Core Assembly Jobs in Colorado (NOW HIRING)

About H3X Technologies

H3X is building America's advanced electric motor company, powering next-generation platforms in aerospace, defense, and marine. Our integrated motor drives deliver 12+ kW/kg, roughly 3x the power density of competing solutions. We're now scaling to megawatt-class systems, with customers working on everything from supersonic aircraft to turbine power generation for AI datacenters.

Our team brings together engineers and operators from aerospace, defense, and motorsports, with deep expertise in electric machines, power electronics, material science, and advanced manufacturing. We're a small, fast-moving team doing hard engineering that matters, and we're looking for people who want to do the best work of their careers alongside us.

About the role

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.

What you will do:

• 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.

What we are looking for:

• 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.

Preferred Experience

• 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.

Why H3X

Joining H3X means working on hard, meaningful problems with a skunkworks-style team that's laser-focused on building exceptional products. We're deeply vertically integrated and have a very tight design-build-test loop, which lets us move from concept to hardware at unmatched speed. We've gone from idea to shipping product in less than two months.

We're a small, highly skilled team where everyone carries real responsibility and shares an extreme ownership mentality. We stay focused on the critical path, keep bureaucracy to a minimum, and structure everything around delivering results. You'll learn and grow faster here than you would anywhere else.

You'll work alongside world-class engineers and builders who are pioneering electric motor technology at scale on some of the coolest programs in the industry, from supersonic aircraft to power generation for AI datacenters. If you want your contributions to be visible and your work to directly shape American reindustrialization, you'll feel at home here.

Compensation

• Hourly Compensation Range: $22.00/hour - $34.00/hour

Benefits

Our team provides robust benefits including medical, vision, dental, disability, & life insurance offerings, employee equity incentive program, & 401k program. Additional benefits include our gym membership stipend and outdoor recreation reimbursement program. We have an execution based culture, with flexible hours, 80 hours PTO accrued per 2000 hours worked, 12 company holidays (including our company ski trip), monthly company events, and weekly catered team lunch on Fridays.

Our Values

Be Relentless Never give up, persevere until the job is done. Run toward problems, not away from them. Grit is key.

Gain insight through humility Approach every challenge with a learner’s mindset. Stay open to feedback, listen to others, and deepen your understanding through self-awareness. Put your ego aside and seek the truth in every discussion, especially when leading others.

Distill & Simplify Eliminate unjustified complexity and simplify wherever possible, whether in requirements, design, or execution. Use first principles thinking to distill every problem to its essence. Less is more.

Find your flow Engage fully and work with intention. Find the rhythm and deep focus that lets you do your best work. Discover your Ikigai - where your strengths, passions, and purpose meet and drive your personal fulfillment and team success. That is when the magic happens.

SEND (Solve, Evolve, Nail It, Deliver) Devise the best solution with the information at hand, test it, learn from it, and iterate quickly until you nail it. Nothing works perfectly the first time, but you should never hit the same issue twice. Stay laser-focused on solving customer problems and delivering solutions that create real value.

Equal Opportunity Employer

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.