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Senior Aerothermal Engineer



Atlanta, GA, USA · Los Angeles, CA, USA
Posted on Friday, October 13, 2023
Hermeus is a startup developing hypersonic aircraft to radically accelerate air travel. At Mach 5, more than twice the speed of the supersonic Concorde, passengers will be able to cross the Atlantic in 90 minutes. On the path to hypersonic passenger aircraft, Hermeus is partnering with government agencies including the US Air Force and NASA to develop a series of autonomous aircraft that derisk the technology and solve urgent national security challenges. These products provide the data and confidence necessary to certify, produce, operate, and maintain safe and comfortable commercial aircraft. Hypersonic aircraft have the potential to create trillions of dollars of new global economic growth per year, unlocking significant resources that can be utilized to solve the world’s greatest problems.
Hermeus is seeking a Senior Aerothermal Engineer to support the development of our hypersonic aircraft programs. As an Aerothermal Engineer, you will play a crucial role in designing, analyzing, and optimizing the thermal performance of our hypersonic vehicles and propulsion systems. Your expertise will contribute to advancing cutting-edge technologies and enabling revolutionary aerospace capabilities. This individual will work closely with the thermal team, and interface with the fluids systems, propulsion, and structures teams.


  • Conduct comprehensive thermal analysis and simulations to ensure the optimal performance of hypersonic vehicles and propulsion systems.
  • Design and develop innovative thermal management systems to handle extreme temperatures encountered during hypersonic flight.
  • Collaborate with multidisciplinary teams to integrate thermal solutions seamlessly into the overall vehicle design.
  • Perform computational fluid dynamics (CFD) simulations and analysis to assess aerodynamic effects on thermal properties.
  • Analyze test data from thermal experiments and flight tests to validate and improve thermal models and simulations.
  • Identify potential thermal-related issues and develop proactive mitigation strategies to enhance vehicle reliability and safety.
  • Optimize heat shielding and thermal protection materials to withstand high-speed flight conditions.
  • Conduct research on emerging thermal technologies and propose their implementation for future projects.
  • Support the development of thermal test plans and contribute to the execution of thermal testing campaigns.


  • Bachelor's degree in aerospace engineering, mechanical engineering, or a related field.
  • 3-5 years of experience in thermal analysis and design within the aerospace or hypersonic industry.
  • Proficiency in using CFD software and other relevant engineering tools for thermal simulations.
  • Strong knowledge of aerodynamics, heat transfer, and thermodynamics principles.
  • Familiarity with thermal protection systems (TPS) and thermal management technologies.
  • Ability to work collaboratively in a fast-paced, dynamic environment with multidisciplinary teams.
  • Excellent problem-solving skills and a proactive approach to challenges.
  • Detail-oriented with a keen eye for accuracy in analysis and design.
  • Strong communication skills to convey technical concepts effectively.

Desired Multipliers:

  • 5+ years of hands-on experience in compressible fluid dynamics
  • Experience in fast-paced design environment
We encourage you to apply even if you have skillsets and experience outside of our current needs as we're always open to connect and discuss future opportunities.