Senior Supplier Quality Engineer

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 Cayalyst 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:

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.

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.

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

While Mainspring is growing rapidly to scale production of its linear generators, quality is a crucial element to the success of our mission. The Supplier Quality Team is responsible for supplier selection and performance monitoring as it relates to key supplier delivery and quality requirements.

You will refine and execute improvements to the supplier audit and qualification process in concert with Supply Chain, Engineering and the other members of the QA team. You will work to develop and execute quality plans by utilizing the Advanced Product Quality Planning (APQP) process, including working with other tools such as Production Part Approval Process (PPAP) and root-cause analysis on a regular basis.

You are highly organized, communicative, and will thrive in a nimble, fast-paced environment that includes Engineering, R&D, Operations and Supply Chain.

• Develop and maintain trusting relationships with the assigned suppliers as well as our internal stakeholders
• Assess supplier capability via site visits and process audits for compliance to regulations, agreements, standards, and documented processes.
• Collaboratively qualify processes with Suppliers, Design Engineers, Supplier Quality Team and Incoming Inspection Team
• Actively participate in and lead new product development teams as it relates to supplier quality to support product and process design and development activities via leading the supplier risk management process
• Support the review/approve product and process change control documentation and specifications as it relates to assigned suppliers

• Bachelor’s degree in Engineering or related discipline
• 5+ years of Quality Engineering experience in a fast paced and high growth environment (industrial and/or automotive a plus)
• 1+ years of experience in one of these areas: machining, welding, casting, coating (automotive or aerospace quality…