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Senior Mechanical Design Systems Engineer

Critical EnergyHawthorne, CA
On-site Full-time

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Experience Level

Senior

Qualifications

- Proven experience in mechanical design and fluid dynamics.- Strong understanding of system architecture, physical layout, and structural integrity.- Ability to collaborate effectively with interdisciplinary teams.- Passion for clean energy and commitment to innovative problem-solving.

About the job

Critical Energy creates modular power plants that convert heat into electricity using a closed-loop thermodynamic cycle. Founded by a former SpaceX engineer, the company delivers clean energy systems that can be installed quickly, often in weeks. These solutions support continuous, high-efficiency power for geothermal and waste heat recovery applications. Clients include AI hyperscalers, data centers, and other sectors with demanding energy needs. Backed by leading investors in climate and technology, Critical Energy is expanding rapidly.

The company’s vision centers on building a sustainable, low-cost, and fully clean energy future through advanced geothermal technology.

Role overview

The Senior Mechanical Design Systems Engineer role is based in Hawthorne, CA. This position focuses on mechanical design and fluid dynamics for clean energy power generation systems. The work is hands-on and spans the entire project lifecycle, from initial concept through completion. Collaboration with cross-functional teams is a key part of the job.

What you will do

  • Design, develop, and optimize mechanical systems for modular power plants
  • Lead projects from concept through final delivery
  • Work with engineers and other teams to integrate components and subsystems
  • Apply expertise in fluid dynamics and structural design to product development
  • Design and integrate components such as heat exchangers, turbines, pumps, and related subsystems

What we value

  • Adaptability and eagerness to learn new skills
  • Strong background in mechanical and structural design
  • Hands-on experience in product development and system integration
  • Dedication to advancing clean energy solutions

Critical Energy brings together engineers, designers, and innovators focused on a future powered entirely by clean energy. Those who want to contribute to meaningful energy solutions are encouraged to apply.

About Critical Energy

Critical Energy is a forward-thinking cleantech firm focused on delivering scalable clean energy solutions, founded by a former SpaceX engineer. Our modular power plants are designed for rapid deployment and efficiency, supporting the global transition to sustainable energy.

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