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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 sustainably. 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.

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• Leidos’ Defense
• Sensor Research and Analysis Division is seeking RF Seeker Engineers of different career levels 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 algorithm development efforts of the division with a focus on RF seeker signal processing capabilities and concepts of operations. 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 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 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. To explore and learn more, click here!

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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 Engineering from an ABET-accredited institution plus 2- 8 years of experience in one or more listed experience areas, or a relevant MS degree in engineering plus 2-6 years of experience in one or more listed experience areas.

• Candidate 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.

• Candidate 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.

• 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.

• Good organizational skills, attention to detail, and a strong technical background.

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

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

April 3, 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.

Pay Range:

Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.