About the role
Propulsion Test Engineering Intern - Spring/Summer/Fall 2027 at Hermeus in Jacksonville, FL. On-site, internship, paying $25–$33/hr. Posted September 23, 2026.
Hermeus is a venture-backed defense aviation company reclaiming the lost art of rapid iterative prototyping to build the fastest aircraft in the world today. By prioritizing relentless hardware iteration, we deliver high-speed systems at the pace of the modern battlefield. We work with the Department of War to provide the high-speed capabilities our nation and its allies need to maintain a durable, asymmetric advantage.
#LI-JC3
About The Role:
As a Propulsion Test Engineering Intern, you will gain hands-on experience working with high-performance propulsion systems, supporting engine and system-level testing. You will work closely with engineers and technicians to set up test campaigns, monitor data, and troubleshoot issues, directly contributing to Hermeus’ hypersonic development efforts. Spring: Around 16 weeks (January - April)Responsibilities:
- Work alongside experienced engineers to assist in designing, setting up, and operating test stands, learning the fundamentals of propulsion system testing.
- Help instrument test setups, monitor test conditions, and analyze performance data to contribute to system improvements and troubleshooting efforts.
- Partner with engineers and technicians to refine test processes, enhance safety procedures, and develop a deeper understanding of propulsion systems in a real-world testing environment.
Requirements:
- Practical experience designing, building, and testing vehicles through internships, studies or projects.
- Must be currently enrolled in a STEM program at an accredited college or university (undergraduate student in your third or fourth year of study, or enrolled in a Master's or Ph.D. program).
- Strong interest in propulsion systems and testing.
- Strong understanding of engineering first principles.
- Demonstrated ability to work within cross-functional teams.
- Enthusiasm for aviation and Hermeus's mission.
- Excellent written and verbal communication skills.
- GPA of 3.0 or above.
The hourly rate listed for this internship is intended as a general guideline. Final compensation will be determined based on degree level.
Benefits:
- Time Off: Interns are eligible for 5 days of sick leave and unpaid time off.
- Office Perks: Weekly paid office lunches and fully stocked breakrooms.
#LI-JC3
Prefer to apply yourself? Apply on Hermeus’s site
Quick answers
How much does this Hermeus job pay?
The posted pay is $25–$33/hr.
Where is this job based?
Jacksonville, FL. The role is on-site.
How do you apply?
Apply on Hermeus’s site using the link on this page. With a free Jobmagic account you can see how well you fit first.
Similar jobs
Founders Associate Intern
Clera · San Francisco · On-site
$80k–$110k · 6 hours ago
Electrical Test Engineer
Anduril Industries · Fort Collins, Colorado, United States
10 hours ago
Senior Software Engineer - Credit Commercial Engineering
Marqeta · Remote - Ontario OR British Columbia
17 hours ago