Mechanical Design Engineer

About the Company

Peak Energy is the first American venture to advance globally proven Sodium‑Ion battery systems as the storage standard for the new era of renewable energy on a resilient grid. With leadership drawn from Tesla, Northvolt, Fluence, and Enovix, we are backed by strategic investment and partners such as TDK Ventures, Xora, and Eclipse Ventures.

Title:

Mechanical Design Engineer, ESS

Location:

Burlingame, CA

Department:
Energy Storage Systems Engineering

Reports to:

Manager, Mechanical Engineering, ESS

Position Type:
Full time

Peak Energy is looking for an experienced Mechanical Design Engineer to work on mechanical designs of our utility‑scale sodium‑ion energy storage systems (ESS). This role focuses on design ownership of critical mechanical structures and collaborates closely with design, analysis, manufacturing and program teams.

• Design ownership of Peak's ESS mechanical enclosure systems from architecture through continuous improvement
• Define product design direction by meticulously exploring broadly and deeply, while trading and communicating design decisions
• Focus on design areas of need, which may include mechanical enclosures, environmental seals, and heat sinks
• Develop and manage subsystem and component requirements
• 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
• Maintain a team spirit and get‑it‑done attitude

• Bachelors in Mechanical Engineering or related field
• 0–3 years of relevant experience, including academic or internship experience
• Mastery of mechanical and thermal engineering fundamentals
• Conversant in electrical fundamentals
• Extensive use of commercial CAD and PLM software (CATIA or NX)
• Familiarity with FEA/CFD and other common CAE practices
• Familiarity with high voltage battery system or power electronics design
• Experience with design and manufacturing of medium to high volume products
• Hands‑on prototyping, validation and testing experience
• Passion for renewable energy, sustainability, and driving positive environmental impact through technology innovation
• Eligible to work in the U.S.

• 2+ years of experience working with HV batteries or power electronics
• Product design experience with high volume automated manufacturing requirements

The salary range for this role is $110,000 – $140,000, with actual pay varying based on location, experience, and skills. We offer a competitive benefits package that includes flexible time off, comprehensive medical, dental, and vision coverage, a 401(k) plan, and equity opportunities.

Peak Energy Technologies Inc. is an equal opportunity employer. We welcome applicants who represent diversity in their backgrounds, ethnicities, cultures, and experiences. We do not discriminate on the basis of race, color, ancestry, religion, national origin, sexual orientation, citizenship, marital or family status, disability, gender identity or expression, veteran status, or any other legally protected status.