Propulsion Test Engineer Intern - (Fall 2026)

JacksonvilleInternentry

QA & TestingTest Engineer

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Overview

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.

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QA & TestingTest Engineer

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.

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)

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.

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.