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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 Systems RF Systems Portfolio is seeking a Research Scientist to join a talented team within the RF Systems Portfolio. Candidates in this role will be a part of a diverse team of scientists, engineers, and analysts supporting advanced radar systems research and development in a high-fidelity modeling and simulation environment. Candidates will be expected to set-up, test, analyze, and evaluate radar and weapon system performance using modeling and simulation of air defense systems.

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. To explore and learn more, click here!

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Primary Responsibilities

• Support M&S configuration, testing, and data analysis activities of radar and weapon systems to determine performance capabilities

• Demonstrate strong mathematical, analytical, and problem-solving skills in support of analysis products and presentations

• Work with a team to find solutions to novel, complex, and non-traditional questions

Basic Qualifications

• Bachelor of Science in Electrical Engineering, Math, Physics, or other technical degree from an ABET-accredited institution plus 2+ years of demonstrated performance in M&S activities

• Proficient in programming (Python preferably, MATLAB, etc.)

• Must be a US citizen, possess and able to maintain an active Secret Clearance

• Must be a resident of Huntsville, AL or willing to relocate to the Huntsville, AL area.

Preferred Qualifications

• Possess and able to maintain an active Top-Secret Clearance

• Radar/Air Defense Systems M&S Experience

• Master of Science in Electrical Engineering, Math, Physics, or other technical degree from an ABET-accredited institution

• Experience with large military networks (IBCS, CEC, C2BMC, etc)

• Knowledge of radar algorithms and techniques (search, track, discrimination, etc)

• Experience working in a Linux operating environment

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 $69,550.00 - $125,725.00

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.