Thea Energy · 3 months ago
Spring 2026 Intern
Kearny, NJ
Internship
Onsite
Intern
$18/hr - $30/hr
Start in 2026 SpringThea Energy is leveraging recent breakthroughs in stellarator physics and engineering to create a faster and simpler approach to commercializing fusion energy. The Spring 2026 Intern Program is seeking talented technical interns to support various engineering roles in the development of fusion energy technologies.
Clean EnergyEnergyRenewable Energy
Responsibilities
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
Manufacturing Engineering Interns will support process development, fabrication and assembly, equipment design, and testing for Thea Energy’s HTS magnet prototyping programs. Manufacturing Engineering interns will be exposed to the physical and strategic aspects of the manufacture of HTS magnets, and will get hands-on experience operating equipment
Magnet Engineering Interns will support the design, build, testing, and performance analysis of Thea Energy’s custom HTS magnets. Activities may include: design of magnet components and tooling, development of FEA simulations (electromagnetic, mechanical, or thermal), operation of cryogenic tests and test equipment, and development of custom analytical tools to assess magnet performance
Test Engineering Interns will support the development and execution of test equipment, facilities, and operations associated with Thea Energy's custom HTS magnets and magnet-related hardware. To enable test execution and analysis of performance data, this role may include aspects of mechanical, electrical, instrumentation, and software engineering
Fusion Technology interns will assist scientists and engineers in designing and developing various subsystems for Thea Energy’s stellarator fusion devices
Plasma Physics interns will work with scientists to model magnetically confined high temperature fusion plasmas using sophisticated computational tools
Stellarator Optimization Interns will support computational physicists and plasma physicists in optimizing stellarator magnetic geometry for Thea Energy’s next-generation fusion devices
Project assignments are based on existing team needs at the time and may include, but are not limited to: 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
Qualification
Required
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!
Company
Thea Energy
Thea Energy is taking a faster approach to commercialize fusion energy.
Founded in 2022
51-200 employees
H1B Sponsorship
Thea Energy has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (1)
Funding
Current Stage
Growth StageTotal Funding
$20MKey Investors
US Department of EnergyInternational Research Centre on Artificial Intelligence
2025-09-11Grant
2024-11-13Non Equity Assistance
2024-02-08Series A· $20M
Leadership Team
Brian Berzin
Chief Executive Officer
David Gates
Chief Technology Officer
Recent News
2025-12-15
2025-12-15
2025-12-08
Company data provided by crunchbase