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Defense Modeling Simulation Jobs in Manassas, VA

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Defense Modeling Simulation information

See Manassas, VA salary details

$39K

$101.2K

$144K

How much do defense modeling simulation jobs pay per year?

As of Aug 19, 2026, the average yearly pay for defense modeling simulation in Manassas, VA is $101,232.00, according to ZipRecruiter salary data. Most workers in this role earn between $78,500.00 and $129,500.00 per year, depending on experience, location, and employer.

What is the difference between Defense Modeling Simulation vs Defense Systems Engineer?

AspectDefense Modeling SimulationDefense Systems Engineer
Required CredentialsBachelor's or higher in engineering, computer science, or related fields; often certifications in modeling and simulationBachelor's or higher in engineering, systems engineering, or related fields; certifications in systems engineering may be preferred
Work EnvironmentResearch labs, defense contractors, government agencies; focus on simulation development and analysisDesign, develop, and integrate defense systems; work in engineering teams within defense companies or military organizations
Employer & Industry UsagePrimarily in defense research, simulation development, and testingInvolved in system design, integration, and lifecycle management of defense platforms

Defense Modeling Simulation specialists focus on creating and analyzing simulations to test defense concepts, while Defense Systems Engineers design and develop actual defense systems. Both roles require engineering backgrounds but differ in their core responsibilities and work environments.

What are popular job titles related to Defense Modeling Simulation jobs in Manassas, VA?

For Defense Modeling Simulation jobs in Manassas, VA, the most frequently searched job titles are:

What cities near Manassas, VA are hiring for Defense Modeling Simulation jobs?

Cities near Manassas, VA with the most Defense Modeling Simulation job openings:

Defense Modeling Simulation jobs near you
Infographic showing various Defense Modeling Simulation job openings in Manassas, VA as of June 2026, with employment types broken down into 74% Full Time, 22% Part Time, and 4% Contract. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution, with an average salary of $101,232 per year, or $48.7 per hour.

Modeling & Simulation Analyst/Developer

LMI

Tysons, VA • Hybrid

Full-time

Re-posted 23 days ago

Job description

LMI is seeking a skilled Forward Deployed Engineer in the Washington, DC region to join one of our M&S customer development teams. Successful Forward Deployed Engineers demonstrate competency in integrating advanced technologies into existing business processes, building new functionality, ensuring successful software development, analysis, or deployments, and working closely with customers. This role requires a combination of technical skills, strong communication, and the ability to quickly turn ideas into production caliber code. This role will work and engage directly with customers on-site, in a hybrid format, or remotely, as required by each customer including the potential for occasional short-term travel to customer locations across the United States.

This is a hybrid (onsite/remote) role. This position requires the ability to obtain a Secret clearance. You must be a U.S. citizen.

LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.

 Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and energy sectors—helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.


  • Design, implement, and maintain analytical models within our M&S capability called RAPTR. 
  • Perform testing and validation of models and code to ensure accurate outputs.
  • Perform operations research analyses with RAPTR to answer client questions and recommend efficient courses of action
  • Participate in client meetings to understand requirements and to brief your technical findings and analyses.
  • Collaborate with other RAPTR software engineers, modelers, and analysts to optimize performance for large-scale simulations. 
  • Implement monitoring, logging, and alerting to ensure system reliability and availability. 
  • Troubleshoot issues across cloud infrastructure, networks, and simulation workloads. 
  • Stay current with advances in cloud technologies and recommend improvements to enhance RAPTR capabilities. 

Qualifications: 

  • Bachelor’s degree in Computer Science, ORSA, Data Science, or related field (or equivalent work experience). 
  • 5+ years in performing complex data analytics such as building AI/ML models, or physics-based models.
  • Previous experience with modeling and simulation (M&S) tools
  • Experience with briefing and engaging with DoD customers. 
  • Strong problem-solving skills and ability to work in a collaborative, fast-paced environment. 
  • Ability to obtain a Secret clearance. You must be a U.S. citizen.

Desired Qualifications 

  • Experience supporting modeling and simulation platforms or compute-intensive applications. 
  • Experience with cloud infrastructure (AWS, Azure, or GCP). 
  • Ability to obtain TS/SCI clearance
  • Knowledge of DoD cloud security requirements (IL4/IL5, FedRAMP, CMMC). 
  • Experience working in Agile development teams. 

US-VA-Tysons

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