Propulsion Test Engineer
Hermeus
Quality Assurance
Jacksonville, FL, USA
Posted on Mar 17, 2025
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.
The Hermeus Test discipline owns the cradle to grave testing of the fastest unmanned reusable air breathing aircraft on the planet. These are extraordinary vehicles, and we're seeking extraordinary Test Engineers who can drive, thrive, and survive in a Mach 5 environment.
At Hermeus, we are constantly iterating and integrating. We test early and often to minimize technical and program risk. We build the test infrastructure that supports our full range of test programs spanning development, operational, and certification testing.
Hermeus is seeking a Propulsion Test Engineer to join our growing team at our newest facility in Florida. As a Propulsion Test Engineer, you will be responsible for the development, maintenance, and operations of propulsion test stands. This position is an opportunity to collaborate in a highly interdisciplinary environment and own significant contributions for the development of cutting-edgeaerospace technologies.
What You’ll Do as a Propulsion Test Engineer
- Responsible for the development, maintenance, and operations of propulsion test hardware (including facilities and test rigs)
- Collaborate with other engineers and technicians over a wide range of disciplines, including propulsion, manufacturing, flight software, GNC, and vehicle systems engineering to develop prototypes and products
Minimum Requirements
- Bachelor's degree in mechanical engineering, aerospace engineering, or other related engineering discipline
- Knowledge of working with fluid systems, mechanical systems, and instrumentation
- Valid driver’s license and a clean driving record
- Available to work overtime and weekends
- Strong verbal and written communication skills and ability to read and provide feedback on technical documents
- Willing and able to travel to support propulsion/flight test needs
- Must be willing and able to obtain and maintain a security clearance
Preferred Experience
- Hazardous operations experience
- Knowledge of engineering standards and best practices such as ASME B31.3, ASME BPV Code Section VIII
- Knowledge of Command and Control systems and hardware
- Experience in test, evaluation, and operation of propulsion or turbomachinery systems
- Experience with operation and integration of high pressure fluid systems (tubing/piping, instrumentation, controls)
Working Conditions and Physical Requirements
Safety is paramount, with stringent protocols ensuring a secure workplace. Collaboration is key, providing opportunities to work closely with a skilled team dedicated to innovation.
This position requires the candidate be able to:
Work at elevated heights and in confined spaces.
Lift up to 50 lbs. unassisted.
Stoop, bend, crawl, and maneuver in tight spaces.
Work outdoors, in all weather conditions.
U.S. EXPORT CONTROL COMPLIANCE STATUS
The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62 or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.
EQUAL OPPORTUNITY
Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.