Mechanical Design Engineer

Location: Burlingame, California

Department: ESS Engineering

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.

Sodium-Ion is cheap, readily available and safe, making it the leading contender in a rapidly evolving market.

Our leadership team is powered by decades of expertise in scaling gigawatt-level innovation at world-class companies such as Tesla, Northvolt, Fluence, and Enovix. We are backed by strategic investment and product partners such as TDK Ventures, Xora, and Eclipse Ventures.

We are a team of engineers, operators, entrepreneurs, and partners driven by a shared ambition to set the new performance standard for renewable energy and grid resilience.

Job Title: Mechanical Design Engineer, ESS

Location: Burlingame, CA

Department: Energy Storage Systems Engineering

Reports to: Manager, Mechanical Engineering, ESS

Position Type: Full time

About the Job:

Peak Energy is looking for an experienced Mechanical Design Engineer to join our Energy Storage Systems (ESS) team and work on mechanical designs of our utility scale sodium-ion energy storage systems (ESS). This person will be responsible for critical mechanical structures and will work with other design, analysis, manufacturing and program teams both at the high level in design direction and deep in the engineering implementation. This person is hands-on, highly motivated and autonomous.

Responsibilities:

- 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 sub-system 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

- A great team spirit and get-it-done attitude. No job is too big or too small.

Minimum Qualifications:

- 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.

Preferred Qualifications:

- 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 $140,000-$165,000, with actual pay varying based on work location, experience, and skills. Our competitive benefits package includes flexible time off, comprehensive medical, dental, and vision coverage, a strong 401(k) plan, and equity opportunities. Join us to thrive in a supportive environment while making a meaningful impact in the energy sector! 

At Peak Energy Technologies Inc., we believe that a diverse and inclusive workplace makes us a more capable, innovative, and competitive company. We welcome people who represent diversity in their backgrounds, ethnicities, cultures, and experiences. Peak Energy Technologies Inc. is an equal opportunity employer, aiming to reach our company’s full potential by cultivating an inclusive workforce. 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.