Manufacturing Engineer (Assembly)

Company: H3X Technologies
Location: Louisville
Posted on: February 14, 2026

Job Description:

Job Description Job Description 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 a Manufacturing Engineer to support production lines across all the HPDM products. The production team is rapidly deploying new processes and improvements to meet the growing demand for the HPDM products. A high degree of self-motivation and responsibility is required since this role will be given significant freedom and will be directly responsible for the production of a multitude of parts. KEY RESPONSIBILITIES: Work with design engineers to establish production requirements. Conceptualize new and novel approaches to solve manufacturing problems. Design manufacturing tools and fixtures in SolidWorks. Analyze recurring manufacturing discrepancies and implement solutions. Collaborate with design engineers on implementation of manufacturing feedback. Conduct PDRs and CDRs for sub-systems for which you are responsible. Execute first application and testing new fixtures and process improvements. Interface with production operations team and assembly technicians. Create and implement production travelers. Commission and scale manufacturing processes to meet production rate requirements. ADDITIONAL RESPONSIBILITIES: Identify workplace hazards and implement safe processes. Maintain testing and production equipment when necessary. Source hardware for manufacturing systems as needed. Collaborate with other manufacturing and design engineers to identify, improve, and expand in-house manufacturing capabilities. REQUIRED QUALIFICATIONS: Bachelor’s or Graduate Degree in Mechanical Engineering or similar. 4 years of experience as a Manufacturing Engineer. 5 years of CAD software experience (SolidWorks preferred). Thorough understanding of mechanical drawings. Superior knowledge of GD&T and part inspection. Excellent written and verbal communication skills. Organized and strong attention to detail. Exceptional understanding of engineering fundamentals. Vast knowledge of manufacturing processes (machining, assembly, composites, etc). Action biased, results-driven mentality. Willingness to learn quickly. A high degree of emotional intelligence: ability to collaborate closely with coworkers in a respectful and empathetic manner. Fundamentally curious and motivated by first principles Position requires access to CUI/ITAR/EAR controlled information. PREFERRED QUALIFICATIONS: Experience manufacturing electric motors, inverters, or other mechatronic assemblies. Experience around PCBA and wiring harness fabrication and sourcing. Experience developing production automation systems. Experience working in a startup environment COMPANY BENEFITS: Employee equity incentive plan Health insurance: Medical, Vision, Dental, ST & LT Disability, and Life Gym membership stipend (up to $60/month) Epic or IKON Ski/Snowboard Pass (up to $869 provided) Flexible hours (deliverable-based goals) Flexible time off (just need manager approval) Continuing professional education benefit Relocation package Monthly company events 401k program SALARY RANGE: $90,000-160,000/year USD 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.

Keywords: H3X Technologies, Colorado Springs , Manufacturing Engineer (Assembly), Engineering , Louisville, Colorado