Job Description

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 infrastructurethat supports our full range of test programs spanning development, operational and certification testing.  

Hermeus is seeking a Senior Propulsion Test Engineer to support the development, integration, and operation of propulsion test systems at our Florida facility. This is a hands-on, high-impact role focused on building test capabilities and executing test campaigns for next-generation hypersonic propulsion systems.

You will work closely with engineers and technicians across multiple disciplines to design test hardware, operate complex test facilities, and ensure safe, reliable, and repeatable performance. This role is ideal for an engineer who enjoys building, troubleshooting, and operating large-scale test systems and wants to be directly involved in advancing high-Mach technology.

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About Hermeus

Hermeus is building Quarterhorse, a Mach 5+ hypersonic aircraft that will radically accelerate air travel. Their reusable turbine-based combined-cycle engines power both commercial and defense applications, with US Air Force contracts to develop autonomous hypersonic platforms.

Senior Propulsion Test Engineer

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