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51 senior systems engineer level 3 jobs found

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Security Clearance United States senior systems engineer level 3
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Lockheed Martin
Feb 11, 2026
Senior Systems Engineer, Level 3
Lockheed Martin Cape Canaveral, FL, 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! The FBM Program is experiencing significant growth and we are currently seeking a Senior...
Lockheed Martin
Mar 14, 2026
Embedded Systems Security Engineer, Senior - Level 3
Lockheed Martin Orlando, FL, USA
Description: You will be a Cyber Systems Security EMBEDDED Engineer in the Program Protection Organization. Our organization oversees all aspects of Anti-Tamper and embedded Cybersecurity across Missiles and Fire Control. We are chartered with providing the skills and innovative technologies to develop, design, produce and sustain secure products across our Lines of Business. What You Will Be Doing As the Cyber Systems Security Engineer you will be responsible for providing embedded System Security Engineering design and implementation in all aspects of System Security Engineering (SSE) process in development of Department of Defense (DoD) Weapon Systems. Your responsibilities will include: • Assessing and mitigating System Security threats/risks throughout the embedded Weapon System development life cycle. • Validating System Security Engineering requirements decomposition, allocation and analysis for embedded Weapon Systems. • Implementing System Security Engineering...
Lockheed Martin
Apr 07, 2026
DevSecOps Engineer, Sr. - Embedded, Grand Prairie, TX
Lockheed Martin Grand Prairie, TX, USA
Description: Lockheed Martin is a global security and aerospace company that employs approximately 114,000 people worldwide and is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems, products and services. Lockheed Martin Missiles and Fire Control (MFC) is one of four Lockheed Martin business areas. MFC is a recognized designer, developer and manufacturer of precision engagement aerospace and defense systems for the U.S. and allied militaries. MFC develops, manufactures and supports advanced products for military customers that include the U.S. Army, Navy, Air Force, Marine Corps, NASA and dozens of foreign allies. MFC also offers a wide range of products and services for the global civil nuclear power industry and the military’s green power initiatives. As a Senior Software Engineer at MFC, you will join one of the largest networks of software professionals, implementing cutting edge technologies...
Lockheed Martin
Apr 03, 2026
Cyber Systems Security Engineer - Level 4
Lockheed Martin Marietta, GA, USA
Description: Lockheed Martin Aeronautics. Be More Than You Can Imagine. At Lockheed Martin Aeronautics, we're taking innovation to the next level. From designing the most advanced air vehicle to designing aircraft that defies gravity, our engineers live on the cutting edge of technology. Never have the opportunities for a technical career been so limitless. The Cyber System Security Engineer candidate is responsible for ensuring that cyber security requirements are properly defined, decomposed, allocated, implemented, and assessed to produce a cyber-resilient security design solution for the target platform (Air System or Weapon System). This includes participating in working groups, design reviews, and formal artifact reviews alongside other Subject Matter Experts (SMEs) within the overall platform; and providing security expertise to ensure that cyber security is considered early in the product development lifecycle. Applicant is expected to conduct a range of cyber risk...
Lockheed Martin
Apr 03, 2026
Integration & Test Engineer
Lockheed Martin Moorestown, NJ, USA
Description: WHAT WE'RE DOING The candidate will perform the unit level test, element integration and test, and support system level testing of COTS or custom computing hardware and real-time embedded signal processing firmware/software applications, including engineering/technical evaluations, equipment functional checks, and troubleshooting, test, and analysis. THE WORK This engineer will work with domain experts and military documentation to develop test software requirements, procedures, code and execute the tests. WHO YOU ARE The candidate must have excellent organizational skills, interpersonal skills and be able to communicate at both programmatic and technical levels with subordinates, peers, senior management levels and the customer. Basic Qualifications: - BS Degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent Technical Degree - Minimum of 2 year of professional level experience. - Experience in testing systems for...
Lockheed Martin
Apr 03, 2026
Electronics Engineer Senior - Level 3
Lockheed Martin Marietta, GA, USA
Description: You will be the Electronics Engineer Senior - Level 3 for the AMMM Communication, Navigation and Sensors team which is responsible for developing and sustaining avionic systems on AMMM aircraft platforms. What You Will Be Doing As the Electronics Engineer Senior - Level 3 you will be responsible for leading technical projects that span research, design, testing, and production of communication, navigation, radar, defensive, and sensor systems. Your responsibilities will include: Define system and equipment requirements from customer specifications and translate them into statements of work. Develop and execute test plans at both equipment and aircraft levels, delivering problem‑solving and work‑around solutions. Prepare technical proposals, effort estimates, and basis‑of‑estimate documentation for new and sustainment projects. Coordinate with senior leadership, suppliers, and customers to ensure schedule and budget alignment. Perform...
Lockheed Martin
Apr 02, 2026
Cyber Systems Security Engineer Staff
Lockheed Martin Fort Worth, TX, USA
Description: You will be the Cyber Systems Security Engineer Staff for the Integrated Fighter Group (IFG) – F‑22 CNI Crypto Team which is responsible for leading the development, integration, and sustainment of cryptographic hardware across the F‑22 platform. What You Will Be Doing As the Cyber Systems Security Engineer Staff you will be responsible for driving the end‑to‑end engineering of the F‑22 CNI Crypto portfolio. You will work closely with CNI, Racks, DHM, CM, DM, NSA, and F‑22 SPO partners to ensure secure, certified solutions that meet mission requirements. Your responsibilities will include: Lead engineering development and integration of the full F‑22 CNI Crypto hardware suite. Provide technical training and SME oversight for existing and planned cryptographic systems. Represent the F‑22 CNI team with Lockheed Martin management, NSA, and customer counterparts. Approve technical inputs for proposals, basis‑of‑estimate (BoE) documents, and...
Lockheed Martin
Apr 02, 2026
F-35 Field Support Engineer, F-35 Program-MCAS Cherry Point, Level 4
Lockheed Martin Havelock, NC, USA
Description: Join the Lockheed Martin Aeronautics company as an Aircraft Field Service Engineer (FSE) on our Aeronautics Field Sustainment (AFS) team! Our team is responsible for supporting the F-35 Program at our Marine Corp Air Station (MCAS) Cherry Point, North Carolina location. What You Will Be Doing As a Nose to Tail (NTT) FSE, the preferred candidate will be a subject Matter Expert (SME) in Avionics/Mission Systems (MS), APG/Vehicle Systems (VS) or Supportable Low Observable (SLO)/Structures. While also being an emerging authority in the other two disciplines that they are not a SME in. The NTT FSE will possess the skill set to accomplish advanced troubleshooting and analysis of MS, VS, or SLO. The candidate will act as part of the Lockheed Martin Aeronautics Field Sustainment (AFS) technical interface to the on-site Customer (both Operations and Maintenance) in resolving issues arising from maintenance and modification activities for all matters dealing with the F-35...
Lockheed Martin
Apr 02, 2026
Network Engineer III (Secret Clearance)
Lockheed Martin Colorado Springs, CO, USA
Description: What We’re Doing At Lockheed Martin, our Command and Control, Battle Management and Communications (C2BMC) National Team (C2NT) is pioneering the development and integration of cutting-edge technologies to advance the Missile Defense System, safeguarding the United States and its allies. Our collaborative and agile organization operates in a fast-paced environment, driving innovation through tasks such as sensor/weapon integration, algorithm development, user interface development, automated testing, cyber security, enterprise/infrastructure services, and enhancing leading-edge missile defense technologies. The Work You will support the implementation, maintenance, and troubleshooting of Lockheed Martin’s enterprise network infrastructure for the C2BMC program. Your day‑to‑day duties include configuring and maintaining routers, switches, and firewalls (Cisco, Juniper, Fortinet, Palo Alto), monitoring LAN/WAN performance, and resolving connectivity, latency, and...
Lockheed Martin
Mar 28, 2026
Aircraft Field Service Engineer (FSE) Staff, F-35 Program (Level 4)
Lockheed Martin South Burlington, VT, USA
Description: Join the Lockheed Martin Aeronautics Company as an Aircraft Field Service Engineer (FSE) on our Aeronautics Field Sustainment team! This position will support the F-35 program at Burlington Air National Guard Base (ANGB), Vermont. What You Will Be Doing As a Nose to Tail (NTT) FSE, the preferred candidate will be a subject Matter Expert (SME) in Avionics/Mission Systems (MS). It is desired the individual also be an emerging authority in APG/Vehicle Systems (VS) and Supportable Low Observable (SLO)/Structures, with the skill set to accomplish troubleshooting and analysis of MS, SLO or VS. The candidate will act as part of the Lockheed Martin Aeronautics Field Sustainment (AFS) technical interface to the US Air Force on-site customer (both operations and maintenance) resolving issues arising from maintenance and modification activities for all matters dealing with the F-35 aircraft. Additional responsibilities include: * Accomplish troubleshooting and analysis of...
Lockheed Martin
Mar 25, 2026
RTS DevSecOps Engineer
Lockheed Martin Boulder, CO, USA
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. THE WORK Lockheed Martin is seeking a skilled RTS DevSecOps Engineer with a final Secret security clearance to work from our Boulder, CO location. This is an EARLY-MID CAREER (level 3) ROLE where candidates typically require 3+ years of professional experience and a BS degree. The Real-time...
General Dynamics Mission Systems, Inc
Mar 24, 2026
Senior Digital Design Engineer
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Requires a Bachelor’s degree in Electrical Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience.   CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is preferred at time of hire. Candidates must be able to obtain a TS/SCI clearance within a reasonable amount of time from date 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: GDMS has an immediate opening for a Senior Digital Design Engineer. This position provides an opportunity to further advance the cutting-edge...
General Dynamics Mission Systems, Inc
Mar 24, 2026
Senior Systems RF Integration and Test Engineer
General Dynamics Mission Systems, Inc Scottsdale, AZ, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred.   CLEARANCE REQUIREMENTS: Department of Defense TS/SCI security clearance is preferred at time of hire. Candidates must be able to obtain a TS/SCI clearance within a reasonable amount of time from date 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: As a Systems Integration and Test Engineer for the General Dynamics Space Avionics and Payloads team, you’ll be a key...
Lockheed Martin
Mar 21, 2026
F-35 Field Support Engineer, F-35 Program-NAS Lemoore, Level 4
Lockheed Martin Lemoore, CA, USA
Description: Join the Lockheed Martin Aeronautics company as an Aircraft Field Service Engineer (FSE) on our Aeronautics Field Sustainment (AFS) team! Our team is responsible for supporting the F-35 Program at our Naval Air Station (NAS) Lemoore, California location. What You Will Be Doing As a Nose to Tail (NTT) FSE, the preferred candidate will be a subject Matter Expert (SME) in Avionics/Mission Systems (MS), APG/Vehicle Systems (VS) or Supportable Low Observable (SLO)/Structures. While also being an emerging authority in the other two disciplines that they are not a SME in. The NTT FSE will possess the skill set to accomplish advanced troubleshooting and analysis of MS, VS, or SLO. The candidate will act as part of the Lockheed Martin Aeronautics Field Sustainment (AFS) technical interface to the on-site Customer (both Operations and Maintenance) in resolving issues arising from maintenance and modification activities for all matters dealing with the F-35 aircraft. NOTE:...
Lockheed Martin
Mar 21, 2026
F-35 Aircraft Field Service Engineer-NAS Lemoore, Level 2
Lockheed Martin Lemoore, CA, USA
Description: Join the Lockheed Martin Aeronautics company as an Aircraft Field Service Engineer (FSE) on our Aeronautics Field Sustainment (AFS) team! Our team is responsible for supporting the F-35 Program at our Naval Air Station (NAS) Lemoore, California location. What You Will Be Doing As a Nose to Tail (NTT) FSE, the preferred candidate will be a subject Matter Expert (SME) in Avionics/Mission Systems (MS). It is desired the individual also be an emerging authority in APG/Vehicle Systems (VS) or Supportable Low Observable (SLO)/Structures, with the skill set to accomplish troubleshooting and analysis of MS, VS, or SLO. The candidate will act as part of the Lockheed Martin Aeronautics Field Sustainment Team's technical interface to the on-site Customer (both Operations and Maintenance) in resolving issues arising from maintenance and modification activities for all matters dealing with the F-35 aircraft. Must be a United States citizen. Must be able to obtain F-35...
Lockheed Martin
Mar 20, 2026
Lead Electrical Power Engineer (Lead MBR Eng. Staff)
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 Successful can will: The Level 4 Power Systems Engineer is a senior technical contributor...
General Dynamics Mission Systems, Inc
Mar 18, 2026
Advanced Systems Engineer
General Dynamics Mission Systems, Inc Manassas, VA, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 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 Key Responsibilities: Provide senior technical expertise and guidance for systems engineering activities across payload systems programs Lead requirements management, architecture development, and technical solutions that balance customer needs with program...
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...
General Dynamics Mission Systems, Inc
Mar 17, 2026
Integrated Product Team (IPT) Lead
General Dynamics Mission Systems, Inc Manassas, VA, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 years of job-related experience. Agile experience preferred.  Must have Integrated Product Team (IPT) and product development experience with hardware.   CLEARANCE REQUIREMENTS: Department of Defense Secret security clearance is required within a reasonable period of time. 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 Seeking a  Mid-to-Senior Level Engineer with 5+ years of technical experience  to become an Integrated Product Team (IPT) Lead dedicated to the development of...
General Dynamics Mission Systems, Inc
Mar 12, 2026
Senior Systems Engineer - Facilities Integration
General Dynamics Mission Systems, Inc Pittsfield, MA, USA
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 5+ years of job-related experience, or a Master's degree plus 3 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: As a systems engineer for Strategic Weapons Control portfolio, you’ll serve as an integral member of a cross functional team responsible for design, development, construction, testing and formal sell-off activities of a tactical-grade...
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