Mechanical Integration Engineer

Louisville, CO
Full Time
Mid Level

JOB PURPOSE:

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 and are 3X lighter than competitors’ systems.  

About the Role: H3X is looking to hire an experienced Mechanical Integration Engineer to develop application-specific systems and assemblies for H3X’s HPDG products, from prototype to low-volume production. Candidates should be experienced in the entire product development cycle including requirements definition, design and analysis, and test and validation. There are several projects that we are actively engaged on with customers including high power density gensets, battery-electric powerplants, and specialized propulsion systems. This role will be a key part of the core engineering team and will have a direct impact on the trajectory of the company by helping to land multi-year high volume contracts with our customers.
 

Key Responsibilities 

  • Establish requirements for complete systems.
  • Identify optimal conceptual designs and potential architectures that meet program requirements.
  • Design parts and assemblies utilizing SolidWorks.
  • Generate engineering drawings via SolidWorks using GD&T standards, including the creation of tolerance. stack-ups to identify critical design characteristics.
  • Conduct PDRs and CDRs.
  • Design systems for application-specific cooling, electrical, and mechanical integration.
  • Compile Bill of Materials and source components for assemblies.
  • Work with technicians to help build initial prototypes.
  • Create work instructions for first articles.
  • Create Design Validation Plan and Report (DVP&R) for systems.
  • Execute testing and characterization of prototypes.
  • Identify root causes of failures that occur in the prototyping process.
  • Post-process test results and make design modifications to meet the highest level of reliability and performance.
  • Integrate systems into customer applications.
  • Support future production builds and complete system tests.
  • Maintain testing and production equipment where necessary.
     

Required Qualifications

  • High intelligence, high energy, and high integrity.
  • Bachelor’s or higher in Mechanical Engineering or equivalent.
  • 2+ years of professional experience with mechanical system design and integration.
  • High level of proficiency with SolidWorks and ANSYS.
  • Exceptional knowledge of manufacturability and various manufacturing processes including CNC machining, sheet metal fabrication, and additive manufacturing.
  • 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 designing flight critical systems.
  • 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.
  • Fundamentally curious and motivated my first principles.
  • Ability to access export-controlled data.
     

Preferred Qualifications 

  • Experience with electric and hybrid vehicle architecture and design considerations.
  • Experience with reverse engineering assemblies.
  • Experience with engine or propulsion systems.
  • Taking designs from concept to production in automotive or aerospace industries.
  • Familiar with lean R&D design and manufacturing.
  • Experience with designing and testing DO-160G / MIL-810G / or other environmental specifications.
     

Salary Range: $90,000 - $120,000 USD

Company Benefits

  • Employee equity incentive plan
  • Health insurance: medical, vision, dental, short-term disability, and life
  • Gym membership stipend (up to $60/month)
  • Flexible hours (deliverable-based goals)
  • Flexible time off (just need manager approval)
  • Continuing professional education benefit
  • Relocation package
  • Epic or IKON Ski/Snowboard Pass (up to $869 provided)
  • Bi-weekly 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. H3X takes pride in their multidisciplinary approach, relentless dedication, high capital efficiency, and Skunkworks-style execution. 

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.

Share

Apply for this position

Required*
Apply with Indeed
We've received your resume. Click here to update it.
Attach resume or Paste resume
Attach resume as .pdf, .doc, .docx, .odt, .txt, or .rtf (limit 5MB) or Paste resume

Paste your resume here or Attach resume file

To comply with government Equal Employment Opportunity and/or Affirmative Action reporting regulations, we are requesting (but NOT requiring) that you enter this personal data. This information will not be used in connection with any employment decisions, and will be used solely as permitted by state and federal law. Your voluntary cooperation would be appreciated. Learn more.
Invitation for Job Applicants to Self-Identify as a U.S. Veteran
  • A “disabled veteran” is one of the following:
    • a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or
    • a person who was discharged or released from active duty because of a service-connected disability.
  • A “recently separated veteran” means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.
  • An “active duty wartime or campaign badge veteran” means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.
  • An “Armed forces service medal veteran” means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.
Veteran status


Voluntary Self-Identification of Disability
Voluntary Self-Identification of Disability Form CC-305
OMB Control Number 1250-0005
Expires 04/30/2026
Why are you being asked to complete this form?

We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years.

Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp.

How do you know if you have a disability?

A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability. Disabilities include, but are not limited to:

  • Alcohol or other substance use disorder (not currently using drugs illegally)
  • Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS
  • Blind or low vision
  • Cancer (past or present)
  • Cardiovascular or heart disease
  • Celiac disease
  • Cerebral palsy
  • Deaf or serious difficulty hearing
  • Diabetes
  • Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders
  • Epilepsy or other seizure disorder
  • Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome
  • Intellectual or developmental disability
  • Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD
  • Missing limbs or partially missing limbs
  • Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports
  • Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS)
  • Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities
  • Partial or complete paralysis (any cause)
  • Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema
  • Short stature (dwarfism)
  • Traumatic brain injury
Please check one of the boxes below:

PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.

You must enter your name and date
Human Check*