Propulsion Engineer Test Intern - (fall 2026)

Propulsion Test Engineering Intern

Hermeus is a high-speed aircraft manufacturer focused on the rapid design, build, and test of high-Mach and hypersonic aircraft for the national interest. Working directly with the Department of Defense, Hermeus delivers capabilities that will ensure that our nation, and our allies, maintain an asymmetric advantage over any and all potential adversaries.

At Hermeus, we are constantly iterating and integrating. We test early and often to minimize technical and program risk. We build the test campaigns that support our full range of test programs spanning development, operational and certification testing.

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.

Hermeus is seeking talented students to join our Propulsion Test team in Jacksonville for the Spring & Summer 2026 semesters.

Fall: Around 16 weeks (September - December)

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.

Minimum 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.

$25 - $33 an hour

The salary information provided is a general guideline only. Hermeus takes various factors into account, including, but not limited to, the position's scope and responsibilities, the candidate's professional background, education and training, essential skills, and market and business considerations, when presenting a job offer.

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.

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.