Model-Based Systems Engineer LeidosModel-Based Systems EngineerRockville, MD$69,550–$125,725Bachelor’s degree in engineering or related field with 2+ years of prior relevant experience or a master’s degree with at least a year experience in one of these areas: systems engineering, software engineering, test engineering or related field. March 30, 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.
Predictive Modeling Analyst IV ArcfieldPredictive Modeling Analyst IVChantilly, VirginiaFull timeThere are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. Our solution areas include space mission engineering, atmospheric science, digital engineering, mission assurance, and advances in modeling and simulation that together with our enterprise-wide adoption of artificial intelligence and machine learning, lead to better systems and timely, reliable decision-making.
NewSoftware Engineer, Agentic Modeling & Simulation (Systems Engineer, Sr) Redwire SpaceSoftware Engineer, Agentic Modeling & Simulation (Systems Engineer, Sr)Chantilly, Virginia$93,000–$150,000 / yearTo conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. You will work across simulation, data, and systems engineering teams to deliver intelligent, reliable, and mission‑aligned agentic capabilities supporting aerospace, defense, and other high‑integrity environments.
Deals Services - Manager, Strategic Finance and FP&A, Advanced Decision Modeling RSM US LLPDeals Services - Manager, Strategic Finance and FP&A, Advanced Decision ModelingMcLean, VA$112,100–$225,500 / yearThe salary range (or starting rate for interns and associates) for this role represents numerous factors considered in the hiring decisions including, but not limited to, education, skills, work experience, certifications, location, etc. Develops and reviews complex, fully integrated financial models, including operating, cash flow, valuation, and transaction models, to support strategic decision-making.
Software Engineer, Agentic Modeling & Simulation (Systems Engineer, Sr) Redwire CorpSoftware Engineer, Agentic Modeling & Simulation (Systems Engineer, Sr)Chantilly, VA$93,000–$150,000 / yearYou will work across simulation, data, and systems engineering teams to deliver intelligent, reliable, and mission‑aligned agentic capabilities supporting aerospace, defense, and other high‑integrity environments. To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.
Aerospace Modeling & Simulation Software Engineer (TS/SCI) MaxaarAerospace Modeling & Simulation Software Engineer (TS/SCI)Herndon, VirginiaThis is a hands-on technical role for a software developer with an aerospace mindset—someone who enjoys designing practical tools, improving simulation capabilities, working with large technical datasets, and translating complex mission needs into reliable, maintainable software. Bachelor’s degree from an accredited college or university in Computer Science, Software Engineering, Aerospace Engineering, Electrical Engineering, Mechanical Engineering, Mathematics, Physics, or a related technical field.
Senior Modeling Engineer - TS/SCI Polygraph Required Leidos Holdings IncSenior Modeling Engineer - TS/SCI Polygraph RequiredReston, VA$131,300–$237,350 / yearThis position focuses on advanced structural modeling of complex facilities, critical infrastructure, and target environments to enable Countering Weapons of Mass Destruction and Hard and Deeply Buried Target vulnerability and defeat assessments. In this role, you will lead 3D Building Information Modeling efforts, manage cross-domain data movement between unclassified and classified networks, and perform field surveys using LiDAR and point cloud technologies.
Orbit Analyst and Space Application Modeling Science Applications International CorpOrbit Analyst and Space Application ModelingChantilly, VA$120,001–$160,000 / yearThis Orbit Analyst and Space Modeling role will work in a collaborative team-focused environment in prototyping, designing, and integrating tools which will be used in modeling and simulating space vehicle missions. Your role will be to provide expertise and proficiency to develop algorithms, support modeling and simulation efforts and provide orbit analytic skills to conduct analyses to support physics-based modeling for space mission applications.
Network Modeling And Simulation Technician CACI International Inc.Network Modeling And Simulation TechnicianSterling, VA$120,800–$265,800 / yearPay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. The successful candidate will be responsible for developing and executing complex network models and simulations to optimize network performance, capacity, and reliability across various technologies.
Aerospace Modeling & Simulation Software Engineer (TS/SCI) VantorAerospace Modeling & Simulation Software Engineer (TS/SCI)Herndon, VirginiaThis is a hands-on technical role for a software developer with an aerospace mindset—someone who enjoys designing practical tools, improving simulation capabilities, working with large technical datasets, and translating complex mission needs into reliable, maintainable software. Bachelor’s degree from an accredited college or university in Computer Science, Software Engineering, Aerospace Engineering, Electrical Engineering, Mechanical Engineering, Mathematics, Physics, or a related technical field.
Deals Services - Manager, Strategic Finance And Fp&A, Advanced Decision Modeling RSMDeals Services - Manager, Strategic Finance And Fp&A, Advanced Decision ModelingMclean, VA$112,100–$225,500 / yearThe salary range (or starting rate for interns and associates) for this role represents numerous factors considered in the hiring decisions including, but not limited to, education, skills, work experience, certifications, location, etc. Develops and reviews complex, fully integrated financial models, including operating, cash flow, valuation, and transaction models, to support strategic decision-making.
Predictive Modeling Analyst IV Rite-Solutions IncPredictive Modeling Analyst IVChantilly, VAThere are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In depth experience in at least one of the following disciplines: Collection Performance, Resource Allocation, Multi-band Remote Sensing, Sensor Engineering, Product Quality, Vehicle Engineering, Orbit Mechanics, Functional Availability, Geolocation Accuracy.
Digital Modeling Engineer KBRDigital Modeling EngineerChantilly, VAKBR is seeking a Senior Digital Modeling Engineer to support Model Based Systems Engineering (MBSE) efforts for an Intelligence Community Space customer. KBR's National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities.
SIGINT/GEOINT Modeling & Simulation Engineer The Aerospace CorpSIGINT/GEOINT Modeling & Simulation EngineerChantilly, VA$129,000–$249,600 / yearAs the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. The Surveillance and Navigation Architecture Performance Department (SNAPD) in the Integrated Performance Subdivision aspires to be the premier force advising the evolution of national security and civil space enterprises, leveraging our modeling and simulation (M&S) expertise to evaluate end-to-end architecture performance.
Space Domain Awareness Modeling & Analysis Engineer The Aerospace CorpSpace Domain Awareness Modeling & Analysis EngineerChantilly, VA$129,000–$249,600 / yearThe Sensor Modeling and Simulation Department (SMSD) supports all aspects of advanced remote sensing system development: designing and assessing the performance of optics and electro-optical focal plane arrays, modeling the end-to-end sensing system, simulating target scenes and atmospheres, developing innovative data processing and computer vision algorithms, and producing simulated data products for new applications. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers.
Space Architecture Performance Modeling & Simulation Specialist The Aerospace CorpSpace Architecture Performance Modeling & Simulation SpecialistChantilly, VA$129,000–$249,600 / yearAs the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. The Surveillance and Navigation Architecture Performance Department (SNAPD) in the Integrated Performance Subdivision aspires to be the premier force advising the evolution of national security and civil space enterprises, leveraging our modeling and simulation (M&S) expertise to evaluate end-to-end architecture performance.
NewEO/IR Remote Sensing Modeling & Simulation Engineer The Aerospace CorpEO/IR Remote Sensing Modeling & Simulation EngineerChantilly, VARemoteThe Sensor Modeling and Simulation Department (SMSD) supports all aspects of advanced remote sensing system development: designing and assessing the performance of optics and electro-optical focal plane arrays, modeling the end-to-end sensing system, simulating target scenes and atmospheres, developing innovative data processing and computer vision algorithms, and producing simulated data products for new applications. Develop and use innovative techniques and tools for applications including image chain modeling, spectroscopy, computer vision, change detection and tracking, space domain awareness, lidar and 3D remote sensing, EO/IR remote sensing, product quality metrics, optics, calibration, and data simulation.
Sr. Aerospace Modeling & Simulation Engineer MaxaarSr. Aerospace Modeling & Simulation EngineerHerndon, Virginia8+ years of professional experience in space systems modeling and simulation, including knowledge of the theory and applications of astrodynamics, remote sensing, spacecraft design, aerospace systems operations, or complex systems integration. Bachelor’s degree from an accredited college/university, in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Mathematics, Physics, or Computer Science. .
Sr. Systems Engineer - Modeling Woodside Staffing SolutionsSr. Systems Engineer - ModelingMcLean, VAThe role focuses on TeamWork Cloud, Cameo, cloud-based application deployment, CI/CD automation, databases, identity integration, testing, and interoperability across enterprise engineering tools. Experience configuring, deploying and maintaining COTS applications/tools systems engineering experience (configuring/deploying AaC using CI/CD pipeline in a cloud-based environment).
Senior Financial Analyst – Financial Modeling Heven AeroTechSenior Financial Analyst – Financial ModelingSterling, Virginia$116,000–$165,000 / yearThe right candidate builds models as their primary work product, takes active ownership of the data pipeline feeding those models, and serves as the connective tissue across Office of the CEO, Finance, Accounting, Contracts & Procurement, Operations, Manufacturing, Engineering, and Growth to ensure the right data gets into the right place at the right time. 5–8 years of experience in a role where financial modeling was the primary work product — investment banking, private equity, or a dedicated corporate finance modeling function at a complex, multi-entity organization.