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Senior Fluid Systems Engineer



Software Engineering
Atlanta, GA, USA · Los Angeles, CA, USA
Posted on Friday, October 6, 2023
Hermeus is an aerospace and defense technology company founded to radically accelerate air travel by delivering hypersonic aircraft. The company aims to develop hypersonic aircraft quickly and cost-effectively by integrating hardware-rich, iterative development with modern computing and autonomy. This approach has been validated through design, build, and test of the company’s first combined turbojet-ramjet engine and is now being scaled through its first flight vehicle program, Quarterhorse. Hermeus is also developing Darkhorse — an uncrewed hypersonic aircraft designed to deliver unique asymmetric capabilities to the warfighter.
We are seeking a highly skilled and experienced Senior Fluid Systems Engineer to join our dynamic team and contribute to the development of the next generation of hypersonic vehicles. As a Senior Fluid Systems Engineer at Hermeus, you will play a pivotal role in designing, analyzing, and testing fluid systems for our hypersonic vehicles. You will collaborate closely with a multidisciplinary team of engineers to ensure the safe and efficient operation of our cutting-edge propulsion and thermal management systems. This position offers a unique opportunity to work on groundbreaking technology in a fast-paced and collaborative environment.

Key Responsibilities:

  • Lead the design and analysis of fluid systems, including propulsion, thermal management, and fluid components for hypersonic vehicles.
  • Perform fluids system sizing analysis to determine basic system requirements
  • Transform system requirements into hardware concepts and trade implementation and architecture options
  • Conduct performance analyses, and optimization studies to ensure the efficiency and reliability of fluid systems.
  • Perform experimental testing and validation of fluid system components and configurations.
  • Coordinate and execute development, qualification, and acceptance testing of flight hardware.
  • Provide technical guidance and mentorship to junior engineers in the fluid systems team.
  • Participate in design reviews, risk assessments, and problem-solving sessions to ensure project success.


  • Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a related field.
  • Minimum of 4 years of experience in fluid systems engineering, hypersonic or supersonic systems or rocketry preferred.
  • Strong knowledge of fluid dynamics, heat transfer, and mechanical design.
  • Experience with fluid systems and fluid component design, analysis, and testing.
  • Excellent problem-solving skills and the ability to work in a fast-paced, collaborative environment.
  • Strong communication and leadership skills.
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.