Signature Modeling Engineer

Leidos LLC; Beavercreek (OH); On-site; USD 58,000 - 105,000; Full time

Benefits offered by this job

Health and Wellness programs

Paid Leave

Retirement plan

Job summary

Leidos LLC in Beavercreek, OH is seeking a signatures modeling engineer to apply RF EM modeling and signature prediction methods. You will work with tools like SENTRi, Xpatch, and COMSOL in a collaborative, onsite team environment to support AFRL, NASIC and other customers.

The role requires a Bachelor's in Electrical Engineering or related field, US citizenship, and an active Secret clearance with TS/SCI potential. Master’s/PhD candidates are preferred for advanced research areas.

Qualifications

• Bachelors in Electrical Engineering or related field.
• US citizen with active Secret clearance and ability to obtain TS/SCI.
• Proficient with EM modeling and CEM tools; strong written and verbal communication.

Responsibilities

• Model and characterize EM phenomenology in RF bands.
• Characterize and evaluate radar cross sections (RCS).
• Verify and validate measured data and CEM predictions.
• Create signature predictions using SENTRi, Xpatch, and other tools.
• Write and present technical information related to development activities.

Skills

EM theory

CEM modeling

Team collaboration

Technical writing

Education

Bachelor’s degree in Electrical Engineering or related field

Master’s / PhD (preferred)

Tools

SENTRi

Xpatch

COMSOL

CST

HFSS

Feko

Job description

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

• Work in small teams to achieve program goals
• Model and characterize electromagnetic (EM) phenomenology’s (scattering, absorption, polarization, refraction, diffraction, etc.) primarily in 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

Basic Qualifications

• Bachelor’s degree with 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
• Proficient understanding of applied electromagnetics with skills in EM modeling and experimentation and interest in continuous learning
• Adept in CEM prediction software and proven history of applying simulation tools to characterize EM phenomenology
• Good communication skills and a willingness and interest to collaborate in an interdisciplinary team environment to drive towards overall project and team objectives
• Demonstrated abilities in technical writing, documentation, and organization
• Ability to work as a team member
• Solid attention to detail and deadlines

Preferred Qualifications

• Master’s / PhD
• Radar Cross Section (RCS) design familiarity
• Knowledge of antenna design principals, array technology, frequency selective surfaces, and/or radome design principles
• CAD and meshing familiarity
• 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 Machine Learning/Artificial Intelligence ElectronicWarfare NKE

Pay and Benefits

Pay Range: Pay Range $57,850.00 - $104,575.00 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. 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 www.Leidos.com. 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 [e-mail].

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.

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.