QA Inspector

Company Overview

Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable local power generation technology, the Mainspring Linear Generator. Commercial, industrial, and utility leaders are choosing Mainspring over traditional options like engines, turbines, and fuel cells to quickly and reliably deliver local power for EV charging, commercial facilities, data centers, and grid‑scale operations. The Mainspring Linear Generator is fuel flexible, ramps up and down to meet demand, and utilizes a flameless reaction with near‑zero NOx emissions.

Backed by top‑tier investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst, Mainspring designs, manufactures and delivers its products to customers across the U.S. today, and we’re quickly scaling for international expansion.

Inspired by our vision of the affordable, reliable, net‑zero carbon grid, Mainspring is rapidly expanding within the $816B global electricity equipment market, and we’re hiring the best talent to meet growing customer demand around the globe. We welcome a broad range of backgrounds, experiences, and talents to bring fresh perspectives and ongoing innovation to our customers.

We are looking to build relationships with people who share our values:

Pragmatic Optimism. Building a new category of world‑class power generation requires the optimism of ambition and creativity, balanced with practicality to solve problems efficiently. The challenges that arise are opportunities for growth.

Excellence without Ego. We bring expertise and commitment to creating the best customer experience, from sales to deployment and service, just as we apply deep technical rigor to building and delivering world‑class products. We strive for excellence and behave as leaders with the humility to acknowledge our challenges, both collectively and as individual contributors.

Proactive Collaboration. The integration and cross‑disciplinary nature of Mainspring’s business requires intentionally seeking out others who bring different skills, perspectives, and priorities. Our culture of inclusion and respect extends beyond our team to interactions with our partners and customers.

More information can be found at

Mainspring is growing rapidly to scale up production rate. Quality is a crucial element to the success of our mission. The Manufacturing Quality Team is responsible for improving and ensuring product quality. The QA Inspector will be responsible for drafting incoming inspection plans, writing, testing and publishing CMM inspection programs. The successful candidate is highly organized and communicative, experienced with the use of CMM equipment and operating software, and thrives in a nimble fast‑paced environment that includes both R&D and manufacturing.

• Produce revision controlled CMM Programs
• Perform conformity inspection on incoming parts for production purpose.
• Perform R&D part inspection and provide reports to Engineering.
• Integrate Inspection results into data analytic tools
• Document non‑conforming records with the specific conformance acceptance condition that was not met
• Help facilitating the Material Review Board (MRB) for disposition by Design Engineering
• Provide dimensional results for MRB to make disposition decision
• Review suppliers inspection results and provide support to R&D
• Improve and maintain the inspection area and keep inspection equipment calibrated and certified.
• Generate ideas on improving accuracy and precision of dimensional inspection
• Refine and improve the conformance system by generating ideas with Quality Engineering
• Help build Quality team’s reputation by providing facts and evidence to leadership
• Provide guidance to less experienced Quality Technicians
• Support internal and external audit

• Minimum of 5 years experience as a component QA inspector, using CMM equipment tools to inspect part dimensions in a fast paced and high growth environment (industrial and/or automotive a plus)
• Knowledge and experience with manufacturing processes like CNC, casting, welding and metal fabrication
• The position will require up to 10%…