Process Modeling Engineer Jobs in Chantilly, VA (NOW HIRING)

Leidos is seeking a highly skilled Modeling Engineer to support critical national security missions for the Defense Threat Reduction Agency and the Defense Intelligence Agency. This 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.

The ideal candidate will bridge the gap between field-captured spatial data and high-fidelity analytical models. 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.

• Build detailed, high-fidelity 3D BIM models of complex underground, hardened, and above-ground facilities, including structural framing, foundations, and critical utilities.
• Map complex system-of-systems connectivity, including structural dependencies, HVAC/MEP systems, communications, power, and operational equipment.
• Convert technical, operational, and intelligence data into precise spatial models to support blast, impact, structural integrity, and physical vulnerability simulations.

• Execute field data collection using terrestrial, aerial, and mobile LiDAR systems, handheld scanners, and photogrammetry tools.
• Process, clean, stitch, and georeference large point cloud datasets into actionable BIM environments using scan-to-BIM workflows.
• Participate in CONUS and OCONUS site surveys in dynamic environments to capture ground-truth physical characteristics.

• Manage model development across multiple classification levels, including Unclassified, Secret, and TS/SCI environments.
• Prepare, filter, and validate spatial and geometric data for high-to-low and low-to-high cross-domain transfer protocols.
• Maintain strict model security controls, ensuring attribution and metadata conform to Intelligence Community classification guidelines.

• Collaborate with weapon effects analysts, structural dynamicists, and intelligence specialists to support target vulnerability and defeat assessment pipelines.
• Quantify structural load paths, material properties, and failure modes under extreme loading conditions.
• Serve as a subject matter expert within the technical domain area.
• Deliver technical briefs, spatial analytical products, and interactive 3D visualizations to key Department of Defense decision-makers.

• Candidates for consideration must possess an in-scope and active TS/SCI Polygraph clearance and the ability/willingness to maintain this clearance while holding this position. U.S. Citizenship is required.
• In-depth understanding of technical principles, theories, concepts, and their application across a range of programs.
• Typically requires a bachelor’s degree in civil engineering, structural engineering, mechanical engineering, geographic information systems, or a related STEM field, and 12-15 years of relevant prior experience. A master’s degree is preferred.
• Relevant work experience includes structural or systems modeling, BIM workflows, and facility spatial analysis.
• Additional relevant experience may be considered in lieu of a degree.
• Proficiency with Autodesk Revit, Navisworks, AutoCAD, SolidWorks, Bentley Systems, including OpenBuildings or MicroStation, or other applicable modeling software.
• Hands‑on experience with point cloud processing software, such as Autodesk ReCap, Leica Cyclone, FARO Scene, or CloudCompare.
• Direct experience conducting LiDAR scanning and photogrammetric site collections.

• Prior experience supporting DTRA, DIA, U.S. Strategic Command, or U.S. Special Operations Command counter-threat missions.
• Familiarity with Hard and Deeply Buried Target design concepts, underground engineering, or hardened structures.
• Background with cross-domain transfer platforms, including CDS tools, guard solutions, and data sanitization standard operating procedures.
• Understanding of finite element analysis or computational fluid dynamics modeling integration, such as Ansys or LS-DYNA.
• Knowledge of GIS platforms, including ArcGIS Pro, and CAD-to-GIS integration workflows.

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.

August 14, 2026

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 $131,300.00 - $237,350.00

The 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.

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 www.Leidos.com.

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 www.leidos.com/careers/pay-benefits.

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 LeidosCareersFraud@leidos.com.

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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.