Hermeus

Propulsion Test Intern - Spring 2026

Reposted 3 Days Ago

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Jacksonville, FL

In-Office

Internship

Aerospace • Hardware • Transportation

Our mission: radically accelerate air travel.

The Role

Assist in designing, setting up, and operating propulsion system test stands, monitor test data, and troubleshoot in a hands-on environment.

Summary Generated by Built In

Hermeus is a venture capital-backed aerospace and defense technology company. The business is focused on building high-speed products that sustainably deliver asymmetric advantage to the Department of Defense and allied partners. Utilizing an iterative development approach to aircraft, Hermeus’ high-Mach and hypersonic aircraft aim to deliver capabilities at a pace not seen in the U.S. since the 1950s.

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 2026 semester.

This is a full-time paid internship that will last around 12-16 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.

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.

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.

Top Skills

Engineering Principles

Propulsion Systems

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The Company

HQ: Atlanta, GA

255 Employees

Year Founded: 2018

What We Do

Hermeus is a startup developing hypersonic aircraft to radically accelerate air travel.

At Mach 5, more than twice the speed of the supersonic Concorde, passengers will be able to cross the Atlantic in 90 minutes.

On the path to hypersonic passenger aircraft, Hermeus is partnering with government agencies including the US Air Force and NASA to develop a series of autonomous aircraft that derisk the technology and solve urgent national security challenges. These products provide the data and confidence necessary to certify, produce, operate, and maintain safe and comfortable commercial aircraft.

Hypersonic aircraft have the potential to create trillions of dollars of new global economic growth per year, unlocking significant resources that can be utilized to solve the world’s greatest problems.

Why Work With Us

We prioritize hardware and people. Cutting-edge technology is only made possible by bringing together a world-class team. At Hermeus, you will be challenged – but also empowered. We encourage calculated risks taking and learning from our mistakes. Iteration is the name of the game.