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Senior Mechanical Engineer - Alignment
Mainspring EnergyMenlo Park, United Statesfull_timeVerifiedPosted 11 Mar 2025
About the role
Company Overview
Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable onsite power generator, 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 technology with near-zero NOx emissions.
Backed by top-tier investors such as Khosla Ventures, Bill Gates, American Electric Power, and Lightrock, 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
Job Overview
Mainspring Energy is seeking a talented Senior Mechanical Engineer to join the team responsible for the alignment of critical components for our innovative Linear Generator technology. This challenging role requires creativity and a broad range of skills to make a significant impact on our clean energy solution for a part that is critical to the success of the company.
Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable onsite power generator, 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 technology with near-zero NOx emissions.
Backed by top-tier investors such as Khosla Ventures, Bill Gates, American Electric Power, and Lightrock, 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
Job Overview
Mainspring Energy is seeking a talented Senior Mechanical Engineer to join the team responsible for the alignment of critical components for our innovative Linear Generator technology. This challenging role requires creativity and a broad range of skills to make a significant impact on our clean energy solution for a part that is critical to the success of the company.
Responsibilities
- Lead essential development efforts that align and maintain alignment of major components, including design, 3D CAD modeling (Solidworks), engineering analysis (FEA tools like ANSYS), testing, root cause investigation and comprehensive documentation
- Collaborate with cross-functional teams (Electrical Engineering, Controls, Manufacturing, Suppliers) to ensure seamless subsystem integration, performance, and new product introduction (DFM/DFA, work instructions, tooling/fixtures)
- Plan and execute rigorous verification and validation testing to ensure designs meet all requirements (functional, durability, safety, reliability)
- Provide technical guidance to junior engineers and technicians, and contribute to the continuous improvement of engineering processes, tools, standards, and best practices
- Stay current on advancements in mechanical engineering relevant to power generation, and identify opportunities to reduce cost, improve performance, and increase reliability as Mainspring scales its technology
- Uphold and further Mainspring's mission to create clean, affordable, and reliable power generators that accelerate the world's transition to a sustainable energy future
Education and Experience
- Bachelor's or Master's degree in Mechanical Engineering or similar field
- 6+ years as a professional mechanical design engineer
- Delivered products as a technical lead through full design lifecycles from concept to manufacturing support, preferably in industrial equipment, power generation, or electromechanical machines
- Self-starter with a proven ability to deliver functional designs in a rapid development environment and a track record of innovation and continuous improvement
Technical Skills
- Proficiency in 3D CAD modeling (SolidWorks preferred), engineering drawing creation (GD&T), and tolerance stack analysis. Experience with PDM or similar CAD version control systems.
- Knowledge of mechanical design principles, materials, and manuf
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