Jobs with Startups
JobsStartupsInvestorsMCP
JobsHermeus

Test Engineer

Hermeus logo

Hermeus

Test Engineer

Los Angeles, CA
On-site
Full-time
Posted Apr 7, 2026
Apply on company site

Opens the original job posting

Test
Subsystem Test
On-site
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 
  • The salary range listed for this role is intended as a general guideline. Final compensation will be determined based on a variety of factors, including role scope and responsibilities, relevant experience, education and training, key skills, market data, and business needs.

    At Hermeus, compensation is only one part of our total rewards package. We offer competitive pay, equity, and a range of benefits designed to support our team.

    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
      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.
    Apply for this role
    Hermeus logo

    Hermeus

    Company profile

    View Hermeus

    Keep exploring

    More roles at Hermeus

    View all roles

    Network Engineer

    Internal Operations · Los Angeles, CA; Atlanta, GA

    Senior Dev Ops Engineer

    Internal Operations · Los Angeles, CA

    Welder

    Manufacturing · Atlanta, GA

    Avionics Technician (contract)

    Manufacturing · Atlanta, GA

    Avionics Electrical Engineering Intern - Spring/Summer 2027

    Internships · Atlanta, GA

    Jobs with Startups © 2026

    Browse startupsBrowse jobsMCP guideAboutPowered by Supabase