Senior Multiphysics Engineer, High Speed Reacting Flow

What you'll do

• Perform CFD analysis of internal and high-speed flows involving combustion.
• Size designs using hand calculations and 1D models before refining them with 3D CFD.
• Predict heat loads, surface temperatures, and pressures for thermal and structural teams.
• Set up gas properties and chemistry appropriate to the modeled conditions.
• Support rocket nozzle, insulation, and case design decisions through technical analysis.
• Build and document repeatable workflows for other engineers to execute consistent analyses.
• Compare simulation predictions against static fire and ground test data to improve models.
• Support material response and erosion analysis in high-temperature environments.

What we're looking for

• Master’s degree in Aerospace, Mechanical, Chemical Engineering, Engineering Physics, or a related field.
• Ability to obtain and maintain a U.S. secret security clearance.
• 5+ years of experience in CFD, aerothermal, thermal, or combustion analysis.
• Foundational understanding of compressible flow including shocks, choked flow, and supersonic nozzles.
• Strong first-principles understanding of heat transfer and fluid dynamics.
• Experience with commercial CFD code such as STAR-CCM+, Fluent, or similar.
• Proficiency in applying hand calculations and 1D models to independently validate CFD results.
• Programming experience in Python, MATLAB, or similar; technical writing and presentation skills are required.
• PhD in a related field (preferred).
• Active U.S. Secret or Top Secret security clearance (preferred).
• Experience with solid rocket motors, propulsion systems, or energetic materials (preferred).
• Experience with reacting flow modeling, chemistry/gas property tools, or high-temperature flows (preferred).
• Experience with multiphase flow, exhaust plumes, or comparing models against instrumented test data (preferred).
• Scripting and automation experience in Python, STAR-CCM+ Java macros, or Fluent UDFs (preferred).