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PeakenergyESS Engineering

Mechanical Design Intern (Fall 2026)

Burlingameonsitejunior

via Greenhouse

About this role

About the Job 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. 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…

Read the full description on Peakenergy's site →

What we'd score you on

reqspace match rubric

Five dimensions, recruiter-grade. Upload your resume and we'll generate a written explanation of where you fit and where the gaps are.

1

Skills match

For this role: matlab, teams

2

Level fit

This role is junior-level. We check your trajectory against it.

3

Domain experience

Your work in the role's domain matters more than your years total. We weight recent and direct experience.

4

Recency

A skill you used last quarter weighs more than one from five years ago. We grade on recency, not lifetime.

5

Location fit

This role is based in Burlingame. We weight your proximity and willingness to relocate.

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Skills in this role

Pulled from the job description. These are the keywords we'll weight when scoring your fit.

matlabteams

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