About the Role
At H3X, we are building the most advanced electric motors in the world for sustainable aviation, marine, industrial, and defense applications. At 12 kW/kg continuous, the HPDM family of integrated motor drives is a step change in electric propulsion technology and removes one of the main barriers blocking widespread proliferation of electric and hybrid aircraft. Our motors range in size from 30 kW to 30 MW, include integrated drives, and are 3X lighter than competitors’ systems.
Mechanical design engineers are responsible for bringing new designs to life from clean sheet concept generation through early prototype testing. Mechanical Design Engineers will work with highly interdisciplinary teams to bring H3X products to life. The engineering team operates like Skunkworks - small, highly technical, and very fast. All mechanical design engineers are given significant design freedom and will be directly responsible for flight-critical parts.
Responsibilities
Requirements/Concept
Establish and document requirements
Conceptualize designs and product architectures that meet program requirements
Present in Concept Design Reviews
Design and Analysis
Design parts and assemblies utilizing SolidWorks
Perform and document mechanical analyses, including hand calculations, FEA, CFD, etc. for structural, modal, thermal, and/or fluid aspects of products
Present in Preliminary and Critical Design Reviews
Generate engineering drawings per ASME and GD&T standards, perform tolerance stack-ups
Prototype and Manufacturing
Compile complete Bills of Materials
Provide technical supply chain support for sourcing hardware
Work with technicians and manufacturing engineers to build initial prototypes
Testing and Validation
Create a Design Validation Plan and Report (DVP&R) for new products and/or subsystems
Support testing execution and characterization of new designs
Interpret test results, identify root-cause of issues, and make design recommendations to meet the highest level of reliability and performance
Integration
Integrate sub-systems into full systems
Support future production builds or complete system tests
Other
Identify workplace hazards and implement safe processes
Maintain testing and production equipment where necessary
Required Qualifications
Bachelor’s or Graduate Degree in Mechanical Engineering or similar.
Hands-on experience assembling mechanical systems.
6+ years of CAD software experience (SolidWorks preferred).
6+ years’ experience with producing 2D part drawings & GD&T.
Experience with static structural FEA (ANSYS preferred) (Familiarity with thermal and modal analysis preferred).
Excellent written and verbal communicator to effectively share knowledge and build the collective mindshare of the company.
Fundamentally curious and motivated by first principles.
Organized and obsessive attention to detail: no room for oversight when designing flight critical systems.
Action biased, results oriented mentality.
Humble and open minded: willingness to accept feedback and learn, consistently improve upon yourself and the product for which you will be responsible.
A high degree of emotional intelligence: ability to collaborate closely with coworkers in a respectful and empathetic manner.
Benefits & Compensation
Annual Salary Target $135,000- $200,000 based on experience (Senior to Staff level)
Employee equity incentive plan
Health insurance: medical, vision, dental, ST & LT disability, and life
Gym membership stipend (up to $60/month)
Outdoor Recreation Reimbursement ($900 annual maximum)
Flexible hours (deliverable-based goals)
Flexible time off (just need manager approval)
Relocation package
Monthly company events
401k program
The Company
H3X Technologies is a U.S.-based manufacturer of electric motors for sustainable aviation, marine, industrial, and defense applications. They have developed a family of integrated motor drives that can scale in power from 30kW to 30MW with power densities as high as 12 kW/kg and best-in-class efficiency. This high performance is enabled by novel scalable core technology and proprietary manufacturing processes for motor stacking, winding, and assembly. The design, manufacturing, and testing of their products is done in-house at their headquarters in Louisville, Colorado.
H3X’s world-class team is composed of experts from Tesla, SpaceX, GE Aviation, and Siemens with deep knowledge in electric machines, power electronics, material science, control systems, and advanced manufacturing. They take pride in our multidisciplinary approach, relentless dedication, high capital efficiency, and Skunkworks-style execution.
H3X has raised over $30M and has backing from top VC firms and strategic firms including Lockheed Martin, Hanwha, Y Combinator, Cubit Capital, Metaplanet, TechNexus, and Liquid 2 Ventures to deploy capital for rapid scaleup.
H3X is poised to become the world’s leading supplier of advanced electric motors by 2030 to drive deep decarbonization in aviation, marine, and heavy industrial applications and unlock next-generation electrified defense technology to strengthen national security.
H3X is an equal opportunity-affirmative action employer and considers all qualified applicants for employment based on business needs, job requirements and individual qualifications, without regard to race, color, religion, sex, age, disability, sexual orientation, gender identity or expression, marital status, past or present military service or any other status protected by the laws or regulations in the locations where we operate.