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214 senior systems engineer level 3 jobs found

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Lockheed Martin
Apr 29, 2026
Systems Engineer Senior - Level 3
Lockheed Martin Fort Worth, TX
Description: You will be the Systems Engineer Senior for the Common Stim team which is responsible for managing multi‑spectral lab stimulator procurement activities across Lines of Business used in the development of real‑time simulation systems. What You Will Be Doing As the Systems Engineer Senior you will be responsible for serving as the technical bridge between simulation lab teams and external hardware suppliers, ensuring stimulator systems meet program requirements. Your responsibilities will include: Procure Electronic Warfare, RADAR, Communication, Navigation & Interrogation, and EO/IR stimulator subsystems. Develop subsystem requirements and translate laboratory customer needs into clear specifications for suppliers. Manage requirements change implementation between internal engineering teams and external product suppliers. Support system integration and verification of new capabilities in hardware‑in‑the‑loop (HITL) simulation...
Lockheed Martin
Apr 14, 2026
Systems Engineer Senior - Level 3
Lockheed Martin Fort Worth, TX
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 for the ADP Life Cycle Management (LCM) team, 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...
Lockheed Martin
Apr 09, 2026
Systems Engineer Senior - Level 3
Lockheed Martin Fort Worth, TX
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 for the ADP Life Cycle Management (LCM) team, 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...
General Dynamics Mission Systems, Inc
May 19, 2026
Sr Software Engineer - C++/Java - Active Secret clearance
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Software 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 At General Dynamics Mission Systems, we build advanced technologies that keep our nation safe and our warfighters prepared. Our engineers tackle some of the most complex and consequential challenges in defense, delivering solutions that redefine innovation and make a...
Lockheed Martin
May 16, 2026
RTS DevSecOps Engineer
Lockheed Martin Boulder, CO
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 level 3 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...
Lockheed Martin
May 15, 2026
Physics Modeling Systems Engineer, Sr
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 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
May 15, 2026
Guidance, Navigation & Control Engineer III (Senior)
Lockheed Martin Sunnyvale, CA
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 Role : This position will support an...
Lockheed Martin
May 15, 2026
Computing Systems/Software Senior Engineer
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 Rotary and Mission Systems (RMS) in Moorestown, NJ is seeking a full-time Computing Systems/Software Senior Engineer for their Infrastructure, Communications, & Network Engineering team to support multiple Mission Integrated Command & Control (MIC2) Lines of Business (LOB) programs. This role will involve a combination of software development and systems engineering using an Agile, Development, Security, and Operations (DevSecOps) approach. Tasking can include: • Software Design/Development/Integration/Test • Systems Design/Development/Integration/Test • Deriving of program requirements • Integration, test and requirement verification • Configuring...
Lockheed Martin
May 15, 2026
Computing Systems/Software Engineer
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 Rotary and Mission Systems (RMS) in Moorestown, NJ is seeking a full-time Computing Systems/Software Senior Engineer for their Infrastructure, Communications, & Network Engineering team to support multiple Mission Integrated Command & Control (MIC2) Lines of Business (LOB) programs. This role will involve a combination of software development and systems engineering using an Agile, Development, Security, and Operations (DevSecOps) approach. Tasking can include: • Software Design/Development/Integration/Test • Systems Design/Development/Integration/Test • Deriving of program requirements • Integration, test and requirement verification • Configuring...
Lockheed Martin
May 15, 2026
Systems Engineer - Level 2
Lockheed Martin Marietta, GA
Description: You will be the Systems Engineer - Level 2 for the Advanced Development Program (ADP) which is responsible for pioneering cutting‑edge aerospace solutions. What You Will Be Doing As the Systems Engineer - Level 2 you will be responsible for driving complex system integrations within the historic Skunk Works environment. You will operate in a fast‑paced, ever‑changing setting while collaborating across multidisciplinary teams. Your responsibilities will include: - Managing multiple, widely varying assignments concurrently while maintaining quality and schedule. - Working independently and as a proactive team player, stepping in to support teammates whenever needed. - Engaging professionally with senior management, presenting technical insights and status updates. - Meeting strict deadlines and executing tasks to precise timelines. - Contributing to the development of advanced aircraft concepts that uphold a 75‑year tradition of innovation. What’s In It For You...
Lockheed Martin
May 15, 2026
Systems Engineer Sr Stf - RF/EW Req & Arch
Lockheed Martin Moorestown, NJ
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. What We’re Doing As part of our 21st Century Security vision, Lockheed Martin is investing in advancing multi-function sensing capabilities. Our Converged Sensors team is accelerating multi-function aperture & multi-function processing technologies through research, development, & demonstrations. Who You Are Our team is seeking a driven Systems Engineer to help lead the cross-program development & implementation of advanced digital sensor architectures in open architecture platforms with challenging size, weight, power and cost (SWaP-C)...
U. S. National Security Agency
May 13, 2026
Industrial Control System Specialist - Entry to Experienced Level (Maryland)
U. S. National Security Agency Fort Meade, MD
Responsibilities: The National Security Agency (NSA) currently has opportunities for highly motivated Industrial Control System (ICS) Specialists/Engineers to provide expertise in the design, construction, commissioning, and operation of new and renovated electrical and mechanical infrastructure. This position has two areas of focus, one within Design and Engineering (D&E) and the other with Operations and Maintenance (O&M). As an ICS Specialist/Engineer within D&E, you will work closely with multidisciplinary teams encompassing project managers, stakeholders, and contractors throughout the entirety of the project life-cycle, including close coordination with O&M. You will also be responsible for the development and review of designs, specifications, technical reports, and cost estimates for power monitoring and control of electrical and mechanical infrastructure, energy management monitoring, and ICS cybersecurity. As an ICS Specialist/Engineer within O&M,...
SAIC
May 13, 2026
Senior Software Engineer
SAIC CA
Description SAIC is looking for a Senior Software Engineer for a position located in San Diego, CA . This position needs to be highly experienced in JavaScript, React, Linux (RHEL), and has a strong background in Web Experience. This role requires you to have an ACTIVE SECRET clearance to star t. *This will be an ON-SITE role with expected travel up to 10% throughout the year.* JOB DUTIES: The candidate shall perform software engineering design and development activities to produce reliable, modular, and secure software components. The work will include development of software on a RHEL OS platform. This will include software development with custom C++ based applications, X windows-based applications, and web-based middleware. Development will consist of application writing and policy for security accreditations. Qualifications REQUIREMENTS : Bachelors and five (5) years or more experience; Masters and three (3) years or more experience; PhD...
Lockheed Martin
May 12, 2026
ASIC & FPGA Design Engineer Sr
Lockheed Martin Orlando, FL
Description: You will be the Senior ASIC & FPGA Design Engineer for the Command Launch Assembly (CLA) FPGA team within Missiles & Fire Control (MFC). Our team delivers the digital heart beat that powers the Next Generation Short Range Interceptor (NGSRI), turning system level performance and safety goals into reliable, production ready FPGA hardware for the United States and allied forces. What You Will Be Doing As the senior ASIC & FPGA designer you will own the full lifecycle of the CLA FPGA—from high level architecture through release ready documentation—while mentoring junior talent and partnering with a broad set of cross functional experts. Your responsibilities will include: • Defining FPGA architecture and drafting design specifications; writing clean RTL in VHDL/Verilog/SystemVerilog that satisfies performance, power, and reliability targets. • Developing synthesis, place and route, and timing closure strategies to guarantee deterministic operation on the...
Lockheed Martin
May 12, 2026
Windows & Linux Systems Administrator Staff
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! 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 System Administrator is a senior level role that blends enterprise system administration (Linux & Windows) with full cycle network engineering, including design, deployment, and...
Lockheed Martin
May 12, 2026
Cyber Integration Engineer Sr - (Represented)
Lockheed Martin Mount Laurel Township, NJ
Description: WHAT WE’RE DOING At Lockheed Martin Rotary and Mission Systems, we are pushing the boundaries of innovation in defense and technology. Our Integrated Warfare Systems & Sensors (IWSS) Line of Business delivers cutting-edge solutions to support national defense. We uphold the highest standards of ethics and visionary thinking to build a safer and more secure world. THE WORK We are seeking a highly skilled and experienced Senior Cyber Software Engineer with a strong background cyber capability development and integration. In this role, you will be an integrated member of an Agile Cyber Product Team, supporting multiple programs within the IWSS organization. Responsibilities will include the full scope of the systems engineering process with a focus in cyber capability development and integration. Tasking will include requirements development and analysis, capability design documentation, product selection, development, integration, regression testing,...
Lockheed Martin
May 12, 2026
Cyber Software Engineer Senior Staff – DSP
Lockheed Martin King of Prussia, PA
Description: You should participate in our External Referral Program. Click here to submit a referral. If your referral is hired, you'll receive a $3000 payment! code-extrefer This position may be eligible for a $25K sign on bonus for external hires! Cyber Software Engineer Senior Staff – DSP 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 SIGNAL SWE / Cyber Software Engineer Senior Staff – DSP is leading multi faceted mission critical...
Lockheed Martin
May 09, 2026
AI/ML Engineer Sr (mid-career)
Lockheed Martin Puerto Rico
Description: The Lockheed Martin Data & AI Enablement – Advanced Solutions team supporting Rotary & Mission Systems (RMS) is responsible for developing strategies and implementing integrated, cross‑functional solutions that transform operations through data‑based decisions that deliver business‑based outcomes. Our AI team is at the forefront of the digital transformation, building artificial‑intelligence and machine‑learning solutions that drive tangible business improvements. The Lockheed Martin Data & AI Enablement – Advanced Solutions team supporting Rotary & Mission Systems (RMS) is responsible for developing strategies and implementing integrated, cross‑functional solutions that transform operations through data‑based decisions that deliver business‑based outcomes. Our AI team is at the forefront of the digital transformation, building artificial‑intelligence and machine‑learning solutions that drive tangible business improvements. A Senior AI/ML Engineer will...
Lockheed Martin
May 09, 2026
AI/ML Engineer Sr (mid-career)
Lockheed Martin Puerto Rico
Description: The Lockheed Martin Data & AI Enablement – Advanced Solutions team supporting Rotary & Mission Systems (RMS) is responsible for developing strategies and implementing integrated, cross‑functional solutions that transform operations through data‑based decisions that deliver business‑based outcomes. Our AI team is at the forefront of the digital transformation, building artificial‑intelligence and machine‑learning solutions that drive tangible business improvements. The Lockheed Martin Data & AI Enablement – Advanced Solutions team supporting Rotary & Mission Systems (RMS) is responsible for developing strategies and implementing integrated, cross‑functional solutions that transform operations through data‑based decisions that deliver business‑based outcomes. Our AI team is at the forefront of the digital transformation, building artificial‑intelligence and machine‑learning solutions that drive tangible business improvements. A Senior AI/ML Engineer will...
Lockheed Martin
May 09, 2026
AI/ML Engineer Sr (mid-career)
Lockheed Martin Puerto Rico
Description: The Lockheed Martin Data & AI Enablement – Advanced Solutions team supporting Rotary & Mission Systems (RMS) is responsible for developing strategies and implementing integrated, cross‑functional solutions that transform operations through data‑based decisions that deliver business‑based outcomes. Our AI team is at the forefront of the digital transformation, building artificial‑intelligence and machine‑learning solutions that drive tangible business improvements. The Lockheed Martin Data & AI Enablement – Advanced Solutions team supporting Rotary & Mission Systems (RMS) is responsible for developing strategies and implementing integrated, cross‑functional solutions that transform operations through data‑based decisions that deliver business‑based outcomes. Our AI team is at the forefront of the digital transformation, building artificial‑intelligence and machine‑learning solutions that drive tangible business improvements. A Senior AI/ML Engineer will...
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