Structural Analyst

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, Sun Power, 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.

Structural Analysis Engineer – ESS

San Francisco Bay area, CA

Energy Storage Systems Engineering

Manager, Mechanical Engineering

Full time

Peak Energy is looking for a Structural Analysis Engineer to lead aid the development of our gigawatt‑scale energy storage system. This person will be a key stakeholder in structural design decisions, from architecture to optimization to validation. They will work with internal design and manufacturing partners, along with external partners, to provide engineering trades and guidance. This person has strong fundamentals while bringing a practical and can‑do attitude to the role.

• Guide and inform Energy Storage System structural design, including defining relevant loading conditions, analysis, and validation strategy.
• Perform detailed static and dynamic structural analysis of systems and components, determining stress, strain, frequency response, and fatigue characteristics using first principles, hand calculations, and FEA.
• Propose design modifications to enhance structural reliability and performance.
• Develop and validate simulation models for structural analysis using advanced computational tools such as finite element analysis (FEA).
• Design and oversee experimental tests to validate models and predictions; work with test engineers to analyze and correlate test data, and incorporate findings into simulation models and design improvements.
• Work closely with cross‑functional teams, including development, manufacturing, and quality assurance.
• Present analysis results and recommendations to technical and non‑technical stakeholders.
• Drive and participate in a culture of rapid prototyping and testing; maintain a great team spirit and a get‑it‑done attitude.

• Master's or PhD, or Bachelor's degree in mechanical, civil, aerospace, or structural engineering.
• 2+ years of experience working with large‑scale structural and electrical systems.
• Proficiency in simulation software such as ABAQUS, ANSYS, or similar.
• Proficiency in pre‑ and post‑processing software such as Hypermesh, ANSA, or similar.
• Experience with design and manufacturing of medium to high volume products.
• Experience with hands‑on testing and model validation.
• Eligible to work in the U.S.

• Master's or PhD in mechanical, civil, aerospace, or structural engineering.
• Experience with transportation durability, random vibration, and road load analysis.
• Experience with fatigue analysis software such as nCode, fe‑safe, or similar.
• Experience with seismic simulation.
• Experience working with HV switch gear.
• Experience working with large‑scale battery storage systems.

The salary range for this role is $140,000 - $175,000, 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!