Senior NPI Manufacturing 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 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 Energy seeks a Manufacturing Engineer to join our New Product Introduction (NPI) team. This role involves learning about our novel linear motor design and participating in the development of new manufacturing techniques, tooling, and equipment for deployment at our North American production sites. This role will be critical in ensuring the successful manufacturing of high-precision components and assemblies at scale, focusing on quality, efficiency, and cost optimization.

The ideal candidate will be project-oriented, possess experience in designing electromechanical systems and tooling, be adept at working with complex assemblies, and utilize a data-driven approach to problem-solving. Proficiency in 3D CAD software is required to create mechanical part models and assemblies, as well as to generate 2D detailed drawings for fabrication.

This position necessitates a proactive approach and requires collaborative engagement with our Product Design and Test Engineering teams, Supply Chain, Quality, Manufacturing, and Operations team members.

Key responsibilities encompass the design and development of new manufacturing processes, troubleshooting, fine-tuning, validation, and the deployment of processes and tooling into production. Additional responsibilities include drafting tooling and equipment specifications, project management, managing project scope and schedule, developing process control (SPC) and quality plans, writing work instructions, and conducting training. The incumbent must be capable of resolving complex issues as they arise on the production floor while maintaining a strategic view of the overall objective.

• Create mechanical 3D CAD models and 2D fabrication drawings
• Lead the design of high-precision fixtures, tools, and equipment for electromechanical assembly and testing
• Apply DOE, PFMEA, and other industry-standard tools to identify…