Head of Hardware

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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.

About the Job

Peak Energy is seeking a Head of Hardware to lead all aspects of hardware development for our ESS platform—including system, mechanical, structural, and thermal domains. You'll set the direction and drive execution across subsystem design, integration, and validation, ensuring our hardware is safe, reliable, and ready for scale. This role is ideal for a technical leader who thrives at the intersection of multiple disciplines and wants to help build a world‑class energy storage product from first principles.

Responsibilities

• Act as technical lead for Peak's products

• Lead system design and ensure successful integration across system, mechanical, structural, and thermal domains.

• Define and maintain system‑level requirements for HV/LV distribution, enclosures, interconnects, cooling, and protections.

• Own system modeling and engineering through requirements definition across mechanical, thermal, and structural domains to ensure cohesive, high‑performance product design.

• Oversee design‑for‑manufacturability and collaborate with supply chain partners to scale production.

• Own validation testing—mechanical reliability, thermal cycling, HV insulation, seismic/structural performance.

• Ensure compliance with safety and certification standards (UL, IEEE, IEC).

• Partner with software, firmware, and electronics teams to deliver seamless end‑to‑end product integration.

• Recruit, mentor, and grow a multidisciplinary hardware team spanning electrical, mechanical, structural, and thermal engineering.

Minimum Qualifications

• 10+ years of experience in hardware engineering with at least 5 years in leadership roles.

• Proven track record of delivering at scale high voltage and high power systems, energy storage systems, or comparable large‑scale industrial/automotive hardware.

• Expertise across electrical system design (HV/LV systems, bussing, protections), mechanical/structural design, and thermal management.

• Skilled in CAD (Solid Works, CATIA) and analysis tools (FEA, CFD) as well as hands‑on prototyping and validation.

• Strong understanding of compliance, certification, and safety requirements for ESS hardware.

• Excellent communicator and team builder with the ability to align across disciplines.

• Bachelor's, Master's, or PhD in Mechanical Engineering, Electrical Engineering, or related field.

Preferred Qualifications

• Experience scaling hardware teams in startups or high‑growth environments.

• Familiarity with manufacturing processes for ESS enclosures, interconnects, and cooling systems.

• Exposure to sodium‑ion, lithium‑ion, or other advanced battery technologies.

Peak Energy Core Values

• Speed Through Focus:
Prioritize what matters most and execute quickly without distractions.

• Mission Over Self:
Put the company's mission and team success ahead of individual interests.

• Face the Brutal Truth:
Embrace honesty, even when it's uncomfortable, to make informed decisions.

• Be a Good Person:
Treat everyone with respect and integrity, fostering a positive and ethical work environment.

Salary and Benefits

The salary range for this role is $215,000 - $265,000, with actual pay varying based on work location, experience, and skills. Our competitive benefits package includes flexible PTO, comprehensive medical, dental, and vision coverage, a strong 401(k) plan,…