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57 principal software engineer jobs found

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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 23, 2026
Principal Systems Engineer (Radar Integration & Test)
Lockheed Martin Moorestown, NJ
Description: What We’re Doing Here at Lockheed Martin Rotary and Mission Systems (RMS) we take on the most demanding challenges in the world. We seek out innovative ideas and creative solutions to seemingly impossible problems facing our customers in the Sensors, Effectors & Mission Systems (SEMS) organization. We collaborate with the best Radar engineers in the business across the Moorestown, NJ and Syracuse, NY sites to invent solutions where they don’t exist yet. If you’re looking for the challenge of a lifetime on a team of the brightest minds in the world, then Rotary Mission Systems and the Sensor Architectures team is the place for you. If you’re looking for life-long learning and a career where the hard work is the fun part, then you’re in the right place. The Work In your role as a Principal Systems Engineer, you will: • Provide guidance and leadership for program execution across sensor products. • Shape system architectures to strategically drive future...
Lockheed Martin
May 12, 2026
Cyber Software Engineer Senior Staff – DSP
Lockheed Martin Raleigh, NC
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! code-extrefer This position may be eligible for up to $25K sign on bonus for external hires! Cyber Software Engineer Principal - DSP Digital Signal Processing 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. Cyber | Lockheed Martin THE WORK The...
Lockheed Martin
Apr 16, 2026
Cyber Software Engineer Senior Staff – DSP
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! code-extrefer This position may be eligible for up to $25K sign on bonus for external hires! Cyber Software Engineer Principal - DSP Digital Signal Processing 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. Cyber | Lockheed Martin THE WORK The...
General Dynamics Mission Systems, Inc
Mar 27, 2026
Senior Principal Systems Engineer
General Dynamics Mission Systems, Inc MD
Basic Qualifications Requires a Bachelor’s degree in Systems Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 10+ years of job-related experience, or a Master's degree plus 8 years of job-related experience. Agile experience preferred.     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 Systems Engineer, you will work alongside a team of highly talented hardware and software engineers to build new technologies to counter threats of tampering, reverse engineering, and supply chain exploits....
SAIC
Mar 11, 2026
Information System Security Engineer
SAIC VA
Description SAIC is seeking an Information System Security Engineer (ISSE) to provide information security support. This position is in McLean, VA and requires an active TS/SCI clearance with Polygraph . This Customer's office is the force of choice for the development of global infrastructure and delivery of solutions that drive influence operations. If you have specialized skills in information security and tech ops, this is the role for you. Job responsibilities include, but are not limited to: Support the Lifecycle Assessment and Authorization (A&A) process. Develop a Systems Security Plan (SSP). Assist and maintain a formal Information Security Program that includes recommendations on continuous improvement of the processes and architectures. Maintain and make accessible documentation of all operational and business process activities in the form of Standard Operating Procedures (SOPs). Monitor and track projects in the A&A queue....
Lockheed Martin
May 29, 2026
Embedded Senior Software Engineer / Embedded / C++ / Orlando, FL
Lockheed Martin Orlando, FL
Description: This is a multi-hire position for a variety of highly embedded and sensor driven programs. These programs are notable programs such as JASSM, LRASM, EOTS and many more classified programs that are in need of engineers with experience writing drivers, working in hardware abstraction layer architectures and are familiar with microservice style architectures. We want you, if you enjoy writing command and control code for sensors and doing hardware software integration in classified labs. This position is responsible for all phases of the software development lifecycle including requirements analysis, design, code and unit test, and hardware/software integration and verification. The individual will develop embedded software in C++ and embedded operating system in an Agile environment using JIRA, Git and Confluence. The individual will need to apply appropriate standards, processes, procedures and tools throughout the development lifecycle. Lockheed Martin is a...
Lockheed Martin
May 29, 2026
Embedded Senior Staff Software Engineer / Embedded / C++ / Orlando, FL
Lockheed Martin Orlando, FL
Description: This is a multi-hire position for a variety of highly embedded and sensor driven programs. These programs are notable programs such as JASSM, LRASM, EOTS and many more classified programs that are in need of engineers with experience writing drivers, working in hardware abstraction layer architectures and are familiar with microservice style architectures. We want you, if you enjoy writing command and control code for sensors and doing hardware software integration in classified labs. This position is responsible for all phases of the software development lifecycle including requirements analysis, design, code and unit test, and hardware/software integration and verification. The individual will develop embedded software in C++ and embedded operating system in an Agile environment using JIRA, Git and Confluence. The individual will need to apply appropriate standards, processes, procedures and tools throughout the development lifecycle. Lockheed Martin is a...
Lockheed Martin
May 29, 2026
UI / Mission Planning Software Engineer, Staff / C++ - Orlando, FL
Lockheed Martin Orlando, FL
Description: You will be a Staff 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
May 29, 2026
Embedded Staff Software Engineer / Embedded / C++ / Orlando, FL
Lockheed Martin Orlando, FL
Description: This is a multi-hire position for a variety of highly embedded and sensor driven programs. These programs are notable programs such as JASSM, LRASM, EOTS and many more classified programs that are in need of engineers with experience writing drivers, working in hardware abstraction layer architectures and are familiar with microservice style architectures. We want you, if you enjoy writing command and control code for sensors and doing hardware software integration in classified labs. This position is responsible for all phases of the software development lifecycle including requirements analysis, design, code and unit test, and hardware/software integration and verification. The individual will develop embedded software in C++ and embedded operating system in an Agile environment using JIRA, Git and Confluence. The individual will need to apply appropriate standards, processes, procedures and tools throughout the development lifecycle. Lockheed Martin is a...
Lockheed Martin
May 29, 2026
Embedded Software Engineer / Embedded / C++ / Orlando, FL
Lockheed Martin Orlando, FL
Description: This is a multi-hire position for a variety of highly embedded and sensor driven programs. These programs are notable programs such as JASSM, LRASM, EOTS and many more classified programs that are in need of engineers with experience writing drivers, working in hardware abstraction layer architectures and are familiar with microservice style architectures. We want you, if you enjoy writing command and control code for sensors and doing hardware software integration in classified labs. This position is responsible for all phases of the software development lifecycle including requirements analysis, design, code and unit test, and hardware/software integration and verification. The individual will develop embedded software in C++ and embedded operating system in an Agile environment using JIRA, Git and Confluence. The individual will need to apply appropriate standards, processes, procedures and tools throughout the development lifecycle. Lockheed Martin is a...
Lockheed Martin
May 29, 2026
UI / Mission Planning Software Engineer / C++ - Orlando, FL
Lockheed Martin Orlando, FL
Description: You will be a 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
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
May 28, 2026
EOTS Software Engineer - Senior / Embedded / C++ - Orlando, FL
Lockheed Martin Orlando, FL
Description: You will be a Senior Software Engineer on our EOTS team at Lockheed Martin. The Electro-Optical Targeting System (EOTS) is the world’s first sensor that combines forward-looking infrared (FLIR) and infrared search and track (IRST) functionality. 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...
Lockheed Martin
May 28, 2026
Europa Software Engineer / Embedded / C++ - Orlando, FL
Lockheed Martin Orlando, FL
Description: You will be a 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 As a Software Engineer, your responsibilities will...
Lockheed Martin
May 27, 2026
GNC Staff Engineer - Dallas, TX or Orlando, FL
Lockheed Martin Grand Prairie, TX
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. We are seeking an emerging, or experienced, Guidance, Navigation, and Control (GNC) Engineer to join our team in Grand Prairie, TX, or...
Lockheed Martin
May 26, 2026
GNC Performance Staff Engineer - Dallas, TX
Lockheed Martin Grand Prairie, TX
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. We are seeking an emerging, or experienced, Guidance, Navigation, and Control (GNC) Engineer to join our team in Grand Prairie, TX. What You...
Lockheed Martin
May 23, 2026
Software Engineer - Embedded, Dallas, TX - Associate
Lockheed Martin Grand Prairie, TX
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 Software Engineer Asc at MFC, you will join one of the largest networks of software professionals, implementing cutting edge technologies on...
Lockheed Martin
May 23, 2026
1LMX DevSecOps, Senior / C++ - Orlando, FL
Lockheed Martin Orlando, FL
Description: Lockheed Martin’s Software Factory, a leader in DevSecOps-driven software engineering serving the aerospace and defense sectors. The Lockheed Martin Software Factory delivers customized solutions to meet the needs of our diverse customers — from commercial to classified — in order to scale across multiple programs. Embedding (Development, Security and Operations) DevSecOps in every step of our software development keeps our clients at the cutting edge of cybersecurity. Secure coding is a fundamental principle behind our DevOps philosophy to make sure the best cyber security practices are considered at every step of development. We are focused on architecting software for frequent delivery. Modular open systems architecture has been key to our systems for many years, and we are using new technologies such as container orchestration with Kubernetes to drive modularity through containerized microservice architecture all the way into the deployed system. Not only does...
Lockheed Martin
May 23, 2026
Senior Electrical Engineer (Level III) - Top Secret Clearance
Lockheed Martin Littleton, CO
Description: Position details: Location: Littleton, CO Work Schedule: 9x80 Position type: Full-time onsite (this is not a hybrid position) 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...
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