We are seeking an Senior Aerothermodynamics Engineer that will own the Aerodynamic and Aerothermal modeling for a supersonic ramjet system, including inlet, transition mechanism, and nozzle optimization for our new Broomfield, Colorado office, Responsibilities: • Perform CFD simulations of inlets, shock trains, isolators, and combustor flow fields. • Model combustion chemistry and flame holding • Conduct conjugate heat transfer analysis for hot structures • Generate aerodynamic loads, drag polars, and ramjet performance maps • Provide design guidance for duct geometry and structural integration • Support wind tunnel testing and data correlation Requirements • Bachelors degree required. • 5+ years experience with supersonic or ramjet CFD • Expertise in ANSYS Fluent, Start-CCM+ or OpenFOAM • Strong understanding of turbulence, high-temp chemistry, and multiphase flow • Experience with grid generation, meshing strategies, and automation Preferred Qualifications: • M.S. or Ph.D in Aerospace Engineering or related field • Experience with reacting flow and particle combustion • Familiarity with scramjet/ramjet testing and data reduction • Knowledge of high-temperature materials interaction and ablation models