Soma Capital Portfolio Jobs

Sr. Power Electronics Engineer

H3X Technologies

H3X Technologies

Software Engineering
Louisville, CO, USA
Posted on Tuesday, March 21, 2023

At H3X, we are building the most advanced electric propulsion systems in the world to enable sustainable aviation. At >10 kW/kg power density, 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 aircraft. We have several power classes of motors ranging from 30kW to 3MW and are selling to markets of aviation, aerospace and defense, marine, and specialized ground vehicles.

We are looking to hire an Assembly Technician who will assist in the manufacturing of prototype electric drive systems and facilitate testing. You should be experienced with standard mechanical system assembly and troubleshooting hardware. You will be a key part of the core engineering team and will have a direct impact on the trajectory of the company.
    • Assemble production motor drive systems and sub-systems
    • Handle, mix and work with process chemicals and hazardous materials
    • Assist in maintenance and upkeep of production processing equipment
    • Read, comprehend and perform technical processes as defined by internal work instructions, standards, or other specifications
    • Coordinate with manufacturing & design engineers regarding assembly process issues and improvements
  • High intelligence, high energy, and high integrity
  • High School Diploma or equivalent
  • 2+ years of hands-on mechanical system experience in the following areas:
    • Fastening
    • Epoxy application
    • Component fabrication
    • Wiring harness manufacturing
  • Proficiency in comprehending and improving manufacturing processes
  • Able to troubleshoot assembly issues
  • Able to conceptualize assembly processes from CAD models
  • Excellent written and verbal communicator to effectively share knowledge and build the collective mindshare of the company
  • Organized and obsessive attention to detail: no room for oversight when making flight critical systems
  • Humble and open-minded: willingness to accept feedback, learn, and consistently improve upon yourself and the products for which you will be responsible
  • A high degree of emotional intelligence: ability to collaborate closely with coworkers in a respectful and empathetic manner
  • Fundamentally curious and motivated my first principles
  • This position requires access to CUI/ITAR/EAR controlled information.
  • Experience assembling flight qualified aerospace parts
  • Experience with the following skillsets: Brazing, Soldering, Milling, Turning, Epoxy encapsulation
  • Experience with PCB assembly and wire harnessing
  • Experience developing novel manufacturing processes
  • Experience with GD&T standards (e.g. ASME Y14.5)
  • Experience with AS9100 supply chain practices
  • Experience with tool calibration processes
  • Associates or technical trade degree
PAY RANGE: $22-34/hour USD

  • Employee equity incentive plan
  • Flexible hours (deliverable-based goals)
  • Health insurance: Medical, vision, and dental
  • Mental health coverage
  • Relocation package
  • Epic/ICON Ski & Snowboard Pass provided
  • Stipend for gym membership
  • Company laptop
  • Weekly company happy hours

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 $18M 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.