Job Summary We are seeking an experienced Modeling and Simulation Software Engineer to support regression testing and validation activities for advanced simulation capabilities. This role focuses on testing new simulation features, validating fixes against defect and change requests, reproducing and documenting issues, and supporting automated test execution. The ideal candidate has strong experience with AFSIM, mission-level scenario development, and software development in support of complex modeling and simulation environments. Key Responsibilities • Support regression testing of new simulation features • Validate fixes against defect reports (DRs) and change requests (CRs) • Reproduce reported issues and document test steps and outcomes • Assist with execution and maintenance of automated test suites • Develop and maintain mission-level simulation scenarios • Support and extend modeling and simulation architectures to meet training and analysis requirements Required Skills • Bachelors degree in Computer Science, Engineering, or a related technical field • Minimum of 5 years of professional development experience using C++ or Python • Minimum of 5 years of experience developing with AFSIM • Strong written and verbal communication skills • Active Secret clearance with the ability to obtain a TS/SCI Required Experience • Creation of mission-level AFSIM scenarios and extensions to core frameworks • Demonstrated ability to design, implement, and maintain modeling and simulation architectures that support complex analysis and training needs Desired Experience • Experience integrating AFSIM with other simulation federates • Familiarity with cloud-based modeling and simulation execution environments • Experience with performance tuning and scalability of large-scale simulation runs • Prior experience supporting exercises or events where AFSIM was a primary modeling and simulation tool