Senior Fluid Systems Engineer

Atlanta, GA / Los Angeles, CA
Engineering – Fluids /
Full-time /
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.
$150,000 - $175,000 a year

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.