Senior AFSIM Developer

• Architect, develop, and maintain AFSIM models, plugins, and simulation components to support advanced missionlevel analyses.
• Develop custom AFSIM behaviors, algorithms, and decision models (tasking logic, autonomy, federated multidomain behaviors, etc.).
• Integrate external data sources (threat models, performance data, signatures, environmental models) to improve simulation fidelity.
• Analyze simulation results and extract actionable insights and recommendations to stakeholders.
• Collaborate with engineers, analysts, and subject matter experts to define simulation requirements and scenarios.
• Integrate new capabilities, algorithms, and data into AFSIM models to enhance simulation fidelity.
• Document simulation processes, methodologies, and results in technical reports and presentations.
• Support briefings and discussions with customers and stakeholders.

• US citizenship and ability to obtain and maintain a security clearance (if not already held)
• Bachelor's degree in engineering, Computer Science, Mathematics, Physics, orrelated field.
• 7+ years hands-on experience developing AFSIM models, scenarios, and plugins.
• Familiarity with modeling and simulation principles including discreteevent simulation, stochastic modeling, Monte Carlo techniques, and scenario-based experimentation.
• Strong programming skills in languages such as C++, Python, or similar.
• Excellent problem-solving and analytical skills.
• Strong written and verbal communication skills.

• Master's degree in a technical field.
• Experience modeling military platforms, RF systems, weapons, C2 networks, orbital mechanics, or EW effects.
• Familiarity with other simulation tools or frameworks (e.g., MATLAB, STK, or similar).
• Knowledge of data visualization and analysis tools.

• Work on cutting-edge technologies and contribute to mission-critical projects.
• Join a collaborative, high-performing team of engineers and analysts.
• Competitive compensation and benefits package.

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  Interesting Work:
  
  
  
  Our co-workers support some of the most important and critical programs to our national defense and security.
  
  
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  Values:
  
  
  
  Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry.
  
  
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  100% Employee Owned:
  
  
  
  We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year.
  
  
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  Great Benefits - Most Full-Time Staff Are Eligible for:
  
  
  




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  Starting PTO accrual of 20 days PTO/year + 10 holidays/year
  
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  Flexible schedules
  
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  6% 401k match with immediate vesting up to $9k annually
  
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  Semi-annual bonus eligibility (July and December)
  
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  Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account
  
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  Up to $10,000 in annual educational reimbursement
  
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  Other company funded benefits, like life and disability insurance
  
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  Optional zero deductible Blue Cross/Blue Shield health insurance plan
  




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  Track Record of Success:
  
  
  
  We have grown every year since our founding in 1993.
  
  

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance

MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide.

For more information about MTSI, please visit www.mtsi-va.com