Mechanical Engineer III

About Thea Energy:

Thea Energy is leveraging recent breakthroughs in stellarator physics and engineering to create a faster and simpler approach to commercializing fusion energy. The company is reinventing the stellarator using computer-controlled arrays of planar coils thereby replacing the intricate, complex modular magnets required in all other stellarator architectures. Thea Energy is on a mission to create a limitless source of zero emission energy for a sustainable future.

Position Overview:

Thea Energy is looking for experienced, highly motivated mechanical engineers to join its rapidly growing team. Mechanical engineers will have ownership of the mechanical design and development of primary and secondary components and subsystems in the development of Thea Energy’s stellarator fusion systems. You will be responsible for the structural and thermomechanical design, manufacturability, analysis, development, and commissioning of these components. The Thea Energy team is comprised of driven, creative, and fun individuals passionate about solving complex problems.

Key Responsibility Areas:

• Contribute to the design and development of primary and secondary mechanical fusion components and subsystems
• Produce mechanical engineering designs, drawings, specifications, and parameters from first principals with appropriate tolerances for vendor quoting and manufacturing
• Design tooling for assembly
• Perform thermal, structural, and electromagnetic analysis and simulation using Ansys and COMSOL
• Incorporate design for manufacturing principles and support first builds
• Support the implementation of tooling and manufacturing
• Design and execute qualification testing
• Communicate and collaborate with internal and external stakeholders

Ideal Experience & Skillsets:

• Minimum of a bachelor’s degree in mechanical engineering, aerospace engineering, physics, or related fields
• Experience designing, building, and commissioning custom systems
• Experience in mechanical engineering using CAD software (e.g. Solidworks, CATIA, NX, etc.)
• Experience specifying machining, welding, and/or fabrication requirements
• Ability to decompose and solve complex problems
• Ability to take initiative and guide the design and analysis of complex components and systems with the aid of peers and team members
• Ability to execute and flourish in a fast-paced, rapidly changing environment
• Familiarity with GD&T (ASME Y14.5) & Drawing Standards
• Comfortable working to aggressive deadlines
• Exceptional work ethic
• Strong team member with clear communication and collaboration skills

Company Benefits:

• Salary range $85,000-$150,000
• Comprehensive health benefits (e.g. medical/dental/vision)
• Employee equity stock options
• 20 days PTO

It’s not necessary to meet all of the skillsets outlined above. Please feel free to send us a note and tell us why you would still be a great fit for this role or Thea Energy.

Diversity and Inclusion:

Thea Energy is an equal opportunity employer committed to creating a company of diverse backgrounds. By creating a diverse environment, we will bring new ideas and approaches to solving some of the world’s hardest (and most important) problems. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, sexual orientation, gender identity or expression, national origin, family or marital status, age, disability, veteran’s status, or other characteristic protected by applicable laws and regulations.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. 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.