Propulsion Development Engineer
Hermeus· Engineering – Engines and Propulsion
Los Angeles, CA$91.8k - $187.5kFull-timePosted 5mo ago
About the role
Development Engineer on the Propulsion team focused on advancing engine hardware through rapid, test-driven iteration, owning engine test campaigns and translating results into actionable engineering improvements.
Responsibilities
- Own development engine test campaigns from planning through execution and post-test analysis
- Define, author, and refine engine test plans, procedures, and setpoints aligned with program objectives
- Support and make decisions during live test operations, including hot-fire and subsystem testing
- Identify, diagnose, and resolve test-related engine issues across hardware, instrumentation, and procedures
- Standardize and improve test data review, reduction, and reporting processes
- Develop Python-based tools for data processing, visualization, and automated analysis
- Translate test data into clear engineering insights, including performance characterization and root cause analysis
- Drive post-test reviews and ensure actionable outcomes are captured and executed
- Participate in hands-on engine build, integration, and test setup activities
- Author and maintain development engine work instructions, test procedures, and technical documentation
- Generate, track, and resolve engineering issues through ticketing systems
- Collaborate cross-functionally with design, manufacturing, avionics, and test teams to resolve system-level challenges
- Ensure proper sensor selection, instrumentation setup, and data integrity during test campaigns
- Contribute to continuous improvement of test infrastructure, tooling, and development processes
Qualifications
- Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related discipline
- Hands-on experience with hardware build, integration, or test operations
- Experience developing or executing engineering test plans and procedures
- Proficiency in Python for data analysis and automation
- Strong understanding of sensors, instrumentation, and diagnostic techniques
Skills
Required:Python for data analysis and automationEngineering test planning and procedures
Benefits
- Health & Wellness: 100% employer-paid healthcare and pet insurance
- Financial: Competitive pay, stock options, 401(k) retirement plan, and potential year-end bonuses
- Time Off: Paid parental leave, 12 federal holidays, unlimited PTO for exempt employees, and generous accrued PTO for non-exempt employees
- Office Perks: Weekly paid office lunches and fully stocked breakrooms
Last updated Oct 21, 2026. Interested? Apply on the company site.
About Hermeus
Building the world's fastest aircraft.
Building the world's fastest aircraft.
aerospacehigh-speed aircrafthypersonic aircrafthigh-Mach aircraft
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