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Mechanical Engineering Intern Spring 2026

Thea Energy
Kearny, NJ Intern
POSTED ON 3/10/2026 CLOSED ON 4/10/2026

What are the responsibilities and job description for the Mechanical Engineering Intern Spring 2026 position at Thea Energy?

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: 

We are looking for talented technical interns to join our stellar team in the spring!

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Program Details:
  • Spring 12-16 week internship program for 40 hours per week or flexible school year internship for 30 hours per week
  • For school year internships, expected time dedication is flexible and tailored to your academic schedule


Mechanical Engineering Intern (onsite):
  • Mechanical Engineering Interns will develop and exercise their design, analysis, and hands-on skills to support prototyping and stellarator design activities
  • Activities may include CAD and/or FEA model development and will culminate in the delivery of functional custom components, tooling, fluid systems, and test equipment
  • This role will require at least 3 days onsite per week


Project Assignments Examples:
  • High-temperature superconducting magnet engineering, manufacturing, and testing
  • Cryogenic and vacuum systems
  • Instrumentation and diagnostic systems
  • Electrical and control systems engineering
  • Mechanical engineering
  • Various modeling, simulation, and data analysis roles including but not limited to COMSOL, ANSYS, Python, C , MATLAB, Simulink, Microsoft Visio, LabVIEW


Ideal Skills:
  • Enrolled in a STEM undergraduate or graduate program (mechanical engineering, aerospace engineering, materials science, electrical engineering, etc.)
  • Interest in clean and sustainable energy to combat climate change
  • Hands-on or computational experience through academic research, club projects, hackathons, or industry internships
  • Highly self-motivated, independent, and driven to solve problems
  • Authorized to work in the US
  • Willingness to learn new things!
  • Compensation: $18-25/hr undergraduate and $26-30/hr post-grad


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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.

Hourly Wage Estimation for Mechanical Engineering Intern Spring 2026 in Kearny, NJ
$47.00 to $56.00
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