Senior Modeling & Simulation Engineer – Mission Systems

Trinzic; Reston (VA); On-site; USD 170,000 - 195,000; Full time

Job summary

KBR's Mission Technology Solutions seeks a Principal Modeling & Simulation Software Engineer to design, develop, and maintain modeling primitives and reusable components using AFSIM scripting, C#, Razor, and related tools. You will integrate primitives into simulations and verify them.

The role requires 10+ years in CS/SE, experience with AFSIM or similar, TS/SCI eligibility, and the ability to work in a small high-performance team supporting mission-grade systems.

Qualifications

• 10+ years of relevant experience in modeling, simulation, and analysis (MS&A).
• Proficient in object-oriented software development using C#, C++, Python.
• Experience with mission-level combat simulation frameworks such as AFSIM, NGTS, ITASE, SAFE-SiM, or similar.
• Experience developing/modifying models, behaviors, or simulation components within AFSIM or similar environments.
• Knowledge of software engineering best practices: version control, testing, documentation, and configuration management.
• Active Top-Secret clearance with SCI eligibility.
• Ability to work effectively in a small, high-performance team.
• Strong collaboration in multidisciplinary, expert-driven teams.

Responsibilities

• Design, develop, and maintain modeling primitives, behaviors, and reusable software components using AFSIM scripting languages, C#, Razor, and related technologies.
• Implement new model capabilities and enhancements for operational systems, platforms, sensors, weapons, and C2 functions.
• Develop model compositions by integrating primitives into reusable simulation constructs.
• Create and execute verification and validation test plans for model functionality and fidelity.
• Identify, troubleshoot, and resolve software defects and performance issues through testing and debugging.
• Prepare technical documentation detailing model design, implementation, assumptions, limitations, and test results.
• Collaborate with software engineers, integration teams, analysts, and subject matter experts to meet mission requirements.
• Support integration, regression testing, and configuration management for deployment in enterprise environments.
• Provide technical guidance and peer reviews to promote quality and standards.

Skills

C#

C++

Python

OO design

Education

Bachelor of Science in Computer Science, Software Engineering, or other STEM field

Master of Science in Computer Science, Software Engineering, or other STEM field

Job description

KBR's Mission Technology Solutions seeks a Principal Modeling & Simulation Software Engineer to design, develop, and maintain modeling primitives and reusable components using AFSIM scripting, C#, Razor, and related tools. You will integrate primitives into simulations and verify them.

The role requires 10+ years in CS/SE, experience with AFSIM or similar, TS/SCI eligibility, and the ability to work in a small high-performance team supporting mission-grade systems.