Test Engineer
hermeus
Los Angeles, CA
Posted Apr 7, 2026
- Full-time
- Test
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 Test Engineer at Hermeus, you will play a pivotal role in developing, building, analyzing and operating test assets for our hypersonic vehicles. This position offers a unique opportunity to work on groundbreaking technology in a fast-paced and collaborative environment. As part of this team, you will have the opportunity to work on a broad range of vehicle subsystems including hydraulic system, fuel system, mechanisms, high-voltage, mechanisms, airframe structural, and more! ### 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. ### Requirements: - 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 ### Preferred Skills and Experience: - Excellent problem solving skills and attention to details - Ability to think of creative, outside-the-box solutions to problems - Familiarity with a CAD software tool (NX preferred) - Strong communication and collaboration abilities - Self-motivated and able to work effectively in a dynamic, fast-paced environment - Should enjoy working on a team and be able to work efficiently and effectively with others, even during stressful situations