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Staff Structures Design Engineer, ESS - Peak Energy

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Job Title
Staff Structures Design Engineer, ESS
Job Location
San Francisco Bay Area, California
Job Description

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, SunPower, Fluence, and Enovix. We are backed by strategic investment and product partners such as TDK Ventures 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. 

About the Job:

Peak Energy is looking for a Staff Structures Design Engineer to own the mechanical design of our utility scale sodium-ion energy storage systems (ESS). The Staff Structures Design Engineer will be responsible for mechanical system and component designs 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. 


  • Lead the design, analysis, and optimization of structural components for Peak Energy's advanced energy storage systems, focusing on durability, efficiency, and cost-effectiveness. 
  • Collaborate closely with cross-functional teams, including simulation, validation, manufacturing, and quality assurance, to ensure structural integrity and performance align with product specifications and industry standards. 
  • Utilize advanced modeling and simulation tools to predict structural behavior under various operational conditions and optimize designs accordingly. 
  • Drive the development and implementation of best practices in structural engineering within the organization. 
  • Collaborate with external partners and suppliers to ensure the highest quality of materials and components for structural applications. 
  • Lead critical problem-solving initiatives in response to structural challenges encountered during product development and deployment. 
  • Ensure a smooth transition from maturing product to production-ready 
  • A great team spirit and get-it-done attitude. No job is too big or too small.  

Minimum Qualifications:

  • Bachelors or Masters degree in Mechanical Engineering or related field 
  • 10+ years of experience working with structural products 
  • Exceptional fundamentals in structures 
  • Extensive use of commercial CAD and PLM software  
  • Familiarity with CAE software such as Abaqus or ANSYS 
  • Experience with design and manufacturing of medium to high volume products  
  • Hands on prototyping, validation and testing experience 
  • Eligible to work in the U.S.   

Preferred Qualifications: 

  • Experience with factory-built stationary structures 
  • Large format battery architecture development experience 
  • Product design experience with high volume automated manufacturing requirements


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.

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Peak Energy Headquarters Location

Denver, CO

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Peak Energy Company Size

Between 2 - 10 employees

Peak Energy Founded Year


Peak Energy Total Amount Raised


Peak Energy Funding Rounds

View funding details
  • Seed

    $10,000,000 USD