Overview
About Mainspring
Full job description
About Mainspring 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. The core values that ground our work, guide our decisions, and connect us together: Pragmatic Optimism Excellence without Ego Proactive Collaboration
Job Overview Mainspring is seeking a Manager with a focus on designing electrical enclosures and cables while improving functionality and system-level performance. This role will involve not only owning engineering development projects but also taking a leadership role in guiding technical decisions and influencing the design process across teams. You will work with cross-functional teams to ensure that key electrical and mechanical subsystems meet challenging technical requirements from concept through manufacturing launch. You will directly manage engineers, providing leadership while ensuring that all team members work towards a cohesive project goal. Ideal candidates will have a strong combination of technical expertise, leadership abilities, and the drive to solve complex problems in a collaborative environment.
Lead ideation and design reviews to develop innovative solutions that enhance performance and reduce cost of the Linear Generator and its electrical subsystems
Own the structure, layout, optimization, prototyping, testing, and deployment of electrical enclosures and harnesses
Partner with Electrical, Reliability, Test, NPI, Manufacturing, and supplier teams to define design direction, validate solutions, and meet project milestones
Oversee execution by setting requirements and coordinating across disciplines to maintain cohesive technical direction
Manage and mentor engineers, guiding technical decisions, setting priorities, and supporting professional growth
Proactively balance timelines, resources, and risks to ensure consistent delivery on key engineering initiatives
Degree: BS or MS in Mechanical, Electrical, or related engineering field with 11 years of industry experience
Proven ownership of electrical enclosure and cable designs, with experience influencing cross-functional teams
Deep expertise in sheet metal, mechanical–electrical integration, and design for manufacturability
Strong foundation in electrical principles, thermal modeling, and system-level design
Proficient in SolidWorks and PDM; experience with CFD/FEA tools (e.g., Ansys) is a plus
Demonstrated ability to make technical trade-offs, guide design direction, and deliver complex systems
Passion for mentoring engineers and advancing high-impact, low-carbon energy technologies
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