Test Engineer
Hermeus· Test – Subsystem Test
Los Angeles, CA$114.8k - $180kFull-timePosted 6mo ago
About the role
Test Engineer at Hermeus focused on developing, building, analyzing, and operating test assets for hypersonic vehicle subsystems, with opportunities to work across hydraulic, fuel, mechanisms, high-voltage, airframe structural, and other domains.
Responsibilities
- Lead the design, development, manufacture, implementation, and ongoing maintenance of test assets (including test facilities, fixtures and rigs).
- Design test fixtures, tooling, adapters, panels, and other supporting hardware for test rigs and test setups.
- Develop test plans, procedures, and protocols for a wide range of vehicle subsystems.
- Operate and troubleshoot a wide array of fluid and mechanical systems including pumps, motors, heat exchangers, high voltage components, test fixtures, tooling, standard fluid system components (valves, regulators, accumulators, tubing, fittings, etc).
- Collaborate with cross-functional teams, including engineers and technicians, to ensure effective communication and alignment on testing requirements.
- Maintain detailed records of test procedures, results, and findings, and contribute to comprehensive technical reports.
- Identify opportunities for process improvement, recommend innovative testing methods, and actively contribute to the enhancement of Hermeus’s test infrastructure.
Qualifications
- Bachelor’s degree in mechanical engineering, aerospace engineering, or a related field
- Industry experience owning a project through full lifecycle, particularly in an aerospace or high-performance engineering environment
- Strong working knowledge of fluid mechanics, heat transfer, mechanics of materials, and mechanical design
Skills
Required:Project lifecycle ownershipFluid mechanicsHeat transferMechanical designCommunication & collaboration
Nice to have:CAD (NX preferred)
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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