JOB PURPOSE:
At H3X, we are building the most advanced electric propulsion systems in the world to enable sustainable electric aircraft. 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 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
.
About the Role: The HPDM motors includes an integrated Silicon Carbide inverter for high frequency, precise motor control. We are looking to hire a Sr. Electrical Hardware Design Engineer who will be in charge of inverter development and taking the design from prototype to production for one of our HPDM IMDs. You should be experienced in the entire product development cycle including requirements definition, design and analysis, and test and validation. You will be a key part of the core engineering team and will have a direct impact on the trajectory of the compan
y.
Key Responsibiliti
- es Requirements definition based on DO-160G and internal/customer specificati
- on.Explore new architectures/technologies that will improve performance, safety, and reliabili
- ty.Schematic and PCB design in Alti
- um.Powerstage component sizi
- ng.Circuit simulation in Simplex, MATLAB/Simulink, LTSpi
- ce.Multiphysics simulation in Ansys Q3D for current density and parasitics analys
- is.Low inductance DC Link desi
- gn.Design for EMC (Y capacitors, EMI filter, groundin
- g).Design for DO-16
- 0G.Supply chain management for DC link capacitors, busbars, PCBAs, SiC devices, sensors, EMC filter, and connecto
- rs.Bill of Materials documentation manageme
- nt.Create assembly files and build instructions for manufacturing team/partne
- rs.Create Design Validation Plan and Report (DVP&R) for sub-systems as well as completed syst
- em.Execute inverter testing and characterization on H3X in-house dynamomet
- er.Post process test results, identify root-cause of potential issues and make design recommendations to meet the highest level of reliability and performan
- ce.Testing for EMC and DO-16
- 0G.Inverter reliability and partial discharge testi
- ng.Support pilot customers with first builds and integration into vehicles. Travel and on-site visits will be requir
- ed.Maintain prototype and testing equipment in H3X l
ab.
Required Qualificati
- ons High intelligence, high energy, and high integr
- ity.Masters or higher in Electrical Engineer
- ing.5+ years of professional experience with power electron
- ics.High level of proficiency with Altium, MATLAB, and PLECS/LTSp
- ice.Excellent written and verbal communicator to effectively share knowledge and build the collective mindshare of the comp
- any.Organized and obsessive attention to detail: no room for oversight when designing flight critical syst
- ems.Humble and open mind: willingness to accept feedback and learn, consistently improve upon yourself and the product you will be responsible
- for.A high degree of emotional intelligence: ability to collaborate closely with coworkers in a respectful and empathetic man
- ner.Fundamentally curious and motivated my first princi
- plesU.S. Person status is required as this position needs to access export-controlled d
ata.Preferred Qualificati
- ons Experience with taking an inverter from concept to production in automotive or aerosp
- ace.Experience with DO-160G / DO-254 / FAA Part 33 qualificat
- ion.Experience with EMI noise mitigation and test
- ing.Understanding of Field Oriented Control and PM
- SMs.SolidWorks profici
ent.
Salary Range: $100,000 - $160,00
0 USD
Company Be
- nefitsEmployee equity incentiv
- e planHealth insurance: medical, vision, dental, short-term disability, an
- d lifeGym membership s
- tipendFlexible hours (deliverable-based
- goals)Flexible-time off (just need manager app
- roval)Continuing professional education b
- enefitMental health co
- verageRelocation p
- ackageEpic/IKON Ski & Snowboar
- d PassBi-weekly company happy
hours
THE C
OMPANY: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, Co
lorado.
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. H3X takes pride in their multidisciplinary approach, relentless dedication, high capital efficiency, and Skunkworks-style ex
ecution.
H3X has raised over $30M with backing from top VC firms and strategic firms, including Lockheed Martin, Hanwha, Y Combinator, Cubit Capital, Metaplanet, TechNexus, and Liquid 2
Ventures.
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.
