Mechanical Design Intern

About the role#

Peak Energy is seeking a Mechanical Design Intern to join the Energy Storage Systems (ESS) team. This role focuses on the mechanical design of utility-scale sodium-ion energy storage systems, supporting the development of systems and components from initial concept through to mass production.

What you'll do#

• Design module enclosures, adhesives, plastic components, high current conductors, and communications harnessing.
• Collaborate with thermal and structural analysts to inform and refine design decisions.
• Participate in rapid prototyping and testing cycles.
• Support product validation from the conceptual stage through field deployment.
• Facilitate the transition of maturing products into mass production.

What you'll need#

• Currently pursuing a degree in Mechanical Engineering, Engineering Physics, or an equivalent field.
• Strong grasp of mechanical and thermal engineering fundamentals.
• Basic understanding of power electronics and electrical fundamentals.
• Familiarity with 3D CAD software, with preference for CATIA V6 or Siemens NX experience.
• Experience building prototypes.
• Familiarity with simulation or analysis tools such as MATLAB, FEA, or CFD is preferred.

Location & details#

• Location: Burlingame, California.
• Term: Winter 2027.
• Modality: On-site.
• Compensation: $30/hr.
• Employment: Full-time.
• Benefits: Flexible time off, medical, dental, and vision coverage, 401(k) plan, and equity opportunities.