Responsibilities:
- Design, develop, and maintain propulsion test stands and associated infrastructure, including mechanical systems, fluid systems, and instrumentation.
- Execute propulsion and subsystem test operations, including planning, integration, checkouts, and post-test analysis.
- Support the maintenance of existing test equipment, data acquisition systems, and control hardware.
- Generate and review detailed test plans, procedures, and safety documentation.
- Collaborate with propulsion, GNC, software, and vehicle systems engineers to support test article integration and operation.
- Analyze test data to validate performance, identify anomalies, and recommend design or procedural improvements.
- Participate in system readiness reviews, safety walkdowns, and test preparation activities.
- Work with technicians to install hardware, route fluid lines, connect instrumentation, and configure control systems.
- Support root-cause investigations and corrective actions when test failures or anomalies occur.
- Drive continuous improvements in test operations, safety, and reliability processes.
Minimum Requirements:
- Bachelor’s degree in Mechanical, Aerospace, or a related Engineering discipline.
- 7+ years of experience in propulsion test, mechanical systems, or fluid systems design and operation.
- Hands-on experience working with high-pressure, cryogenic, or high-temperature fluid systems.
- Proficiency in reading and creating P&IDs and mechanical drawings
- Experience with data acquisition and control systems.
- Strong understanding of system safety practices and operational discipline in hazardous test environments.
- Excellent analytical, troubleshooting, and problem-solving skills.
- Effective communicator who can work independently within a fast-paced, cross-functional team.
- Valid driver’s license and ability to work extended hours or weekends as required by test schedules.
- U.S. citizenship and ability to obtain and maintain a security clearance.
Preferred Skills and Experience
- Master’s degree in Aerospace, Mechanical, or related field.
- Experience with air-breathing or rocket propulsion systems (turbomachinery, ramjet, scramjet, or hybrid systems).
- Familiarity with ASME B31.3, ASME BPVC Section VIII, and pressure vessel/facility standards.
- Experience with command and control systems, PLCs, and test automation.
- Background in instrumentation calibration, dynamic data collection, and signal processing.
- Experience with facility commissioning or large-scale test system buildouts.
- Hazardous operations or pyrotechnic system experience.
- Familiarity with DOE, DoD, or NASA test safety and operational standards.
Top Skills
What We Do
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.
Utilizing an integrated, hardware-rich, iterative development approach to aircraft design and build, Hermeus aims to deliver advanced air power at a pace not seen in the U.S. since the 1950s. Hermeus’ current Quarterhorse Program is actively unlocking unmanned high-speed flight. One program, four aircraft – each purpose-built to unlock a specific technical challenge, advance learnings, and incrementally de-risk critical technology in the pursuit of hypersonic aircraft.
Today, Hermeus is building its second Quarterhorse vehicle, Mk 2, after having designed, built, and flight tested its predecessor, Mk 1, in 18 months. Capable of reaching speeds of Mach 3+, Quarterhorse Mk 2 will be the fastest uncrewed military aircraft in service for national defense. The final iteration of Quarterhorse, Mk 4, will be capable of transitioning from turbofan to ramjet mode utilizing a Hermeus-developed turbine-based combined cycle (TBCC) propulsion system to achieve sustained speeds of Mach 5+.
Hermeus' approach of build-fly-build lays the groundwork for unlocking hypersonic flight at a pace and cost previously deemed impossible. America needs fast planes fast – and Hermeus is delivering them.
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.
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