Thermal Engineer

Exowatt is revolutionizing the energy landscape for the AI era with our groundbreaking P3 system that captures solar energy, stores it as heat, and generates electricity on demand. Founded in 2023 and backed by leading investors including Andreessen Horowitz, Sam Altman, and Felicis, we're committed to providing clean, modular, and scalable power that meets the rapidly growing demands of AI infrastructure. Our mission is to make sustainable renewable energy always available and almost free, enabling technological advancement while protecting our planet.

We are hiring an experienced and innovative Thermal Engineer to join our team. This role focuses on the thermal management and design of Exowatt’s products, ensuring optimal performance and reliability in various operating conditions. In this role you will design, analyze, and optimize thermal management systems for Exowatt’s products.

This position is based in Miami, FL. If selected, relocation to Miami, FL is required. Exowatt provides relocation assistance.

What You'll Do

- Design, analyze, and optimize thermal management systems for Exowatt’s products.

- Perform thermal analysis using simulation tools and experimental methods to predict and validate thermal performance of battery systems.

- Collaborate with cross-functional teams to integrate thermal solutions into product designs.

- Develop and implement thermal testing procedures, including thermal cycling and environmental testing.

- Conduct failure analysis and implement corrective actions to resolve thermal issues.

- Support product development from concept through production, ensuring thermal requirements are met.

- Conduct research and analysis to identify and address thermal challenges in our product

- Build prototypes, test features, analyze failures in order to maximize outputs - continuously optimizing in order to never leave energy on the table.

- Create excellent technical documentation - slide decks, testing plans and reports, procedures, assembly, vendor specifications, and statements of work, etc.

- Assist in recruiting and interviewing efforts to help build our amazing team.

What You Have

- BS/MS/PHD in Mechanical or Thermal engineering.

- 5+ years of relevant Thermal Engineering or Systems Engineering experience.

- Proficiency with mechanical CAD.

- Understanding of heat transfer fundamentals in energy systems.

- Strong analytical skills with emphasis on using and/or directing finite element analysis (FEA).

- Experience with thermal analysis of mechanical and electronic systems, in space, air or ground environments.

- Experience designing highly efficient heat exchangers for high temperature applications.

- Experience in thermal analysis and thermally-constrained design; computational thermal design experience (finite methods) is not required but highly preferred.

- Ability to support design decisions with well documented engineering analyses and calculations.

- Ability to analyze problems and to focus and drive down to the root cause of problems quickly.

- Ability to make technical presentations internally and to customers.

- A passion and enthusiasm for hardware development, including working in a fast-paced environment and hands-on design and development.

$165,000 - $200,000 a year

What We Offer

Competitive salary and equity options.

Comprehensive benefits package, including health, dental, and retirement plans.

A dynamic work environment that fosters creativity and innovation.

Opportunities for professional growth and development in a rapidly evolving industry.

Relocation assistance.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.