Mechanical Design Intern (Fall 2026)

Peak Energy•Burlingame, CA

About The Position

Peak Energy is looking for a Mechanical Design Intern to join our Energy Storage Systems (ESS) team and work on mechanical designs of our utility scale sodium-ion energy storage systems (ESS). You will be supporting mechanical system and component design and will work with other design, analysis, manufacturing and test teams to realize your designs. You are hands-on, highly motivated and excited to learn.

Requirements

Pursuing a mechanical engineering, engineering physics, or equivalent degree
Strong grasp mechanical and thermal engineering fundamentals
Basic understanding of power electronics and electrical fundamentals
Familiarity with 3D CAD software
Experience with building prototypes
Passion for renewable energy, sustainability, and driving positive environmental impact through technology innovation.
Eligible to work in the U.S.

Nice To Haves

CATIA V6 or Siemens NX experience
Familiarity with simulation or analysis tools like MATLAB, FEA, or CFD

Responsibilities

Focus on design areas of need, which may include: module enclosure, adhesives, plastic component design, high current conductors, communications harnessing
Interface tightly with partners such as thermal and structural analysts and other design functions to inform design decisions
Drive and participate in a culture of rapid prototyping and testing
Support validation of Peak products from concept through field deployment
Ensure a smooth transition from maturing product to mass production