Polaris Raumflugzeuge GmbH is seeking a Rocket Engine Flow Simulation Engineer to perform CFD simulations for liquid rocket engines, focusing on hot gas flow, cooling channel analysis, and thermal loads. The role involves supporting design, validating models, and optimizing performance. Candidates should have an M.Sc. in Space/Aerospace Engineering with at least 2 years of experience in CFD, specifically with compressible, supersonic, hot gas, and reactive flows in rocket engines, along with a strong understanding of fluid dynamics, thermodynamics, and heat transfer.