UNKNOWN

FEED

The Principal Software Engineer serves as a senior technical authority, applying extensive experience and technical judgment to complex software development efforts while ensuring software solutions meet established program cost, schedule, and technical constraints. This position requires the highest level of technical mastery within the Software Engineering functional area, combined with advanced business knowledge and the leadership capability to guide business or functional teams without a formal management role.

Qualis Corp

Principal Software Engineer

Apply computer science, engineering, and mathematical analysis concepts and principles in the development of software for target applications, including scenario execution, coordinate transformations, state propagation, and data capture and storage. The Software Engineer applies proficient knowledge of software engineering, computer science, engineering, and mathematical analysis concepts and principles to the development of software for target applications.

Software Engineer

Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide.

YEAR

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Leidos Holdings Inc

Traveling Software/ Radar Engineer

Active and existing security clearance required on day 1 At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. Additionally, you will be responsible for managing costs, schedules, and execution activities, including Estimate at Completion (EAC) reviews, proposal costing and leadership reviews, staffing projections, and monthly metrics tracking.

Senior Principal Software Engineer - Integrated Product Team Lead (Onsite)

Your scope will span performing predictive reliability analysis and FMEAs, developing and executing qualification and production test plans, leading root-cause failure investigations from both the factory floor and the field, and closing the loop to drive continuous design and process improvements. Develop and execute comprehensive Qualification and Validation Test plans (including environmental, life/limit, and accelerated testing) to ensure appropriate requirements coverage and de-risking for production readiness; partner with Test Engineering to fixture and instrument test campaigns.

ANDURIL INDUSTRIES

Staff Reliability Engineer

ea_via_bold

Develop and implement technical efforts to design, build, and deploy applications at the direction of lead architects, including large-scale data processing, computationally intensive statistical modeling, and advanced analytics. Founded in 2006, our extensive technical capabilities and expertise support federal and state government agencies with over 100 cleared technical experts specializing in mission solution areas of Digital, AI & Analytics, Cyber, and Engineering.

Full Visibility

Jr. Software Engineer

Mid -Level Software Engineer

Senior Software Engineer

HOUR

Bachelor’s degree in Software Engineering, Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, Mathematics, or an equivalent technical degree with an overall GPA of 3.0 or higher. Assist with the design and implementation of full-stack software architecture and design patterns for missile system applications, including guidance, navigation, control, telemetry, and mission planning.

PEAK Technical Services Inc.

Software Engineer III

jobdiva

FULL_TIME

OTHER

You’ll design, develop, test, and integrate software for sUAS systems and sensors, supporting the full development lifecycle from initial design through integration, flight testing, and deployment. As COLSA continues to expand our uncrewed aerial systems (UAS) capabilities, we’re seeking an experienced Embedded Software Engineer to join our growing team in Madison, Alabama.

COLSA Corporation

Senior Embedded Software Engineer - UAS

silkroad ATS feed

Bachelor’s degree in Software Engineering, Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, Mathematics, or equivalent technical degree. Located in Huntsville, Alabama, a city known for its rich history in space exploration and growing technology sector, offering a dynamic environment for professionals in the defense and engineering industries.

Senior Software Test Engineer

Candidate must possess at least a bachelor's degree in software engineering, Computer Science, Computer Engineering, Electrical Engineering, Aerospace Engineering, Mathematics, or equivalent technical degree with an overall GPA of 3.0 or higher. Relevant technical experience must include developing, integrating, testing, or troubleshooting embedded software or embedded-adjacent applications that interface with, operate, monitor, support, simulate, control, or communicate with embedded systems.

Responsible for performing in-depth analysis and technical support of systems software products, including complex problem resolution, design, development, testing, operational integration, and user support. IERUS develops value for our defense and commercial customers through accelerations of the technology life cycle: identifying, creating, transitioning, and producing technologies with integrity of purpose and product.

IERUS Technologies, Inc.

Software Engineer (Must be a US Citizen)

JobScore

With projects ranging from tactical decision aids to cloud / GPU based large scale numerical solvers, IERUS software engineers perform both real time and off-line development of complete software packages and systems as well as software components for integration with some of the DoD’s most advanced weapon systems. IERUS develops value for our defense and commercial customers through accelerations of the technology life cycle: identifying, creating, transitioning, and producing technologies with integrity of purpose and product.

Software Engineer (Security Clearance Required)

Apply computer science, engineering, and mathematical analysis concepts and principles to software development, including scenario execution, coordinate transformations, state propagation, and storage of scenario and hardware data. The Lead Software Engineer applies comprehensive knowledge of software engineering, computer science, engineering, and mathematical analysis concepts and principles to the development of software for target applications.

Lead Software Engineer

You will work in close coordination with internal engineering, quality, supply chain and manufacturing departments as well as directly with suppliers to execute effective, creative and smart supply chain strategies to achieve production goals. To ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind: No Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process.

Staff Supplier Industrialization Engineer

For candidates, that means a rare opportunity: the innovation and mission focus of an engineering services company paired with the hands-on impact of building and delivering real solutions that benefit the Warfighter, all inside an employee-owned company where your contributions directly shape both the mission and your ownership stake in the business. i3 team members operate at the leading edge of national defense across a broad range of technical disciplines, from systems and software engineering to modeling, simulation, and training solutions to cybersecurity, digital engineering, and enterprise IT.

Integration Innovation, Inc. (i3)

Mid-Level Software Engineer - Web

[AW]-iCims

Bachelor of Science in Computer Science or Software Engineering or equivalent degree from an ABET-accredited institution plus 2-4 years of demonstrated performance in the design, development, and testing of real-time software applications and simulations or Masters in Computer Science or Software Engineering or equivalent degree from an ABET-accredited institution with less than 2 years of demonstrated performance in the design, development, and testing of real-time software applications and simulations. July 8, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

Software Test Engineers

For candidates, that means a rare opportunity: the innovation and mission focus of an engineering services company paired with the hands-on impact of building and delivering real solutions that benefit the Warfighter, all inside an employee-owned company where your contributions directly shape both the mission and your ownership stake in the business. Overview: The Tactical Software and Autonomy Solutions (TSAS) team at i3 supports DoD customers in developing cutting-edge autonomy software architectures to distribute autonomous control across a diverse assortment of uncrewed air, ground, surface, and subsurface platforms.

Jobs in Alton, IL

Principal Software Engineer Qualis Corp

Software Engineer Qualis Corp

Traveling Software/ Radar Engineer Leidos Holdings Inc

Senior Principal Software Engineer - Integrated Product Team Lead (Onsite) RTX

Staff Reliability Engineer ANDURIL INDUSTRIES

Jr. Software Engineer Full Visibility

Mid -Level Software Engineer Full Visibility

Senior Software Engineer Full Visibility

Software Engineer III PEAK Technical Services Inc.

Senior Embedded Software Engineer - UAS COLSA Corporation

Senior Software Test Engineer PEAK Technical Services Inc.

Senior Software Engineer Leidos Holdings Inc

Software Engineer (Must be a US Citizen) IERUS Technologies, Inc.

Software Engineer (Security Clearance Required) IERUS Technologies, Inc.

Lead Software Engineer Qualis Corp

Staff Supplier Industrialization Engineer ANDURIL INDUSTRIES

Mid-Level Software Engineer - Web Integration Innovation, Inc. (i3)

Senior Software Engineer Integration Innovation, Inc. (i3)

Software Test Engineers Leidos

Senior Level Full-Stack Software Engineer Integration Innovation, Inc. (i3)

Similar Job Searches

Stand out to leading employers.