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Senior Mechanical Engineer

Noon Energy - Mountain View, CA, United States - In-office - posted 2026-09-26

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Salary: USD 180,000 - 205,000 / annual

Noon Energy is a leader in long-duration energy storage, developing battery technology that stores energy by splitting CO₂, eliminating reliance on rare metals. The company is scaling from megawatt (MW) to gigawatt (GW) production of energy storage products, with a vision of a fully renewable future powered by nature-inspired energy storage using air-abundant molecules rather than rare metals. You will lead the design, development, and continuous improvement of mechanical systems and hardware products, spanning concept through production. This is a hands-on technical role requiring strong analytical capability and technical ownership across engineering disciplines. Key responsibilities include: **Design & Development:** Design and develop mechanical components, assemblies, and systems using CAD tools (SolidWorks, AutoCAD, or equivalent). Own the full product lifecycle including 3D modeling, detailed drawings, P&IDs, PFDs, BOM generation, and equipment specifications. Design and integrate complex process systems incorporating instrumentation such as thermocouples, pressure sensors, and flow meters. Perform engineering analyses including stress, thermal, fluid, and tolerance stack-up analysis. Support development of mechanical systems for demanding high-temperature operating environments. **Documentation & Engineering Standards:** Create and maintain technical drawings, specifications, and engineering documentation in accordance with applicable industry standards and safety requirements. Apply GD&T principles and ensure designs comply with applicable codes and standards. Participate in and lead design reviews, providing technical guidance to the broader engineering team. **Cross-Functional Collaboration:** Collaborate with electrical, manufacturing, product, and other engineering teams throughout the full development cycle. Support prototyping, testing, design validation, and production-readiness activities. Interface with vendors and suppliers on component and equipment selection, technical evaluations, specifications, and procurement. **Continuous Improvement:** Identify and resolve mechanical design issues through structured root-cause analysis and permanent corrective actions. Drive improvements in product performance, reliability, cost, and manufacturability. Incorporate testing, analysis, and cross-functional feedback into iterative design improvements. **Requirements:** Required: - BS or MS in Mechanical Engineering or a related engineering discipline - 7–10 years of relevant industry experience, with demonstrated ownership of products or mechanical systems from concept through production - Proficiency with CAD tools such as SolidWorks, AutoCAD, or equivalent - Strong understanding of mechanical design principles, materials, and manufacturing processes - Knowledge of GD&T and tolerance stack-up analysis - Strong analytical, problem-solving, technical communication, and collaboration skills Preferred: - Experience with energy systems, chemical processing, long-duration energy storage, or advanced hardware startups - Experience designing complex process systems involving instrumentation and vendor-supplied equipment - Experience with high-temperature mechanical systems and materials (approximately 750°C operating environments using superalloys and ceramics)

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