Mechanical Design Intern

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    Peak Energy

    The Storage Standard for the New Era of Energy

    51-200 employeesFounded 2023San Francisco Bay Area, CaliforniaEnergy Technology
    Actively hiringPaidFall 2026Energy Technology
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    Best applied by Oct 6

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    About the role#

    Peak Energy is looking for a Mechanical Design Intern to join our Energy Storage Systems team. You will work on the mechanical design of utility scale sodium-ion energy storage systems. This role involves supporting mechanical system and component design while working alongside our manufacturing, test, and analysis teams.

    What you'll do#

    • Focus on design areas such as module enclosures, adhesives, plastic components, high current conductors, and communications harnessing.
    • Work with thermal and structural analysts to inform design decisions.
    • Participate in rapid prototyping and testing.
    • Support product validation from initial concepts through field deployment.
    • Help ensure a smooth transition from product development to mass production.

    What you'll need#

    • Currently pursuing a degree in mechanical engineering, engineering physics, or a related field.
    • A strong grasp of mechanical and thermal engineering fundamentals.
    • Basic understanding of power electronics and electrical fundamentals.
    • Familiarity with 3D CAD software and experience building prototypes.
    • A passion for renewable energy and sustainability.
    • Eligibility to work in the U.S.
    • Preferred experience includes CATIA V6 or Siemens NX, and familiarity with tools like MATLAB, FEA, or CFD.

    Location & details#

    • Location: Burlingame, California.
    • Modality: On-site.
    • Term: Fall 2026.
    • Status: Full-time and paid at $30/hr.
    • Benefits include flexible time off, medical, dental, and vision coverage, a 401(k) plan, and equity opportunities.

    About Peak Energy

    Peak Energy is an energy technology company based in the San Francisco Bay Area. Founded in 2023, the firm focuses on sodium-ion battery energy storage systems. It partners with utilities and independent power producers to support grid resilience. The company currently employs 180 people.

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