Model-Based Systems Engineer LeidosModel-Based Systems EngineerWashington, DC$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.
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.
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.
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.
Onestream Modeling Specialist Developer, Senior Consultant DeloitteOnestream Modeling Specialist Developer, Senior ConsultantBaltimore, MD$105,000–$207,000 / yearAs a OneStream Modeling Specialist Developer on the Business Finance team, you will be responsible for designing, developing, and maintaining OneStream workforce planning solutions that support budget and finance business processes. The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.
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. .
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.
Aerospace Modeling & Simulation Software Engineer (TS/SCI) Maxar Technologies Inc (Inactive)Aerospace Modeling & Simulation Software Engineer (TS/SCI)Herndon, VA$116,000–$275,000 / yearThis 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.
Postdoctoral Fellow in Medical Image Segmentation and Multiphysics Modeling for MR-Guided Brain Hyperthermia - Radiation Oncology University of Maryland School of MedicinePostdoctoral Fellow in Medical Image Segmentation and Multiphysics Modeling for MR-Guided Brain Hyperthermia - Radiation OncologyBaltimore, MDDr. Rodrigues brings 18 years of research experience in computational modeling, applicator design, and experimental validation, together with more than 12 years of clinical hyperthermia experience and leadership service in major international thermal therapy societies. The fellow will also develop and evaluate multiphysics computational models coupling microwave electromagnetic energy deposition with bioheat transfer to predict specific absorption rate and temperature distributions in the brain and surrounding tissues.
Senior Financial Analyst - Financial Modeling Heven AeroTech IncSenior Financial Analyst - Financial ModelingSterling, VAThe 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.
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.
Junior Modeling and Simulation Engineer BlueHalo CareerJunior Modeling and Simulation EngineerAnnapolis Junction, MarylandDetermination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data. In this position you will execute model-based air and missile defense analysis supporting the MDA Engineering’s Architecture Validation/International team’s joint analysis with international partners.
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).
2027 Internship - System Modeling, Evaluation, and Planning Group (KFA) Johns Hopkins University Applied Physics Laboratory LLC2027 Internship - System Modeling, Evaluation, and Planning Group (KFA)Laurel, MDHave had coursework/are experienced in - parameter estimation, flight dynamics, guidance, navigation, or control, radiation environments, the principles of radiation interactions with matter, optimization and numerical methods, high energy particle physics, thermal mechanical engineering, nuclear engineering, nuclear weapon effects, or plasma physics. Have programming & simulation experience - You can code in at least one scientific language (Python, MATLAB, Julia, C++, etc.), have experience with version control systems such as gitlab or github, and have built or used simulation models, numerical solvers, or data‑analysis pipelines.
Aircraft Propulsion Flow Modeling Engineer PeratonAircraft Propulsion Flow Modeling EngineerGovernment Site, Maryland$112,000–$179,000 / yearFull timeCFD Tool Experience: Working knowledge and experience with CharLES and/or Large Eddy Simulation (LES) tools for modeling aircraft-related flows or gas turbine engine flows. Current projects include the need to reduce flow separation, predict flow induced forcing on nozzles and inlets, and analyze heat transfer for current and future Navy aircraft systems.
Sr. Aerospace Modeling & Simulation Engineer VantorSr. 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. .
Aerospace Modeling & Simulation Engineer II MaxaarAerospace Modeling & Simulation Engineer IIHerndon, Virginia3 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. 7 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.
NewRisk Modeling Services P&C - Director PwCRisk Modeling Services P&C - DirectorBaltimore, MD$134,000–$348,500 / yearPwC does not intend to hire experienced or entry level job seekers who will need, now or in the future, PwC sponsorship through the H-1B lottery, except as set forth within the following policy: https://pwc.to/H-1B-Lottery-Policy . As a Director, you will set the strategic direction, oversee multiple projects, and cultivate impactful executive-level client relations while mentoring the next generation of leaders.