Software Developer

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Your greatest work is ahead! Leidos’ Defense Sensors - Sensor Research and Analysis Division is seeking a Software Developer to join our team. The division performs radar design, hardware builds, algorithm development, software development, HWIL testing and analysis across a variety of both research and development and operational tasks. The candidate selected for this role will primarily support the design, implementation, and optimization of real‑time software powering RF seeker capabilities and signal‑processing pipelines. The selected candidate will maintain a familiarity with the fielded systems our division supports, investigate cutting‑edge RF seeker technologies, and develop studies which educate our customers on seeker technology advancements. These studies will consist of provisional MATLAB modeling, closed‑loop simulation, and validation on radar hardware. The selected candidate will work closely with algorithm development engineers to transition prototype algorithms (such as MATLAB/Python models) into robust, maintainable, high‑performance software architectures (modern C++) targeted for real‑time and embedded environments. You will also participate in closed‑loop simulations, HWIL integration, and system validation on radar hardware. The candidate will present progress and findings of these studies to government and prime contractor stakeholders and will collaborate with the rest of the division on radar development and testing activities. If this sounds like the kind of environment where you can thrive, keep reading! Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. 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. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. Relevant Experience Areas RF Seeker CONOPS – Concepts of operations and decisions to close the kill chain with an RF seeker in various use cases and environments. RF Seeker Mode Logic – Waveform, algorithm, and guidance methods associated with distinct stages of an RF Seeker flight, and transitioning between those stages. Signal Processing – Waveform design, matched filtering, detections processing, clutter rejection, target feature extraction Electronic Warfare – Analysis of radio signal countermeasures and protections against countermeasures Simulation Development – Designing architecture, resource management, interface, and feature models of radar and seeker simulations Modeling & Analysis – Setup, test, analyze, and evaluate radar or communications algorithms in software Software Development – Experience in high performance computing languages such as C++ Calibration – Far‑field and/or near‑field calibration techniques for radar systems Tracking – Design and analysis of Kalman filters, IMMs, detection to track association varieties Radar Resource Management – Scheduling techniques for optimized commands between radar subsystems RF Test Equipment – Experience with RF troubleshooting equipment such as Vector Network Analyzers, oscilloscopes, and signal generators Basic Qualifications Bachelor of Science in Software Engineering or related technical field from an ABET-accredited institution plus 2+ years of experience in one or more listed experience areas, or a relevant MS degree with exposure to one or more listed experience areas. Must have excellent math skills and/or possess and show good fundamentals in one or more of the following: Signals and systems Digital signal processing Tracking algorithms Electromagnetics. Should be able to apply one or more of the above skills to the areas of radar modeling & simulation, antenna array theory, digital signal processing, tracking, algorithm development, and field testing of sensor systems. Experience working with MATLAB, Python, or similar scientific-based programming tools to implement math or scienced based phenomenology related to linear systems, digital signal processing, tracking, or electromagnetics is required. Experience with developing component/subsystem/system acceptance/verification test plans and reports. Strong organizational skills, attention to detail, and a strong technical background. A positive, proactive attitude and enthusiasm for learning, collaborating, and tackling challenging engineering problems. Must be a resident of the North Alabama area or willing to relocate to the Huntsville - North Alabama, AL area. This is NOT a remote or work-from-home position. Must be a US Citizen and possess (and be able to maintain) a Final Secret Clearance or meet the eligibility to obtain (and maintain) a Secret Clearance. Preferred Qualifications Demonstrated proficiency in several of the listed experience areas Highly organized, demonstrating the ability to work independently at times due to fast-paced and highly productive work environment Ability to create design documentation, requirements specifications, and other technical documentation Demonstrated experience in understanding, evaluating, and implementing published scientific literature from sources such as IEEE. Relevant publications in listed experience areas Pay Range Pay Range: Pay Range $69,550.00 - $125,725.00 Pay and Benefits Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here. Commitment and Diversity All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to View email address on click.appcast.io. Original Posting Original Posting: October 27, 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. Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit #J-18808-Ljbffr Leidos