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# AFSIM developer

- **Company:** NSI Neal Systems, Inc.
- **Location:** Alexandria, VA, United States
- **Experience:** Experienced
- **Salary:** $125,000.0 - $200,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Data Analysis, C++ (Programming Language), Configuration Management, Code Review, Data Reduction, Software Debugging, Python (Programming Language), MATLAB, NumPy, Object-Oriented Software Development, Software Engineering, Verification and Validation (Software), Scripting, Flexi (Photoshop Plugin), Git, Pandas, Matplotlib, Linux Development, Information Technology, Modeling and Simulation, Build Tools, Software Version Control
- **Published:** October 16, 2026
- **Apply:** https://www.juju.com/job/1_nou-520647

## About the Role

engineers and analysts, and contribute to code reviews and configuration management Required Qualifications: + Bachelor's degree in Operations Research, Engineering, Physics, Computer Science, Mathematics, Statistics, or a related technical field + 4-7 years of experience in modeling and simulation, operations analysis, or software development + Hands-on experience developing models or scenarios in AFSIM + Proficiency in MATLAB and/or Python for data analysis, visualization, and automation + Familiarity with object-oriented design, debugging, and build tools + Experience with version control (Git) in a team environment + Active Secret security clearance + U.S. citizenship Preferred Qualifications (in addition to the above Required Qualifications): + Active TS/SCI clearance + Master's degree in a related technical field + Experience with both MATLAB and Python, including libraries such as NumPy, pandas, and Matplotlib + C++ development experience + Experience
developing AFSIM plug-ins or extending the core framework + Familiarity with AFSIM applications such as Wizard, Warlock, and Mystic + Knowledge of military operations, kill chains, air/missile defense, or electronic warfare concepts + Experience with other M&S tools such as NGTS, Brawler, JSAF, STK, STORM, or OneSAF + Experience working in Windows and/or Linux development environments nou (pronounced 'new') Systems: Since its founding in 2012, nou Systems has built a reputation for excellence in innovative engineering, prototype development, and technical and professional services in multiple markets, including missile defense, cybersecurity, test range modernization, biotechnology, and space control.

## Description

We value teamwork and collaboration, and this transition allows us to take that commitment to a new level. nSI empowers our customers by supplying products, services, and expertise with powerful, data-driven insights that transform defense systems and improve capabilities.
We are pleased to announce the opening for a mid-level AFSIM developer who will join our Engineering Services Division in the National Capital Region and become part of our rapidly growing technology company operating in mission engineering, missile defense, cybersecurity, test range modernization, biotechnology, and space control markets.
You will be part of a team known for conducting analysis on critical missions and will help identify concepts and emerging technologies to close capability gaps in support of the warfighter.
Key Responsibilities: + Develop and maintain AFSIM models of platforms, sensors, weapons, communications, and command-and-control systems + Build scenarios and behavior logic to represent realistic operational tactics + Conduct mission-level and engagement-level analysis + Run batch simulations, then post-process, analyze, and visualize output data to support studies and trade analyses + Develop MATLAB and/or Python scripts and tools to automate scenario generation, Monte Carlo runs, and data reduction workflows + Prototype algorithms (e.g., sensor, guidance, or tracking models) in MATLAB or Python before implementing them in AFSIM + Perform verification and validation of models, and document assumptions, data sources, results, and findings + Collaborate with analysts, subject matter experts, and customers to translate operational requirements into simulation capabilities + Independently own assigned development tasks from design through delivery while working alongside senior