Aerospace Modeling and Simulation Engineer - TS/SCI

Leidos is seeking a motivated, detailed-oriented problem-solver to join our modeling and simulation team as an Aerospace Modeling and Simulation Engineer in Dayton, OH. You will play a valuable part in developing and testing models of aerospace systems, to include air-launched weapons; ballistic missile systems; avionics; hypersonic vehicles; and guidance, navigation, and controls across a wide range of projects and programs.Primary ResponsibilitiesDevelop, integrate, and test models of aerospace systems based on provided information, research, and engineering principles.Document model performance against requirements.Document algorithm design.Work collaboratively with an engineering team comprised of internal and external team members.Interact with external stakeholders to define requirements and perform model demonstrations.​Basic Qualifications:Candidate must possess a Bachelor’s Degree in Aerospace Engineering, Mechanical Engineering, or equivalent degree from an ABET-accredited universityCandidate must have 4 or more years of experienceExperience with 3DOF/6DOF flight modelsExperience in MATLAB/SimulinkExperience with system level requirementsDetailed understanding of the systems engineering processDemonstrates solid understanding and intuition of the functionality and interdependency of aerospace systemsStrong written and verbal communication skills and attention to detail to communicate clearly with internal and external stakeholdersOrganizational skills to document work and interface with team members to ensure flow of informationCandidate must be a US Citizen and possess a Secret Clearance and meet the eligibility to obtain (and maintain) a TS/SCI Clearance.Candidate must be local to or willing to relocate to the Dayton, OH area.Preferred Qualifications:Experience in C++ or PythonExperience integrating and testing GNC algorithmsExperience with ballistic missiles, air-launched missiles, or hypersonic vehiclesIf 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:October 5, 2026For 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 $87,100.00 - $157,450.00The 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.SummaryLocation: Dayton, OHType: Full time