Propulsion Test Technician

Hermeus; Jacksonville (FL); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Health care benefits

401k & retirement plans

Weekly office lunches

Stock options

Paid parental leave

Flexible PTO

12 federal holidays off

Job summary

Hermeus is a venture‑backed defense aviation company advancing rapid prototyping to deliver the fastest aircraft in the world. As a Propulsion Test Technician, you will develop, maintain, and operate propulsion test hardware to ensure engine reliability and performance for Hermeus aircraft.

This role collaborates in a cross‑functional team, supporting test campaigns, configuring high‑pressure systems, troubleshooting instrumentation, and building test articles.

Qualifications

• High school diploma or associate degree required.
• Experience in hardware assembly, test, or facility/build-out.
• Ability to travel and work overtime/weekends.
• Must be able to obtain and maintain a security clearance.
• Strong written and verbal communication, able to read technical documents.

Responsibilities

• Develop, maintain, and operate propulsion test hardware (including facilities and test rigs).
• Configure high‑pressure, hazardous, fluid systems, connect instrumentation, monitor test video and data.
• Build, test, modify, and inspect test articles.
• Build, modify, and troubleshoot new or existing test equipment (fluid systems, mechanical assemblies, data and control systems, instrumentation).

Skills

Hardware assembly

Test operations

Strong communication

Reading technical docs

Education

High school diploma

Associate degree

Tools

AN (JIC) connections

Swagelok fluid fittings

Electrical systems knowledge

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.

About the Role

As a Propulsion Test Technician, you will be responsible for the development, maintenance, and operation of propulsion system test hardware to ensure the reliability and performance of Hermeus aircraft engines. This position will collaborate in a cross‑functional working environment and contribute to the development of cutting‑edge aerospace technologies.

Responsibilities

• Responsible for the development, maintenance, and operations of propulsion test hardware (including facilities and test rigs).
• Participate in test operations, including configuration of high‑pressure, hazardous, fluid systems, connecting instrumentation, controlling hazardous areas, troubleshooting instrumentation and test hardware, and monitoring test video and data.
• Build, test, modify, and inspect test articles.
• Build, modify, and troubleshoot new or existing test equipment which ranges from fluid systems, mechanical assemblies, data and control systems, and instrumentation.

Requirements

• High school diploma, associate degree, or equivalent certificate.
• Experience in hardware assembly, test, and/or facility/infrastructure build‑out.
• Strong verbal and written communication skills and ability to read and provide feedback on technical documents.
• Experience working in a fast‑paced environment.
• Willing to travel to support propulsion/flight test campaigns.
• Available to work overtime and weekends.
• Must be able to obtain and maintain a security clearance.
• Valid driver’s license and a clean driving record.

Preferred Skills and Experience

• Experience in a startup development environment.
• Experience working in a flight/propulsion development program.
• A&P license is preferred, but not required.
• Hands‑on experience integrating hardware (aerospace or other industry).
• Knowledge/experience with AN (JIC) and Swagelok fluid connections.
• Experience with fabricating and assembling pneumatic and fluid systems, including bending/flaring/assembling of stainless‑steel tubing.
• Knowledge/experience working with electrical components and systems.
• Jet engine test cell experience.

Compensation and Benefits

The compensation 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.

Hermeus offers competitive base pay and equity, generous parental leave, potential for year‑end bonuses, and more!

• 100% employer‑paid health care
• 401k & retirement plans
• Weekly paid office lunches
• Fully stocked breakrooms
• Stock options
• Paid parental leave
• Flexible PTO (exempt) and generous accrued PTO (non‑exempt), plus 12 federal holidays off

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.