Manufacturing Engineer Intern

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. H3X is looking to hire a manufacturing engineering intern to support the low volume production line across all the HPDM product lines. This is not an ordinary internship- you will be given the full responsibility of a manufacturing engineer. The production team is rapidly deploying new processes and improvements to meet the growing demand for the HPDM product lines. A high degree of self-motivation and responsibility is required as you will be given significant freedom and will be directly responsible to produce your assigned parts. We are looking to hire a full time intern with a focus on the Fall 2026 Semester for a minimum of 12 weeks, but open to extended periods as well based on candidate availability.

Responsibilities

• REQUIREMENTS / CONCEPT
• Work with design engineers to establish production requirements
• Conceptualize new and novel approaches to solve manufacturing problems
• Propose new materials, fixture concepts, equipment or other
• DESIGN AND ANALYSIS
• Design tools and fixtures to improve manufacturing processes
• Analyze recurring manufacturing discrepancies and implement solutions
• Collaborate with design engineers on implementation of manufacturing feedback
• PRODUCTION VALIDATION AND INTEGRATION
• Execute first application and testing of new fixtures and process improvements
• Interface with manufacturing engineers and assembly technicians
• Create, implement, and revise process plans and mBOMs to support production
• Lead LEAN manufacturing processes in support of continuous improvement initiatives
• Required Qualifications
• Pursuing a Bachelor's or Graduate Degree in Mechanical Engineering or similar
• GPA of 3.0 or higher
• Hands-on experience assembling mechanical systems
• SolidWorks proficient (or similar)
• Excellent written and verbal communication skills
• Organized and strong attention to detail
• Exceptional understanding of engineering fundamentals
• Action biased, results-driven mentality
• Willingness to learn quickly

Requirements

• Experience with manufacturing processes (machining, assembly, & composites)
• Experience with producing 2D part drawings and GD&T
• Experience with inspection methods and metrology equipment
• Benefits & Compensation
• $23.00 - $37.00 / hr based on school level & experience
• Relocation stipend
• Monthly company events
• Friday Team Lunch
• The Company
• 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.

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