Regional Threats Modeling and Simulations Engineer (Senior-Level) Amentum Services IncRegional Threats Modeling and Simulations Engineer (Senior-Level)Charlottesville, VADemonstrates ability to develop wargames and force-on-force scenarios for threat nations invasions into other countries, to include analysis of battle type factors, and in-depth studies, such as force ratios, national/armed forces strengths and weaknesses, quality and numbers of weapons and equipment, national and armed forces doctrines, and intangibles such as esprit de corps and morale. Our employees lead the Intelligence community in providing superior Identity Intelligence and regional threat analysis, and developing innovative data-driven solutions, supporting the customer through intelligence analysis and tradecraft proliferation.
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.
Enterprise Modeling Engineering Specialist The Aerospace CorpEnterprise Modeling Engineering SpecialistChantilly, VA$86,600–$129,800 / yearAs a member of CMED, you will provide technical capabilities to support our customers in modeling, simulation, and analysis (MS&A) of space, air, and ground-based systems of systems to investigate architecture and concept of operations (CONOPS) performance in nominal and contested operating environments. The Cross-Mission Effectiveness Department (CMED) in the Integrated Performance Subdivision leads integration and application of modeling and simulation capabilities and modern analysis workflows to support end-to-end effects chain analysis and space and space-enabled campaign modeling.
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.
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.
Automation & Analytic Modeling Engineer- GEOINT Systems Planning and AnalysisAutomation & Analytic Modeling Engineer- GEOINTChantilly, Virginia$150,000–$190,000 / yearFull timeSPA provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. SPA provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide both paid and unpaid time away from work.
Automation & Analytic Modeling Engineer Systems Planning And Analysis, Inc.Automation & Analytic Modeling EngineerChantilly, VAThis postion serves as a engineering professional responsible for developing, implementing, and optimizing advanced analytic modeling, automation, and data processing solutions to accelerate the extraction of actionable insights from GEOINT and related intelligence data sources. This position combines expertise in data analytics, systems engineering, automation technologies, and intelligence workflows to enhance mission effectiveness, improve collection strategies, and reduce the time required to deliver meaningful intelligence to end users.
Modeling and Simulation Engineer CACI International IncModeling and Simulation EngineerCharlottesville, VA$98,500–$206,800 / yearThe Opportunity: We are seeking a Modeling and Simulation (M&S) subject matter expert and small team leader to assist simulation development for the National Ground Intelligence Center (NGIC) through formulating, analyzing, executing, and delivering M&S studies to answer customer questions. Pay 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.
Digital Modeling Engineer KBR IncDigital 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.
Modeling and Simulation Engineer Science Applications International CorpModeling and Simulation EngineerChantilly, VAOur robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. This role puts you at the heart of efforts to strengthen the NRO's space resiliency posture - ensuring our nation's most critical space assets remain ready, reliable, and effective.
Modeling-Based Systems Engineer (All levels) Redwire CorpModeling-Based Systems Engineer (All levels)Chantilly, VAYou will build and evolve system level models, support virtual integration and V&V activities, contribute to concept development, and collaborate closely with systems engineers, software teams, mission analysts, and business stakeholders to deliver accurate, traceable, and high fidelity engineering representations across aerospace and defense programs. This role blends physics based modeling, MBSE discipline, and multidomain simulation expertise to ensure that digital twins, digital threads, system interfaces, and analytical models are coherent, validated, and aligned with mission and program objectives.
Model-Based Systems Engineer ArcfieldModel-Based Systems EngineerChantilly, VirginiaFull timeThe selected candidate will work closely with government leadership, acquisition stakeholders, mission engineers, systems engineers, and cross-functional technical teams to develop digital models, system architectures, trade-space analyses, technical documentation, and acquisition-focused engineering products that support portfolio-level decision making. There 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.
Sr. Space Systems Modeling Project Leader The Aerospace CorpSr. Space Systems Modeling Project LeaderChantilly, VA$155,900–$233,900 / yearThe Enterprise Analysis department provides modeling, simulation, and analysis expertise across space and ground system domains within our Program Office to ensure studies and analysis used to support major systems acquisitions and concept of operations development are properly scoped and executed and that results communicate valuable insights to customers across the organization and beyond. You will be our office's technical representative embedded with Department of War analytic organizations (e.g., CAPE, SAF/SA, JCS/J8) while leading coordination with Engineering Technology Group (ETG) teams and customer Directorates to provide novel space-system models at various levels of fidelity, ranging from mission and engagement to campaign models.
Model-Based Systems Engineer Rite-Solutions IncModel-Based Systems EngineerChantilly, VAThe selected candidate will work closely with government leadership, acquisition stakeholders, mission engineers, systems engineers, and cross-functional technical teams to develop digital models, system architectures, trade-space analyses, technical documentation, and acquisition-focused engineering products that support portfolio-level decision making. There 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.
Mid-Level Model Based Systems Engineer General Dynamics Mission Systems, IncMid-Level Model Based Systems EngineerManassas, VA$104,923–$116,398 / yearAs a systems engineer for the Tactical Control System program, you’ll be a member of an agile cross functional team responsible for developing, deploying, and maintaining advanced submarine systems in support of the United States Navy and the Royal Australian Navy fleets. Experience independently executing Model Based System Engineering (MBSE) activities to identify program requirements and support analysis of system design using Systems Modeling Language (SysML) and MagicDraw.
Director - Modeling & Simulation Software The Aerospace CorpDirector - Modeling & Simulation SoftwareChantilly, VA$168,200–$252,400 / yearInformation Systems and Cyber Division (ISCD) staff couple the latest in information system technologies, such as elastic compute clouds, containerization, microservices, real-time operating systems, and visualization frameworks, with expertise in cyber security, software architecture, software engineering, data science, Artificial Intelligence, process improvement, and software development to deliver responsive, resilient, high-performance software intensive systems to our Intelligence Community, DoD, and civilian customers. As an organization with national reach, MSCD works alongside subject matter experts in various disciplines to develop unique-in-the-world capabilities for modeling and simulation, spanning individual space systems through end-to-end space enterprise applications.
Automation and Analytic Modeling Engineer Science Applications International CorpAutomation and Analytic Modeling EngineerChantilly, VAThe Automation and Modeling Subject Matter Expert (SME) serves as a senior engineering professional responsible for developing, implementing, and optimizing advanced analytic modeling, automation, and data processing solutions to accelerate the extraction of actionable insights from GEOINT and related intelligence data sources. This position combines expertise in data analytics, systems engineering, automation technologies, and intelligence workflows to enhance mission effectiveness, improve collection strategies, and reduce the time required to deliver meaningful intelligence to end users.
Modeling & Simulation Engineer (Systems Engineer, Sr) Redwire CorpModeling & Simulation Engineer (Systems Engineer, Sr)Chantilly, VAYou will design and validate simulation components, implement numerical and multi‑domain models, support virtual integration and V&V activities, and collaborate closely with systems engineers, software teams, mission analysts, and UI/UX partners to deliver coherent, data‑driven simulation capabilities across aerospace and defense applications. This role blends physics‑based computation, systems‑engineering discipline, and software‑driven simulation development to ensure that digital twins, scenario models, and system‑level simulations are accurate, scalable, and aligned with mission and product objectives.
Model-Based Systems Engineer (MBSE) - Ground Systems CACI International IncModel-Based Systems Engineer (MBSE) - Ground SystemsCharlottesville, VA$98,500–$206,800 / 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. Responsibilities: The Model Based System Engineer (MBSE) will provide support for systems requirements definition, architecture analysis, and design analysis which includes, but is not limited to: Apply MBSE to develop and maintain SysML models in Cameo to capture requirements, use cases, and system architecture.
Lead System Integrator/Modeling & Simulation Engineer Department of War Avantus FederalLead System Integrator/Modeling & Simulation Engineer Department of WarChantilly, VA$150,000–$200,000 / yearIdeal candidates will serve as the lead system engineer within a mission engineering and modeling and simulation team supporting the Office of the Chief Engineer where they will be responsible for advising and assisting Program Managers & SETAs on the development, design and implementation of complex RDT&E projects across multiple domains (Air, Land, Space & Cyber). If you have the courage to take on a wide variety of complex challenges, then you will experience a unique working environment where innovative teams blend different perspectives, disciplines, and technologies to discover new ways of solving complex problems.
Junior Software Engineer (Modeling & Simulation) - TS/SCI Tenica and Associates LLCJunior Software Engineer (Modeling & Simulation) - TS/SCIChantilly, VAData Integration: Structure and query databases to handle the complex, dynamic data required for robust simulations. The most critical requirement for this role is not years of experience, but an aggressive, relentless drive to tackle and solve incredibly hard problems.
Automation And Analytic Modeling Engineer LV8D SolutionsAutomation And Analytic Modeling EngineerChantilly, VAThe Automation and Analytic Modeling Engineer serves as a senior engineering professional responsible for developing, implementing, and optimizing advanced analytic modeling, automation, and data processing solutions to accelerate the extraction of actionable insights from GEOINT and related intelligence data sources. The successful candidate will combine expertise in data analytics, systems engineering, automation technologies, and intelligence workflows to enhance mission effectiveness, improve collection strategies, and reduce the time required to deliver meaningful intelligence to end users.
Postdoctoral Research Associate, Machine Unlearning and Model Editing for AI Biosecurity University of VirginiaPostdoctoral Research Associate, Machine Unlearning and Model Editing for AI BiosecurityCharlottesville, VA$60,000–$75,000 / yearThe role centers on implementing, innovating, and comparing model editing and unlearning methods, measuring safety--utility tradeoffs against both benchmarks and realistic task batteries, and leading technical development of an open evaluation suite for AI biosecurity. The researcher reports to Assistant Professor Tom Hartvigsen and will work closely with other SDS faculty members including Chirag Agarwal, and Stephen Turner, and works with faculty in interpretability and with a laboratory partner that leads adversarial red teaming.
Model Based Systems Engineer Actalent IncModel Based Systems EngineerManassas, VA$75–$90 / hourYou will contribute to an agile, incremental development program that maintains formal architecture and requirements baselines suitable for major design reviews such as PDRs and CDRs, while helping to define software and hardware requirements for a new, cutting-edge sensor system rather than maintaining legacy solutions. Headquartered in the United States, our teams span 150 offices across North America, EMEA, and APAC-with four delivery centers in India led by 1,000+ extraordinary employees who connect their passion with purpose every day.
Modeling and Fabrication Technician (Security Clearance Needed) GCI, Inc.Modeling and Fabrication Technician (Security Clearance Needed)Chantilly, VADesign work will include the design of precision mechanisms and complex assemblies that include machined, additive and subtractive fabrication, circuit boards, low and high voltage wiring, and custom radio frequency support components. The Modeling and Fabrication Technician is responsible for physical design, testing, and documentation responsibilities in the development of new structures and support of existing systems for GCI custom communication systems and electronic devices.
Postdoctoral Research Associate, Machine Unlearning and Model Editing for AI Biosecurity Commonwealth of VirginiaPostdoctoral Research Associate, Machine Unlearning and Model Editing for AI BiosecurityCharlottesville, VA$60,000–$75,000 / yearThe role centers on implementing, innovating, and comparing model editing and unlearning methods, measuring safety - -utility tradeoffs against both benchmarks and realistic task batteries, and leading technical development of an open evaluation suite for AI biosecurity. The researcher reports to Assistant Professor Tom Hartvigsen and will work closely with other SDS faculty members including Chirag Agarwal, and Stephen Turner, and works with faculty in interpretability and with a laboratory partner that leads adversarial red teaming.
Lead Systems Engineer (Modeling, Simulation, & Analysis) BryceTechLead Systems Engineer (Modeling, Simulation, & Analysis)Chantilly, VAThe candidate will provide technical input and advice to the Program Manager and/or technical director serve in a Analysis Lead Engineering role to support design reviews, integration of analysis results with real world test results, test procedures, and generate analysis results that evaluate the vendor's solutions capability to meet PWSA architecture needs. BryceTech has been recognized in the Washington Technology Fast 50 ranking of top high-growth small businesses for five consecutive years and received a GovCon Contractor of the Year Award in 2025, underscoring our strong growth, competitive positioning, and excellence in federal contracting.
Director of Marketing Science Analytics & Commercial Intelligence (Customer Engagement Team) Analytic Partners IncDirector of Marketing Science Analytics & Commercial Intelligence (Customer Engagement Team)Charlottesville, VAThe Director plays a prominent role as a customer and team lead with hands-on involvement in project management, business interpretation and application, Customer communication, insights/results delivery and ultimately the adoption of technology and the analytics program within the Customer organization. Our holistic approach to decisioning is powered by our industry-leading platform and team of experts, who help leaders make better decisions, faster - unlocking business growth and creating powerful customer connections.