<div><h3><strong>About Mainspring</strong></h3><p>Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.</p><p>The <a href="https://www.mainspringenergy.com/company"><strong>core values</strong></a> that ground our work, guide our decisions, and connect us together:</p><div><ul><li>Pragmatic Optimism</li><li>Excellence without Ego</li><li>Proactive Collaboration</li></ul></div></div><div><br></div><div><strong style="font-size:18px;">Job Overview</strong></div><div> </div><p><span style="font-size:16px;color:#000000;">Do you have a knack for design of complex mechanical systems? Have you ever invented a tool or changed a process just to make routine installation or service faster and easier? If you're driven by solving real-world design challenges, especially within state of the art mechanical power generation equipment, then this role is built for you. </span></p><p> </p><div><p><span style="font-size:16px;color:#000000;">Mainspring Energy is seeking a Continuous Improvement Engineer with a focus on mechanical design to lead product improvement efforts across our field and production systems. You will work on-site at a contract manufacturer, addressing design and manufacturing issues at their root. You will redesign critical components for durability and ease of service, integrate your findings back into the development process to ensure the long-term reliability and manufacturability of our products.  You will support manufacturing with a hands-on approach to solve complex mechanical problems working directly with the product to take measurement, perform testing, and support pilot efforts to develop rework/retrofit processes. </span></p><p><span style="color:#000000;">You will redesign critical components for durability and ease of service, and integrate your findings back into the development process to ensure the long-term reliability and manufacturability of our products.  </span></p><span style="font-size:16px;"><br></span></div><br><br><h3>Core Responsibilities</h3><ul><li>Lead the root cause analysis of mechanical failures using data from diagnostics, hands-on testing, and fundamental analysis of bolted joints or material fatigue life</li><li>Redesign or re-engineer components, fasteners, or assemblies to eliminate failures, reduce costs, or improve serviceability</li><li>Work closely with design engineering, manufacturing, and quality teams to ensure that changes are thoroughly tested and validated with short feedback cycles</li><li>Collaborate with NPI, manufacturing quality, and supply chain teams to ensure solutions are optimized for production, vendor capabilities, and field service</li><li>Predict and prevent failure modes by applying a deep understanding of mechanical system interactions, tolerance stack-ups, and real-world use conditions</li><li>Implement feedback loops from field issues into design standards and engineering processes to continuously improve product quality and reduce recurrence</li><li>Create and manage internal improvement systems that embed learnings into manufacturing process flow and future design development efforts</li><li>Support the development of service tooling, testing fixtures, or diagnostic aids as needed for improved deployment and serviceability</li><li>Travel to HQ in Menlo Park, CA required once per quarter</li></ul><h3>Qualifications</h3><ul><li>BS + 6 years, or MS + 5 years in industry roles with a focus on mechanical design</li><li>Hands-on experience with mechanical design, including analysis of bolted joints, stress analysis, and structural integrity</li><li>Proven ability to use data-driven root cause analysis to solve complex, cross-functional design issues</li><li>Experience addressing and resolving field and production issues</li><li>Knowledge of DFM/DFA principles and quality system tools (PFMEA, 8D, CAPA, etc.)</li><li>Deep understanding of tolerance stack-ups and the use of CMMs in inspection processes</li><li>Familiar with manufacturing processes including tube swaging, crimping, potting, stamping, sheet metal, hydroforming, welding, machining, and fabrication</li><li>Proficient in SolidWorks or a comparable CAD package; PDM experience preferred</li><li>Experience with structural FEA and/or is a plus</li><li>A passion for building robust, field-ready solutions with high reliability and serviceability</li></ul><h3>Why Join Us?</h3><ul><li>Directly influence the reliability and field performance of mission-critical mechanical systems</li><li>Collaborate with top-tier engineering teams in a fast-paced and supportive environment</li><li>Be part of an innovation-driven company working on impactful technologies</li><li>Competitive compensation and a full benefits package</li><li>Opportunities for technical leadership and long-term growth</li></ul><br><div><span style="font-size:16px;">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.</span></div><div> </div><div><span style="font-size:16px;">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.</span></div><div> </div><div><span style="font-size:16px;">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.</span></div>

<p class="text-steel f-b1 md-max:mb-d">At Mainspring we believe the fastest path to the net-zero carbon grid is vastly increasing the amount of solar and wind power while building a supporting clean energy system that ensures affordability and multi-day, cross-season resilience. Getting there requires flexible, scalable, local technologies that can adapt to the shifting grid landscape &ndash; including the transition from natural gas to renewable fuels like biogas, green ammonia, and green hydrogen.</p>
<div>
<p class="text-steel f-b1">The Mainspring Linear Generator delivers an unmatched level of flexibility for the transition ahead. It&rsquo;s local so you can site where power is needed, it&rsquo;s dispatchable so you can ramp up and down to complement renewables, and it&rsquo;s fuel-flexible so you can operate on the cleanest fuels available today and in the future. Our products are already at work at Fortune 500 customer sites, accelerating the arrival of the net-zero carbon grid.</p>
</div>

Senior Mechanical Engineer – Continuous Improvement for Mechanical Design & Quality Control

<div><h3><strong>About Mainspring</strong></h3><p>Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.</p><p>The <a href="https://www.mainspringenergy.com/company"><strong>core values</strong></a> that ground our work, guide our decisions, and connect us together:</p><div><ul><li>Pragmatic Optimism</li><li>Excellence without Ego</li><li>Proactive Collaboration</li></ul></div></div><div><br /></div><div><strong>Job Overview</strong></div><div> </div><p><span>Do you have a knack for design of complex mechanical systems? Have you ever invented a tool or changed a process just to make routine installation or service faster and easier? If you're driven by solving real-world design challenges, especially within state of the art mechanical power generation equipment, then this role is built for you. </span></p><p> </p><div><p><span>Mainspring Energy is seeking a Continuous Improvement Engineer with a focus on mechanical design to lead product improvement efforts across our field and production systems. You will work on-site at a contract manufacturer, addressing design and manufacturing issues at their root. You will redesign critical components for durability and ease of service, integrate your findings back into the development process to ensure the long-term reliability and manufacturability of our products.  You will support manufacturing with a hands-on approach to solve complex mechanical problems working directly with the product to take measurement, perform testing, and support pilot efforts to develop rework/retrofit processes. </span></p><p><span>You will redesign critical components for durability and ease of service, and integrate your findings back into the development process to ensure the long-term reliability and manufacturability of our products.  </span></p><span><br /></span></div><br /><br /><h3>Core Responsibilities</h3><ul><li>Lead the root cause analysis of mechanical failures using data from diagnostics, hands-on testing, and fundamental analysis of bolted joints or material fatigue life</li><li>Redesign or re-engineer components, fasteners, or assemblies to eliminate failures, reduce costs, or improve serviceability</li><li>Work closely with design engineering, manufacturing, and quality teams to ensure that changes are thoroughly tested and validated with short feedback cycles</li><li>Collaborate with NPI, manufacturing quality, and supply chain teams to ensure solutions are optimized for production, vendor capabilities, and field service</li><li>Predict and prevent failure modes by applying a deep understanding of mechanical system interactions, tolerance stack-ups, and real-world use conditions</li><li>Implement feedback loops from field issues into design standards and engineering processes to continuously improve product quality and reduce recurrence</li><li>Create and manage internal improvement systems that embed learnings into manufacturing process flow and future design development efforts</li><li>Support the development of service tooling, testing fixtures, or diagnostic aids as needed for improved deployment and serviceability</li><li>Travel to HQ in Menlo Park, CA required once per quarter</li></ul><h3>Qualifications</h3><ul><li>BS + 6 years, or MS + 5 years in industry roles with a focus on mechanical design</li><li>Hands-on experience with mechanical design, including analysis of bolted joints, stress analysis, and structural integrity</li><li>Proven ability to use data-driven root cause analysis to solve complex, cross-functional design issues</li><li>Experience addressing and resolving field and production issues</li><li>Knowledge of DFM/DFA principles and quality system tools (PFMEA, 8D, CAPA, etc.)</li><li>Deep understanding of tolerance stack-ups and the use of CMMs in inspection processes</li><li>Familiar with manufacturing processes including tube swaging, crimping, potting, stamping, sheet metal, hydroforming, welding, machining, and fabrication</li><li>Proficient in SolidWorks or a comparable CAD package; PDM experience preferred</li><li>Experience with structural FEA and/or is a plus</li><li>A passion for building robust, field-ready solutions with high reliability and serviceability</li></ul><h3>Why Join Us?</h3><ul><li>Directly influence the reliability and field performance of mission-critical mechanical systems</li><li>Collaborate with top-tier engineering teams in a fast-paced and supportive environment</li><li>Be part of an innovation-driven company working on impactful technologies</li><li>Competitive compensation and a full benefits package</li><li>Opportunities for technical leadership and long-term growth</li></ul><br /><div><span>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.</span></div><div> </div><div><span>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.</span></div><div> </div><div><span>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.</span></div>

Senior Mechanical Engineer – Continuous Improvement for Mechanical Design & Quality Control

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Mainspring Energy

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