Mechanical Engineering Intern Spring 2026

Thea Energy • Kearny, NJ

108d • $18 - $30

About The Position

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. We are looking for talented technical interns to join our stellar team in the spring! The Spring 12-16 week internship program is for 40 hours per week or a flexible school year internship for 30+ hours per week. For school year internships, expected time dedication is flexible and tailored to your academic schedule.

Requirements

• 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.

Responsibilities

• Develop and exercise design, analysis, and hands-on skills to support prototyping and stellarator design activities.
• Engage in CAD and/or FEA model development.
• Deliver functional custom components, tooling, fluid systems, and test equipment.
• Work on high-temperature superconducting magnet engineering, manufacturing, and testing.
• Assist with cryogenic and vacuum systems.
• Contribute to instrumentation and diagnostic systems.
• Support electrical and control systems engineering.
• Participate in various modeling, simulation, and data analysis roles including but not limited to COMSOL, ANSYS, Python, C++, MATLAB, Simulink, Microsoft Visio, LabVIEW.

Benefits

• Compensation: $18-25/hr undergraduate and $26-30/hr post-grad.

What This Job Offers

• Career Level: Intern
• Education Level: Bachelor's degree
• Number of Employees: 51-100 employees