Senior Signatures Modeling Engineer

Do you want to join a high performing team that values integrity, innovation, and collaboration with a company whose mission is to make the world safer, healthier, and more efficient through information technology, engineering, and science? Are you interested in making a difference by applying your signature production skills toward state-of-the-art research and development problems? Leidos currently has an exciting opening for a signatures modeling engineer to work in our Beavercreek office in the greater Dayton, OH area. As a Signatures Modeling Engineer, you will apply your skills and critical thinking to a wide variety of signature modeling programs supporting AFRL, NASIC, LCMC, and other customer agencies. You will run state of the art signature prediction codes, like Xpatch and SENTRi on airborne and ground-based vehicle models to generate highly accurate signature models. You will also create custom signature prediction tools and perform special analyses in support of critical customer mission areas. This job offers a unique ability to collaborate directly with the creators of industry standard tools such as Xpatch as well as others (SENTRi, etc.). We are looking for a qualified candidate to bring technical excellence, leadership, entrepreneurship, and creativity to our programs. You will interact with customers, participate in, and lead technical projects areas, and pursue growth in new areas. This position requires most job duties to be performed onsite due to the sensitive nature of this work and the desire for in-person collaboration, however we offer flexible in-office hours and the ability to perform some job duties remotely.

Primary Responsibilities:

• Model and characterize electromagnetic (EM) phenomenology (scattering, absorption, polarization, refraction, diffraction, etc.) primarily in, but not limited to, radio frequency (RF) bands
• Characterize and evaluate radar cross sections (RCS)
• Verify and validate measured data and computational electromagnetic (CEM) predictions
• Create signature predictions using CEM prediction software (SENTRi, Xpatch, COMSOL, CST, HFSS, Feko, etc.)
• Write and present technical information related to development activities
• Assist or lead the team with business development activities by supporting proposal and technical solution development and also in interfacing with other parts of Leidos for multi-disciplinary capture opportunities
• Apply technical leadership abilities and lead or assist teams to develop solutions for complex technical issues

Basic Qualifications:

• Bachelor’s degree with 12+ years’ experience or a master’s degree or higher with 10+ years’ experience in Electrical Engineering or a closely related scientific field such as Physics, Optics, Engineering Physics, etc.
• US citizen
• Must have an active Secret clearance with the ability to obtain a TS/SCI clearance
• Strong understanding of applied electromagnetics with skills in EM modeling and experimentation
• Adept in CEM prediction software and proven history of applying simulation tools to characterize EM phenomenology
• Excellent communication skills and a willingness and interest to collaborate in an interdisciplinary team environment to drive towards overall project and team objectives
• Expert in technical writing, documentation, and organization
• Ability to both lead and work as a team member
• Strong attention to detail and deadlines
• Ability to lead small technical teams to solve complex problems
• A self-starter with a strong drive to lead and develop solutions that meet customer demands in a timely manner

Preferred Qualifications:

• PhD
• Active TOP SECRET is desired, but not required
• Radar Cross Section (RCS) design familiarity
• Knowledge of antenna and radome design principles
• CAD and meshing familiarity
• Supervisory experience
• Interest in Business Development
• Entrepreneurial interest in working across multi-disciplinary teams on larger, more complex undertakings
• A basic understanding of, or exposure to the following is a plus, but not required: Automatic Target Recognition Radar signal processing fundamentals MATLAB, Python, and C++ Experience with running simulations on high-performance computing (HPC), graphics processor units (GPU), and other advanced processing platforms NKE ElectronicWarfare

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:

July 17, 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: Pay Range $131,300.00 - $237,350.00

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

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.

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.

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.

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