Radar Sustainment Engineer – System Model Development

Leidos; Huntsville (AL); On-site; USD 58,000 - 105,000; Full time

Job summary

Leidos Defense Systems in Huntsville, AL seeks a Sustainment Engineer for Radar System Model Development to work on RF/EW projects, open-air radar development, and SIL/HWIL simulations. You will sustain high-fidelity models, troubleshoot model behavior, and integrate into real-time architectures in a Windows environment.

The role requires a degree in EE/CS/CE/Math/Physics, strong C++ skills, and US citizenship with clearance eligibility.

Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Computer Science, Computer Engineering, Math or Physics.
• Background in C++ software development and real-time simulation is required.
• US Citizen with ability to obtain/maintain a Final Secret or Secret clearance.

Responsibilities

• Sustainment and development of analytic to high-fidelity models of RF systems for EW analysis.
• Troubleshoot and rectify errant threat model behavior based on customer feedback.
• Develop and integrate into real-time/non-real-time simulation architectures.
• Assess operator-in-the-loop effects on radar and missile simulations.
• Develop threat models and waveform scheduling, signal processing and closed-loop behavior.
• Develop simulation GUI and tooling for Windows environments.
• Test, verify, and document development and analysis efforts.

Skills

C++ development

Team collaboration

Troubleshooting

Education

Bachelor’s or Master’s degree in Electrical Engineering, Computer Science, Computer Engineering, Math, Physics

Tools

MATLAB/Simulink

Visual Studio

GitHub

JIRA

PowerShell

Linux

CMake

Job description

Description

Leidos Defense Systems is seeking a talented Sustainment Engineer for Radar System Model Development to join a diverse team in Huntsville, AL to create unique solutions for complex problems involving foreign weapon systems. With offices across the United States engaging in the defense, space, cyber and commercial fields, Leidos Dynetics provides alert, cost-effective engineering, scientific and IT solutions.

In this role, you will help to sustain radar system software models and assist the team developing them in support of radio frequency (RF) and Electronic Warfare (EW) projects for the Defense Intelligence an Electronic Warfare Communities – specifically a diverse portfolio of projects and programs which specialize in foreign threat radar systems, RF software-in-the-loop (SIL) and hardware-in-the-loop (HWIL) simulators, and open-air radar development.

Primary Responsibilities.

• Sustainment and development of analytic to high-fidelity models of RF systems to support EW analysis.
• Ability to troubleshoot and rectify errant threat model behavior based on customer feedback.
• Development and integration into real-time and non-real-time simulation architectures.
• Assessing effects of operator-in-the-loop on radar and missile weapon system simulations.
• Threat model development to match intelligence assessments, including waveform scheduling, correlation/tracking, signal processing, and closed-loop missile behavior.
• Simulation and Graphical User Interface (GUI) development primarily focused on Windows.
• Testing, verification, and documentation of development and analysis efforts.

Basic Qualifications.

• Bachelor’s or Master's Degree in Electrical Engineering, Computer Science, Computer Engineering, Math, Physics from an ABET accredited institute and 0+ years of relevant work history is required.
• A background in C++ software development is required.
• Candidate must demonstrate relevant skills in one or more of the primary focus areas, be self-motivated, have good interpersonal skills, and have the ability/desire to work in a technical team to solve challenging problems utilizing a broad spectrum of skills.
• Possess a demonstrated ability to manage and prioritize multiple tasks, adapt quickly to changing demands, and work both solo and on a team.
• Candidate must be a resident of the North Alabama area or willing to relocate to the Huntsville, AL area.
• Candidate must be a US Citizen.
• Candidate must possess (and be able to maintain) a Final Secret Clearance OR meet the eligibility to obtain (and maintain) a Secret Clearance.

Preferred Qualifications.

• A strong background in C++/C# in a Windows operating environment is desired. Linux experience is desirable, but not required.
• Experience with weapons system analysis, modeling and simulation, graphics and displays, and real-time operating systems is desired.
• Experience with Microsoft Visual Studio, MATLAB/Simulink, Atlassian products (JIRA, Bitbucket, etc.), GitHub products, Bash, Windows Presentation Foundation (WPF), PowerShell, Linux, and CMake are a plus.
• Additional consideration will be given to candidates with a working knowledge or radar fundamentals, electronic warfare, and digital signal processing.

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:

September 8, 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 $57,850.00 - $104,575.00

The Leidos pay range for this job level is a general guideline onlyand 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.

About 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 $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

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 at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

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.