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150 software engineer senior jobs found

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Lockheed Martin
Apr 09, 2026
Software Engineer - Senior Level
Lockheed Martin MD
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...
Lockheed Martin
May 29, 2026
UI / Mission Planning Software Engineer, Senior / C++ - Orlando, FL
Lockheed Martin Orlando, FL
Description: You will be a Senior Software Engineer on our team at Lockheed Martin. 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. What You Will Be Doing The role will require and focus on building...
Lockheed Martin
Jun 19, 2026
Software Engineer Senior - Secret Clearence
Lockheed Martin Colorado Springs, CO
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 We are seeking a early career Software Engineer to join our team. The successful candidate will be responsible for developing and maintaining scalable DevOps solutions and CI/CD pipelines that support efficient software delivery. The engineer collaborates with cross-functional teams to enhance automation, reliability, and system performance. Key...
Lockheed Martin
Aug 18, 2026
Software Engineer Senior Staff
Lockheed Martin CO
Standard Job 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 Lockheed Martin Next Generation Interceptor (NGI) team is...
Lockheed Martin
Aug 18, 2026
Software Engineer Senior - Clearance Required
Lockheed Martin AL
Standard Job Description Who We Are At Lockheed Martin, we believe that by applying the highest standards of business ethics and forward-thinking, everything is within our reach – and yours as a Lockheed Martin employee. We value your unique skills and expertise, and we aim to give back continuously by offering a wide variety of benefits and amenities to help our employees live flexible, balanced, and fulfilling lives at, and outside of, work. What We’re Doing Our Team, the Command and Control, Battle Management and Communications (C2BMC) Regional team, is constantly engineering, developing and integrating new capabilities for the U.S. Missile Defense System. protecting both the United States and its allies. This large, fast paced team, is composed of many small agile teams working together dynamic environment with a common mission to develop and deploy leading-edge missile defense technologies. The Work The C2BMC-Regional Application Agile Release Train is seeking a...
Lockheed Martin
Aug 18, 2026
Software Engineer Senior - Embedded
Lockheed Martin TX
Standard Job Description Manages the design, development, operation, and maintenance of software and firmware components and computing systems software to be applied to and integrated with engineering, scientific, and manufacturing requirements. Responsible for coordinating subordinate employee recruitment, selection and training, performance assessment, work assignments, salary, and recognition/disciplinary actions. Oversees the appropriate standards, processes, procedures, and tools throughout the system development life cycle to support the generation of such engineering applications and products such as laboratory simulation systems, airplane flight control and display systems, avionics, mechanical and electrical systems, weapons armament, commercial and military aircraft systems, mobile and ground-based defense systems, space systems, and other systems and applications of this nature. Insures the interface with customers, suppliers, application users, and other...
Lockheed Martin
Aug 18, 2026
Cyber Software Engineer Senior
Lockheed Martin PA
Standard Job Description • Bachelor’s degree in Cybersecurity, Systems Engineering, Computer Science, Information Technology, or related STEM discipline; equivalent experience may be considered. • Minimum 5+ years of experience in cybersecurity, systems engineering, information assurance or relevant experience • Experience securing Linux and/or Windows operating systems in enterprise or mission environments. • Experience with Automation tools specifically Ansible and familiarity with deployment automation • Experience with vulnerability scanning and remediation tools. • Experience with scripting languages and automation tools • Ability to obtain and maintain a DoD Secret clearance (or higher, as required). Basic Qualifications What We're Doing At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical...
Lockheed Martin
Jul 14, 2026
Software Engineer Senior - Clearance Required
Lockheed Martin Huntsville, AL
Description: Who We Are At Lockheed Martin, we believe that by applying the highest standards of business ethics and forward-thinking, everything is within our reach – and yours as a Lockheed Martin employee. We value your unique skills and expertise, and we aim to give back continuously by offering a wide variety of benefits and amenities to help our employees live flexible, balanced, and fulfilling lives at, and outside of, work. What We’re Doing Our Team, the Command and Control, Battle Management and Communications (C2BMC) Regional team, is constantly engineering, developing and integrating new capabilities for the U.S. Missile Defense System. protecting both the United States and its allies. This large, fast paced team, is composed of many small agile teams working together dynamic environment with a common mission to develop and deploy leading-edge missile defense technologies. The Work The C2BMC-Regional Application Agile Release Train is seeking a software engineer that...
Lockheed Martin
Jul 14, 2026
Software Engineer Senior - Clearance Required
Lockheed Martin Huntsville, AL
Description: Who We Are At Lockheed Martin, we believe that by applying the highest standards of business ethics and forward-thinking, everything is within our reach – and yours as a Lockheed Martin employee. We value your unique skills and expertise, and we aim to give back continuously by offering a wide variety of benefits and amenities to help our employees live flexible, balanced, and fulfilling lives at, and outside of, work. What We’re Doing Our Team, the Command and Control, Battle Management and Communications (C2BMC) Regional team, is constantly engineering, developing and integrating new capabilities for the U.S. Missile Defense System. protecting both the United States and its allies. This large, fast paced team, is composed of many small agile teams working together dynamic environment with a common mission to develop and deploy leading-edge missile defense technologies. The Work The C2BMC-Regional Application Agile Release Train is seeking a software engineer that...
Lockheed Martin
Jul 10, 2026
Cyber Software Engineer Senior
Lockheed Martin King of Prussia, PA
Description: What We're Doing At Lockheed Martin Rotary and Mission Systems, we are shaping the future of defense and security through innovation, integrity, and visionary thinking. Our teams apply the highest standards of business ethics and technical expertise to design solutions that safeguard our nation and allies. Every day, we push boundaries to ensure mission success—and we invite you to be part of this critical work. Key Responsibilities • Design and implement secure system architectures for enterprise and mission-critical environments. • Apply cybersecurity engineering principles across the full system lifecycle, including requirements, design, implementation, verification, deployment, and sustainment. • Support Risk Management Framework (RMF) activities including control implementation, assessment, evidence collection, and ATO accreditation and sustainment. • Perform security hardening of operating systems, applications, databases, and network devices in...
SAIC
Aug 19, 2026
Senior Software Engineer
SAIC MD
Description SAIC is seeking an experienced Software Engineer to support a mission-critical modernization program delivering a modular, adaptable software suite of essential capabilities across multiple warfighting functions. In this role, you will serve as a core technical contributor responsible for designing, developing, testing, and delivering high-performance software solutions that meet complex operational requirements across a modern, open-architecture platform spanning enterprise cloud and tactical edge environments. This position operates across cloud and tactical edge environments, supporting software design, development, and validation across the full software development lifecycle - from initial architecture through fielding - in both garrison and deployed settings, including Denied, Degraded, Intermittent, and Low Bandwidth (DDIL) environments. The work is to be performed at the customer site at Aberdeen Proving Ground (APG), MD. This role is contingent upon...
LMI
Aug 07, 2026
Senior Data Engineer/Software Developer - Clearance
LMI Newport News, VA
Overview The Senior Data Engineer/Software Developer is a full-time position that will lead the technical implementation for of one of our clients Lifecycle Management Systems. Position is responsible for the end-to-end development of the LMS ecosystem directly working with military stakeholders, logistics experts, and government engineers to ingest complex data streams, build a dynamic operational ontology, and construct role-specific user interfaces This role requires strong software development experience, analytical reasoning and quantitative skills, the ability to work collaboratively with senior and mid-level developers and subject matter experts, and the capacity to present findings clearly to senior DoD leaders and stakeholders.   Position is fully in-person at client site located on Langley Air Force Base. VA.   LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed....
SAIC
Jul 13, 2026
Senior Software Engineer
SAIC CA
Description SAIC is seeking an experienced Software Engineer , to serve as a subject matter expert (SME) in developing, deploying, and sustaining National Security Space systems. In this critical role, you will work directly with government, technical, and industry stakeholders to design, integrate, configure, and optimize data-driven software solutions that enable mission execution across complex operational environments. This position, based in El Segundo, CA, supports the Horizon contract within the Space C2 Program Management Office and requires close collaboration with program stakeholders to meet mission-critical objectives. As part of this role, you will work closely with the Space Systems Command's (SSC) Battle Management Command, Control, Communications & Intelligence (BMC3I) Program Office. Your primary responsibilities will include contributing to the software development, system architecture, and the expansion of the Space C2 program, with a strong emphasis...
Lockheed Martin
Jul 02, 2026
Senior Integration Software Engineer - Clearance Required - HYBRID
Lockheed Martin 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 payment! code-extrefer Senior Integration Software Engineer - Clearance Required WHAT WE'RE DOING • Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity. • As a Senior Integration Software Engineer, you'll be empowered to create "new realities" and pioneer solutions that break boundaries. • Benefit from the support of a global technology leader that values innovative thinking and provides the resources to turn ideas into reality. • Build on our proud legacy of achievement and contribute to shaping the future of aerospace, defense, and security solutions. THE WORK TKO provides systems engineering, software development, data science and cloud development and engineering services to the Cyber Infrastructure Solutions...
Lockheed Martin
Jul 02, 2026
Senior Power BI Software Engineer - Clearance Required
Lockheed Martin 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 payment! code-extrefer Senior Power BI Software Engineer - Clearance Required WHAT WE'RE DOING • Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity. • As a Senior Power BI Software Engineer, you'll be empowered to create "new realities" and pioneer solutions that break boundaries. • Benefit from the support of a global technology leader that values innovative thinking and provides the resources to turn ideas into reality. • Build on our proud legacy of achievement and contribute to shaping the future of aerospace, defense, and security solutions. THE WORK TKO provides systems engineering, software development, data science and cloud development and engineering services to the Cyber Infrastructure Solutions...
General Dynamics Mission Systems, Inc
Jun 16, 2026
Senior Software Engineer
General Dynamics Mission Systems, Inc Bloomington, MN
Basic Qualifications Bachelor's degree in Software Engineering, or related Science, Technology, Engineering or Mathematics field, plus a minimum of 8 years of relevant experience; or Master's degree, plus 6 years relevant experience.   CLEARANCE REQUIREMENTS: Ability to obtain a 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 senior software engineer, you’ll be a member of a cross functional team responsible for developing full-stack embedded software with Realtime Operating Systems using agile methodologies that complies with customer requirements.   We encourage you to apply...
General Dynamics Mission Systems, Inc
Jun 12, 2026
Senior Software Engineer
General Dynamics Mission Systems, Inc Bloomington, MN
Basic Qualifications Bachelor's degree in Software Engineering, or related Science, Technology, Engineering or Mathematics field, plus a minimum of 8 years of relevant experience; or Master's degree, plus 6 years relevant experience.   CLEARANCE REQUIREMENTS: Ability to obtain a 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 Sr Advanced Software Engineer for Airborne Systems, you’ll be a member of a cross functional team responsible for airborne computers that process and display mission data in the cockpit, to crypto products for identifying friendly aircraft, and weapon control...
Lockheed Martin
Jun 02, 2026
Senior Software Engineer - Level 3 (TS/SCI with Poly)
Lockheed Martin King of Prussia, PA
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're seeking a talented and motivated Senior Software Engineer to join our fast-paced...
Lockheed Martin
May 27, 2026
Senior Full Stack Java Software Engineer - Clearance Required
Lockheed Martin 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 payment! code-extrefer Senior Full Stack Java Software Engineer - Clearance Required WHAT WE'RE DOING • Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity. • As a Senior Full Stack Software Engineer, you'll be empowered to create "new realities" and pioneer solutions that break boundaries. • Benefit from the support of a global technology leader that values innovative thinking and provides the resources to turn ideas into reality. • Build on our proud legacy of achievement and contribute to shaping the future of aerospace, defense, and security solutions. THE WORK TKO provides systems engineering, software development, data science and cloud development and engineering services to the Cyber Infrastructure...
General Dynamics Mission Systems, Inc
May 11, 2026
Senior Advanced Software Engineer
General Dynamics Mission Systems, Inc Scottsdale, AZ
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering 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   TS/SCI security clearance with Full Scope Polygraph  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 Network Engineer for Satellite Ground Systems, you’ll be a member of a cross functional team.    We encourage you to apply if you have any of these preferred skills or experiences:...
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