Senior Propulsion Test Engineer

Job Description

Job Description

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 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.

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 :

Preferred Skills and Experience

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.

Salary is only one part of our total compensation and benefits package.Hermeus offers competitive salary and equity, unlimited PTO policy, paid parental leave, potential for year-end bonuses, and more!

100% employer-paid health care

401k & Retirement Plans

Unlimited PTO

Weekly Paid Office Lunches

End of Year Bonuses

Fully stocked breakrooms

Stock Options

Paid Parental Leave

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.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.