Principal Mechanical Engineer: Lead Technical Authority (Onsite)

Mainspring Energy, Inc.

Mainspring Energy, Inc. is seeking a Principal Mechanical Engineer to act as the technical authority for the Linear Generator platform. You will shape long-term technical direction, influence architecture and design principles, and guide high-stakes decisions across multiple teams. This role requires broad technical leadership, autonomy, and the ability to advise senior leadership on long-term risks and opportunities.

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Vacancy posted 2 days ago

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