Supplier Quality Manager

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:

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

www.mainspringenergy.com

As Mainspring scales production of its linear generators, supplier quality is critical to ensuring reliable, high-volume manufacturing. As Supplier Quality Manager, you will lead the strategy and execution of supplier readiness, performance, and continuous improvement across mechanical, electrical, and complex engineered components. You will refine and drive supplier qualification, audits, and incoming quality systems in close partnership with our Contract Manufacturers, Supply Chain, and Engineering.

You will oversee the development and implementation of APQP deliverables—including PPAP, FAI, and process validation—while ensuring suppliers meet evolving technical and operational requirements. You will guide root-cause analysis, corrective actions, and capability improvements that reduce variability and strengthen process control. We are looking for a strong communicator and leader who thrives in a fast-paced, cross-functional environment and can grow and mentor a high-performing Supplier Quality team.

Qualifications

- Bachelor’s or Master’s degree in Engineering, Quality Management or related

- 7+ years in Supplier Quality Management, preferably customer facing and in clean energy, manufacturing or hardware organizations (industrial and/or automotive a plus)

- Proven success bringing suppliers from prototype-support mode into stable, high-volume production.

- Strong background in process control, APQP/PPAP, FMEA, SPC, and root-cause analysis.

- Six Sigma, Lean, or ASQ Certification and trainings are preferred

- The position will require up to 20% travel to supplier sites

Must-Have Attributes

- Strong leadership, communication, and stakeholder management skills

- You are highly organized, detail oriented, communicative, and you know what operational excellence looks like because you have seen it first hand

- You possess a healthy customer obsession because you learned that delivering results to them is key to success

- You can thrive in structured and unstructured environments and are not dissuaded at the prospect of making hard decisions about what is important and urgent against a backdrop of limited resources

- Numbers and details are your best “friends” because you learned that when you pay attention to them you drive improvement and reduce risk

- You relentlessly seek balance between quality and speed of execution no matter how tough a situation is because you know that you can’t compromise either

Does your experience not meet all of our posted requirements? Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement. At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don’t meet all posted requirements for a particular role, we’d still love to hear from you. Mainspring can sometimes be flexible enough to shift responsibilities for the right person, or otherwise identify open or upcoming roles that may better fit your professional background.

In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

This compensation and benefits information is based on Mainspring Energy's estimate as of the date of publication and may be modified in the future. We generally do not negotiate on salary once we have made an offer. The level of pay within the range will depend on a variety of job-related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. New hires joining the company tend to be paid within the starting base pay range noted above, with opportunities to increase pay over time based on development of additional skills, competencies, and company-specific knowledge.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

This position is

onsite

at our Menlo Park HQ. The salary will be adjusted to reflect local market conditions based on employee location as well as the experience of the employee. Along with the base salary, Mainspring offers pre-IPO stock options + benefits.