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268 software test engineer jobs found

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LMI
May 21, 2026
Senior Software Test Engineer - TS Clearance Required
LMI Colorado Springs, CO
Overview LMI is actively seeking a skilled, experienced Senior Software Test Engineer to join LMI’s Space Market modeling and simulation (M&S) development team in Colorado Springs, CO. This role involves working directly with USSF and US Government customers, as well as analytical partners, to translate wargame, exercise, training, and analytic needs into responsive, high-performance software applications within LMI’s Modeling, Simulation, Prototyping, Wargaming, & Analysis platform, RAPTR ® .   The ideal candidate is adept at applying systems engineering principles in modern software environments, with strong understanding of software integration and testing, and familiarity with DevSecOps pipelines, CI/CD practices, and cloud-native architectures. Candidates should be comfortable working across disciplines to integrate and test modeling and simulation software in secure environments (both on-prem and cloud-based), collaborating closely with...
Lockheed Martin
Apr 15, 2026
JASSM Senior Software Test Engineer / Embedded / C++ / Orlando, FL
Lockheed Martin Orlando, FL
Description: As one of Lockheed Martin’s first cruise missiles, JASSM has experienced over 20 years of successful partnership with the U.S. Air Force, providing continued significant long-range, precision engagement capabilities for air-to-ground missions. The combat proven and mission effective weapon system is designed to destroy high-value, well-defended, fixed and relocatable targets from significant standoff range, keeping aircrews well out of danger from hostile air defense systems without compromise to lethality or reach. AGM-158 is adding many improvements to the system, including many classified algorithms, enhanced Software (C++) and several new classified subsystems. 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...
Lockheed Martin
Apr 22, 2026
Automated Software Test Engineer - 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 engineer will support a fast-pace, forward looking Software Development environment on the Architecture and Delivery (A&D) product team's Automated Test and Verification team, with tasking directed at Continuous Integration and Continuous Deliver (CI/CD). Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to advancing scientific discovery and harnessing innovation to make the world a safer place. Our RMS business in Huntsville, AL is a hub of talented engineers,...
Lockheed Martin
Apr 22, 2026
Sr Automated Software Test Engineer - 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 engineer will support a fast-pace, forward looking Software Development environment on the Architecture and Delivery (A&D) product team's Automated Test and Verification team, with tasking directed at Continuous Integration and Continuous Deliver (CI/CD). Who We Are Lockheed Martin is a global aerospace, defense, and security company dedicated to advancing scientific discovery and harnessing innovation to make the world a safer place. Our RMS business in Huntsville, AL is a hub of talented engineers,...
General Dynamics Mission Systems, Inc
May 24, 2026
Test Engineer (cleared)
General Dynamics Mission Systems, Inc Dedham, MA
Basic Qualifications Requires a Bachelor’s degree in Engineering, or a related Science, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience.   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 General Dynamics Mission Systems is actively seeking a Test Engineer for our Secure Network and Voice Product Development Team. This position is critical for advancing our automated testing capabilities, requiring collaboration within an agile team to convert operational concepts into practical designs and...
General Dynamics Mission Systems, Inc
May 24, 2026
26-139 CI/CD Engineer UI
General Dynamics Mission Systems, Inc Colorado Springs, CO
Basic Qualifications Requires a Bachelor’s or Technology degree in Engineering or a related specialized area/field, or equivalent (4 years job-related experience). Requires an additional 5+ years of job-related experience, or a Master's degree with 3+ years of job-related experience.   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 Job Title: CI/CD Engineer – Tier 1 Job Overview We are seeking a skilled CI/CD Engineer to join the Regional Applications Agile Release Train (RA ART) of the Missile Defense National Team for Command and Control, Battle Management, and Communications (C2BMC...
General Dynamics Mission Systems, Inc
May 24, 2026
Embedded Software Engineer (cleared)
General Dynamics Mission Systems, Inc Dedham, MA
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months 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 Make the world’s most advanced Cybersecurity and Encryption products even smarter   As an Embedded Software Engineer, working with custom Hardware built in-house, for our Cyber group,   you’ll be a member of a cross functional team responsible for developing...
General Dynamics Mission Systems, Inc
May 24, 2026
Embedded Software Engineer (cleared)
General Dynamics Mission Systems, Inc Taunton, MA
Basic Qualifications Requires a Bachelor’s degree in Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months 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 Make the world’s most advanced Cybersecurity and Encryption products even smarter   As an Embedded Software Engineer, working with custom Hardware built in-house, for our Cyber group,   you’ll be a member of a cross functional team responsible for developing...
General Dynamics Mission Systems, Inc
May 24, 2026
Test Engineer (cleared)
General Dynamics Mission Systems, Inc Dedham, MA
Basic Qualifications Requires a Bachelor’s degree in Engineering, or a related Science, Technology or Mathematics field. Also requires 8+ years of job-related experience, or a Master's degree plus 6 years of job-related experience.     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 General Dynamics Mission Systems is actively seeking a Test Engineer for our Secure Network and Voice Product Development Team. This position is critical for advancing our automated testing capabilities, requiring collaboration within an agile team to convert operational concepts into practical designs and...
General Dynamics Mission Systems, Inc
May 24, 2026
Software Engineer (C++, Linux, bash scripting) - Active Secret clearance
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Bachelor's degree in Software Engineering, or related Science, Technology, Engineering or Mathematics field, plus a minimum of 2 years of relevant experience; or Master's degree, plus 6 months relevant experience.   CLEARANCE REQUIREMENTS:   Department of Defense active 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. Candidate must be local to the area and able to work onsite.  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...
General Dynamics Mission Systems, Inc
May 24, 2026
Software Integration Engineer – Submarine Combat Systems
General Dynamics Mission Systems, Inc Manassas, VA
Basic Qualifications Requires a Bachelor’s degree in Computer Science/Computer Engineering/ Software Engineering, or a related Science, Engineering, Technology or Mathematics field. Also requires 2+ years of job-related experience, or a Master's degree and 6 months of job-related experience.  Must have Kubernetes or Linux.   CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is obtainable within a reasonable amount of time after 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. Candidate must local to the area and able to work onsite.  Responsibilities for this Position Integration Engineer – Submarine Combat Systems Seeking an Integration Engineer to support the Common Infrastructure Services...
General Dynamics Mission Systems, Inc
May 24, 2026
Systems Engineer – Entry Level
General Dynamics Mission Systems, Inc Pittsfield, MA
Basic Qualifications Bachelor's degree in Systems Engineering, or a related Science, Engineering or Mathematics field.   CLEARANCE REQUIREMENTS: : Department of Defense Secret security clearance is obtainable within a reasonable amount of time after 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, you’ll be a member of a cross functional team responsible for design modernization and deployment of submarine-based weapon control systems.   We encourage you to apply if you have any of these preferred skills or experiences: High degree of knowledge working with Linux and virtual machines...
Lockheed Martin
May 23, 2026
Systems Engineer Junior
Lockheed Martin Huntsville, AL
Description: Lockheed Martin "Ahead of Ready" 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...
Lockheed Martin
May 23, 2026
Systems Engineer - Senior
Lockheed Martin Huntsville, AL
Description: Lockheed Martin "Ahead of Ready" 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...
Lockheed Martin
May 23, 2026
Systems Engineer - Senior
Lockheed Martin Huntsville, AL
Description: Lockheed Martin "Ahead of Ready" 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...
Lockheed Martin
May 23, 2026
Systems Engineer, Mid-Career
Lockheed Martin Huntsville, AL
Description: Lockheed Martin "Ahead of Ready" 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...
Lockheed Martin
May 23, 2026
Software Engineer (Level II)
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...
Lockheed Martin
May 23, 2026
Software Engineer Sr
Lockheed Martin Herndon, VA
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. And we’re reimagining how space can connect us, ensuring security and prosperity. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. THE WORK Lockheed Martin is seeking a talented level 3 Software Engineer with an active TS/SCI...
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...
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