UNKNOWN

FEED

You will provide strategic technical direction across multi-functional Integrated Product Teams (IPTs), manage high-level engineering complexities, design robust embedded architectures, and guide engineering teams through entire hardware lifecycles. Master’s degree in, engineering, or related STEM discipline with 10+ years of systems engineering experience; OR a bachelor’s degree in engineering, or similar with 12+ years of relevant systems engineering experience.

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Leidos

Principal Systems Engineer

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i3 is a technically diverse, 100% team member owned business, headquartered in Huntsville, Alabama specializing in missile and aviation systems engineering and logistic services, electronic warfare and electromagnetic effects analysis, UAS system integration and flight operations, full lifecycle C5ISR engineering services, cybersecurity and IT/IA innovative solutions and virtual training, simulation & serious game development and implementation. We have established a broad offering of products and capabilities collectively providing decades of experience supporting the full complement of DoD military services, Missile Defense Agency, National Aeronautics and Space Administration, and a variety of other Government organizations and private industry customers.

Integration Innovation Inc

Senior Level Full Stack Software Engineer

Senior Software Engineer

Principal Electrical Engineer

Mid Level Test Engineer/Analyst

Mid Level Radar Engineer/Analyst

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. Requires an ABET accredited B.S. or equivalent degree in computer engineering, computer science, or electrical engineering with 2+ years of prior experience or Master’s degree in related field.

Associate Test Engineer

In this role, you will partner with the integrated product team (IPT) lead to develop and maintain the development schedule, including creating task networks, ensuring execution progress, updating estimates to complete, and capturing the drivers behind cost and schedule variances. . The ideal candidate will lead cross-functional engineering activities, manage technical baselines, track deliverables, and serve as the integration focal point between Systems, Software, Mechanical, Electrical, Test, and Program Management teams.

Program Engineer

This position focuses on automated testing, development of robust, innovative software test infrastructures and frameworks, integration testing, informal manual testing, formal software qualification testing, fielding and support, and maintenance of software products. September 9, 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.

Senior Aviation Software Test 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. September 1, 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.

RADAR Integration and Test Engineer

You'll lead advanced test and analysis efforts, evaluate communications system and waveform performance, assess communications resilience and signal detectability, and collaborate with multidisciplinary teams and government stakeholders to deliver mission-ready capabilities and help inform future U.S. Army and DoD communications systems. Leidos’ Defense Uncrewed Systems Integration and Test is seeking a motivated and ambitious RF Communications & Signal Processing Engineer to join the Software, Simulation, Systems Engineering and Integration Directorate (S3I) Joint Technology Center – Systems Integration Lab (JSIL) Technology and Certification Center.

Senior RF Communications & Signal Processing & Engineer

September 15, 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. You will act as the primary technical liaison for internal customers and external customers, drive continuous improvement and mentor a multidisciplinary team of engineers to ensure the safety, reliability, and readiness of critical defense assets.

Principal Electronics Manufacturing Test Engineer

This position focuses on automated testing, development of robust, innovative software test infrastructures and frameworks, integration testing, informal manual testing, formal software qualification testing, fielding and support, and maintenance of software products. At least a Bachelor's degree in Software Engineering, Computer Science, Computer Engineering, Electrical Engineering, Aeronautical Engineering, Mathematics, or equivalent technical degree with an overall GPA of 3.0 or higher.

YEAR

Aviation Software Test Engineer

IRecruitee

Design and architect full-stack software solutions for airborne systems, including embedded software architecture, code implementation, unit testing, and integration of distributed software modules across subsystems and networks. Candidate must possess at least a bachelor’s degree in Software Engineering, Computer Science, Computer Engineering, Electrical Engineering, Aeronautical Engineering, Mathematics, or equivalent technical degree with an overall GPA of 3.0 or higher.

Mid-Level Embedded Software Engineer

Senior Network Engineer - Systems Integration

Mid Level Software Engineer Web

Leidos Defense Systems Sector / Manufacturing provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Candidate will be required to have the basic computer skills associated with these assembly tasks (such as retrieving the manufacturing documentation from the system, updating the system as router steps are completed, etc.).

SMTA Process Engineer

Our team solves important problems that make a difference and support our customers in the current and future defense of our nation; primarily in the areas of sensor characterization, modeling, simulation, data analysis, and algorithm development for electro-optical infrared (EO/IR) systems. Leidos' Defense Systems , Threat Modeling andSimulation Portfolio , is seeking a talented lead software developer with the ability and experience to work multiple projects (primarily modeling & simulation efforts) within the Threat Modeling and Simulation Portfolio.

Lead Software Engineer

Leidos' Defense, Uncrewed SystemsIntegration and Test is seeking a motivated and ambitious UAS Systems Integration Engineer to join the Software, Simulation, Systems Engineering and Integration Directorate (S3I) Joint Technology Center – Systems Integration Lab (JSIL) Technology and Certification Center. BS degree in computer science or related technical degree plus 2-4 years of prior relevant experience or MS degree in computer science or related technical degree plus 1-2 years of prior relevant experience.

UAS Systems Integration Engineer

FULL_TIME

Cursor, Windsurf, Claude Code) in real development workflows, both as a user and as the engineer who builds the pipelines and guardrails around them [Must be able to work fluently in an AI-native environment]Exceptional aptitude for building tangible products [Must be able to demonstrate this by a portfolio of shipped systems, open-source contributions, or serious side projects]Strong intellectual curiosity [You will be asked to leave your comfort zone early and often, so we're looking for evidence that you've done this on your own before]Preference for self-directed work [You'll work with our top technical talent, but we're looking for evidence that when given a problem to solve, you know how to identify and execute the means for solving it.]Demonstrated history of effective collaboration [You'll be working with multiple other people as part of a variety of integrated teams and must be capable of both shouldering work yourself and leading projects with little guidance. This implies other things like good communication, planning and coordination, and 'soft' skills.]Other qualifications we hope you bring to the table:Experience supporting simulation, numerical, or other high-performance scientific computing workloads [If you've built the environments and pipelines that let compute-hungry software build, test, and run fast and reproducibly, we want to hear about it!]Experience working in a startup environmentFamiliarity with DoD cybersecurity and authorization processes (e.g.

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