HII - Mission Technologies Division is seeking a highly skilled and motivated Software Engineer to design, develop, and maintain critical systems software components, contributing to the foundation of critical US Department of Defense (DoD) Joint Simulation Environment (JSE) systems at the Joint Integrated Test and Training Center – Nellis (JITTC-N), Nellis, AFB, NV. This position is part of a team that provides on-site Modeling and Simulation (M&S) support to establish and deliver high-end Advanced Tactics, Training, and Test capability for Government personnel operating under USAFWC/ACC. This position is Contingent upon funding and has an estimated start date of July 2025.