Aerospace Modeling and Simulation Engineer

**Description** Leidos is dedicated to making the world a safer place. This starts with helping our customers in the Defense Industry achieve their critical missions. Our dedicated Defense Group employees are solving critical challenges across the globe. 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.With offices across the United States engaging in the defense, space, cyber and commercial fields, Leidos provides responsive, cost-effective engineering, scientific and IT solutions. Leidos is well known for our people-oriented culture, positive work environment, technical excellence, and resilient business ethics. Leidos is seeking a talented aerospace modeling and simulation engineer within the Flight Systems Department. As part of the Leidos Threat Analysis and Modeling branch, you will provide solutions to complex technical problems involving modeling, simulation, and analysis of missiles, space systems, hypersonics, and more. **Primary Responsibilities** + Developing and maintaining simulations to evaluate performance and flight dynamics of an aerospace flight vehicle. + Creating 6-DOF, 3-DOF, and/or hardware-in-the-loop (HWIL) simulations by incorporating aerodynamic & propulsion models, Guidance/Navigation/Control (GNC) algorithms, and other features to accurately characterize the capabilities of foreign or domestic missiles systems and other flight vehicles. + Providing accurate assessments to inform Department of Defense policy makers, acquisition program, warfighter consumers, or other organizations to support their needs. + Developing, upgrading, or using scripts, GUIs, or other utilities to support analysis and programmatic efforts. **Basic Qualifications** + This position requires a fundamental understanding of aerospace engineering concepts, particularly including flight dynamics, simulation, orbital mechanics, and/or guidance/navigation/controls. Candidate must also possess a solid foundation of programming experience in Matlab/Simulink, C/C++, Python, or other language. + Candidate must possess strong technical communication skills and an ability to work both independently and in collaborative team environments. + Candidates must be a resident of North Alabama area or willing to relocate to work on-site at the Huntsville, AL office. + Candidates must have a bachelor's degree with 2-3 years of relevant experience or a graduate degree in Aerospace, Mechanical Engineering, Physics, Computer Science, or related field from an ABET accredited school. **Security Clearance Qualifications** + Must be a U.S. Citizen with an active Secret Security Clearance and have the ability to obtain a Top Secret/SCI clearance with polygraph. **Preferred Qualifications** + Familiarity with DoD processes and methods. + Strong math skills in the areas of linear algebra, matrix math, statistics, trigonometry, and coordinate transformation. + Experience with: + Configuration management software, such as Git or Mercurial + Physics-based modeling and simulation + Simulink code-generation + GNC applications of flight vehicles, guided munitions, and/or UAS systems + C++ programming 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:** December 10, 2025 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 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 . **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 . **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 [email protected] . 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. REQNUMBER: R-00171860 All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.