed Martin You will be the Systems Engineer Senior for the F-35 Technical Management / Life Cycle Management (LCM) Team. What You Will Be Doing As the Systems Engineer Senior your responsibilities will include: • Leading and overseeing the execution of the Systems Engineering (SE) process, including development, evaluation, and measurement of technical processes to ensure program requirements are met. • Conducting integrated technical planning and control, managing the requirements process, generating and analyzing metrics, and reporting on technical efforts. • Developing, leading, and presenting engineering milestone events such as Systems Engineering Technical Review (SETR) events, including SRR, PDR, CDR, TRR, FCA, PCA, and more. • Performing detailed technical integration across critical program functions, ensuring seamless coordination and communication. • Creating bids and Bases of Estimates (BOEs), identifying risks and opportunities, and...
Lockheed Martin
Jan 28, 2026
Systems Engineer Senior - Level 3
Lockheed Martin Marietta, GA, USA
Description: You will be the Systems Engineer Senior - Level 3 for the Advanced Development Program (ADP) which is responsible for pioneering cutting‑edge aircraft concepts and delivering advanced system solutions. What You Will Be Doing As the Systems Engineer Senior - Level 3 you will be responsible for driving complex system‑engineering efforts within the historic Skunk Works environment, ensuring integration, risk management, and timely delivery of high‑impact projects. Your responsibilities will include: Coordinating with cross‑functional teams to ensure seamless integration and timely delivery. Applying system‑engineering principles to meet milestones, manage risk, and validate solutions. Communicating status, risks, and recommendations to stakeholders to keep projects on target. Developing and authoring requirements and supporting documentation aligned with customer needs. What’s In It For You We are committed to supporting your work‑life balance and...
Lockheed Martin
Feb 19, 2026
Senior Software Systems Engineer - Level 3
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. The Software Systems Engineer will use Model-Based Systems Engineering (MBSE)...
Lockheed Martin
Feb 19, 2026
Systems Engineer Senior - Level 3
Lockheed Martin Orlando, FL, USA
Description: What You Will Be Doing: Join the Digital Sustainment and Analytics (DSA) – Sustainment Integrated Tools & Engineering (SITE) Team within Lockheed Martin, where we are revolutionizing our operations and business processes to deliver exceptional value to our customers. We are seeking a highly motivated and talented Systems Engineer to support our Sustainment Field Engineering initiatives, software integration and deployment. This is a challenging and rewarding mid-level position, ideal for experienced professionals looking to leverage their skills and expertise in systems engineering to drive innovation and success. About Our Team: Our team is a dynamic and collaborative group of professionals who are passionate about delivering high-quality solutions to our customers. We offer a supportive work environment, as well as opportunities for professional development and growth. Your Mission: As a Systems Engineer you will play a critical role in navigating the...
Lockheed Martin
Feb 17, 2026
Systems Engineer Senior - Payload Integration (Level 3)
Lockheed Martin Littleton, CO, USA
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space OVERVIEW: At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every 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. Going to space is just the beginning. It’s what you do when you get there that matters. Lockheed Martin builds the satellites and spacecraft that do amazing things in space for government and commercial customers. Connecting people. Advancing discovery. And protecting what matters most. Lockheed Martin-built satellites...
Lockheed Martin
Feb 11, 2026
Systems Test Engineer Senior (Level 3)
Lockheed Martin King of Prussia, PA, USA
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space OVERVIEW: 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 What does this role look like? Lockheed Martin Space is seeking a senior systems test engineer to join the Global Security Future...
Lockheed Martin
Feb 04, 2026
Systems Engineer Senior (Level 3)
Lockheed Martin King of Prussia, PA, USA
Description: The coolest jobs on this planet… or any other… are with Lockheed Martin Space OVERVIEW: At the dawn of a new space age, Lockheed Martin is a pioneer, partner, innovator and builder. Our amazing people are on a mission to make a difference in the world and every 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. Going to space is just the beginning. It’s what you do when you get there that matters. Lockheed Martin builds the satellites and spacecraft that do amazing things in space for government and commercial customers. Connecting people. Advancing discovery. And protecting what matters most. Lockheed Martin-built satellites...
Lockheed Martin
Feb 03, 2026
Systems Engineer Senior (Level 3)
Lockheed Martin Longmont, CO, USA
Description: Curious where the nation is going with Overhead Persistent Infrared? At Lockheed Martin, we are shaping the future of space exploration and defense. As a leader in the new space age, we are known for our pioneering spirit, collaborative partnerships, innovative thinking, and commitment to building remarkable products. Our team is dedicated to making a positive impact on the world by leveraging our unique skills and experiences to tackle complex engineering challenges. We are passionate about delivering exceptional results and creating a better tomorrow. We are looking for talented individuals to join our team! If you share our passion for innovation and our commitment to making a difference in the world, we welcome you to join us. What does this role look like? The Boulder/Longmont Teams is looking for Systems Engineers (SE) for the Resilient MEO Missile Warning and Tracking (RMWT) Ground Management and Integration (GMI) program. As a key member of...
Lockheed Martin
Mar 06, 2026
System Engineer-IT Sr
Lockheed Martin Littleton, CO, USA
Description: Signal Reconnaissance (SR) Program This is your opportunity to be challenged to make a difference in the world and every single day we use our skills and experiences to create, design and build solutions to some of the worlds’ hardest infrastructure engineering problems for the RMS SR program. System Administration The team handles routine backups, security patch application, and compliance maintenance across Linux and Windows physical and virtual systems. They manage baseline configuration, provide Active Directory and LDAP user account support, troubleshoot technical issues, and administer certificate services. Virtualization Virtual infrastructure is overseen with VMware ESXi/vCenter and Hyper V. Responsibilities include provisioning, maintaining, and de commissioning virtual machines to meet evolving workload demands. Network Administration Under senior engineer guidance, the team assists with configuring and monitoring Ethernet switches, routers,...
SAIC
Mar 04, 2026
NASA Software Systems Engineer
SAIC WV
Description SAIC is seeking a Software Engineer to support our NASA Independent Verification and Validation (IV&V) customer. The candidate will support one or more projects of the IV&V program at NASA's Katherine Johnson Independent Verification and Validation Facility in Fairmont, West Virginia. This position is full-time and will be performed onsite and may have limited occasional travel. Project work may include: Performing various Systems / Software Engineering activities on NASA Spacecraft and Launch Vehicle systems throughout NASA software development lifecycle phases, including analyses of concept of operations, requirements, detailed design, interfaces, static code, software, software and hardware-in-the-loop testing, and independent testing. Assessing development artifacts for correctness, completeness, consistency, ambiguity, and feasibility with regards to technical references when evaluating requirements, design, algorithms, code, and test...
SAIC
Mar 04, 2026
Senior Principal Specialty Engineer
SAIC HI
Description SAIC is seeking a Senior Principal Specialty Engineer to serve in HQ Pacific Air Forces (HQ/PACAF), Oahu, Hawaii. Work will be in PACAF A8Z Advanced Programs Division to provide subject matter expertise in technologies applicable to USAF warfighting capabilities and long-term continuity. The successful applicant will steer development of advanced Science and Technology (S&T) programs to transition into Pacific Air Forces, the Combat Air Forces (CAF), and theDepartment of the Air Force (DAF) writ large. The role coordinates across mutltiple MAJCOMs, Air Staff and other organizations asrequired to advocate with intent to field warfighting capabilities across the warfighting portfolio. They will shape PACAF, CAF, and DAF programming strategy to ensure future warfighter requirements are met. This position requires up to 25% travel to CONUS, Alaska, and Hawaii areas. OCONUS travel possible. Key duties/responsibilities include, but are not limited to:...
Lockheed Martin
Mar 03, 2026
Software Engineer Sr
Lockheed Martin Fort Worth, TX, USA
Description: WHO WE ARE The Skunk Works (Lockheed Martin Advanced Development Programs) is looking for world-class talent in Software Engineering to be a part of a team that will carry on our 80-year tradition-making history in advanced aircraft development. The vehicle management software team writes software for a wide range of aircraft subsystems that make an airplane fly. We are a highly innovative, multi-site, fast paced team developing modular and reusable software to support both our current platforms and the aircraft of the future. WHAT’S IN IT FOR YOU 3-day weekend every weekend! 4-10 Mon-Thursday option + Flexible Schedules This team is working new development software where our team members get to work hands on from the lab to the aircraft in all stages of development, including design, code, integration, and lab and field test. We work on a wide range of technologies and give our team members the opportunity to drive their career towards their area of interest. You...
Lockheed Martin
Mar 03, 2026
Software Engineer, Sr - Combat Systems
Lockheed Martin Camden, 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 The Command, Control, Communications (C3) organization is seeking an experienced Software Engineer to lead the development of advanced software that drives next generation ship prototypes and mission critical capabilities. In this senior role you will architect, design, integrate, and validate high performance tactical components that support rapid prototyping of new vessel configurations, rigorous system performance evaluation, and comprehensive verification of combat system functions. This position is located at a facility that requires special access and will require a U. S. DoD security clearance. Who We Are Lockheed Martin is a global aerospace, defense, and security...
Lockheed Martin
Mar 03, 2026
Senior Software Engineer
Lockheed Martin Moorestown, 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 The Lockheed Martin Rotary & Mission Systems Senior Software Engineer will have the opportunity to perform real-time processing software development in support of our radar signal processing product lines. Additionally, you will be working as part of an Agile team with domain experts from Software, Subsystems and Systems Engineering to understand requirements, establish architecture/design, implement sound solutions, develop unit tests, and support integration and sustainment activities. This position requires a U.S. DoD Security Clearance at the SECRET level. This position is located at a facility that requires special access. #REAS Basic Qualifications: • Bachelor’s Degree in...
Lockheed Martin
Mar 03, 2026
F-22 Digital Engineering Lead Senior Principal - Level 6
Lockheed Martin Fort Worth, TX, USA
Description: You will be the F-22 Digital Engineering Lead for the F-22 Product Integration Team (PIT). The PIT coordinates and ensures overall technical execution for F-22 Weapon System releases. What You Will Be Doing As the F-22 Digital Engineering Lead you will be responsible leading the transition of on-premises infrastructure to the cloud, architecting efficient and powerful cloud solutions using Amazon Web Services (AWS). You will also be responsible for architecture, implementation, and maintenance of the digital pipelines used for design, development, build, and delivery of the F-22’s products. Some travel will be required. Your responsibilities will include: • Assessing current on-premises infrastructure and develop a comprehensive migration strategy to the AWS cloud • Driving “extreme teaming” with hardware, flight test, and systems engineer groups to ensure seamless integration of cloud and on premises solutions. • Designing and implementing scalable, highly...
Lockheed Martin
Feb 26, 2026
Physics Modeling Systems Engineer, Sr
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 We are seeking an experienced Senior Systems Engineer to support multiple Rotary and Mission Systems (RMS) programs and participate in all phases of the systems engineering process (system design, requirements development, modeling and simulation and test). The engineer will leverage RMS systems engineering processes and procedures while performing their respective engineering and verification activities. In this important role, you will collaborate in an Agile environment with other engineering disciplines and program personnel. A desire to learn and adopt emerging technologies and tools will be key to success in this role. The core responsibilities of this role will be: •...
Lockheed Martin
Feb 26, 2026
Computer Vision Software Engineer, Senior (Level III)
Lockheed Martin Littleton, CO, 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 Team : You’ll collaborate with some of the...
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