Jobs at Thea Energy (Now Hiring) — 25 open

FP&A Manager

Kearny, New Jersey, United States · On-site

$125k–$160k/yr

Mid level$120M raised

\n Key Responsibility Areas: 1. High-CapEx Project Financial Management & Modeling Build and maintain detailed financial models tracking high-value capital assets, long-lead procurement, engineering test beds, and facili…

Skills: Financial modeling, CapEx management, Strategic planning, Budgeting, Forecasting

Fusion Plasma Physicist – Diagnostics & Fast-Ion Transport

Kearny, New Jersey, United States · On-site

$100k–$120k/yr

Senior$120M raised

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 stellarato…

Skills: Plasma physics, Fusion science, Experimental diagnostics, Optical emission spectroscopy, Laser-based diagnostics

Intern - Technical Program Management

Kearny, New Jersey, United States · On-site

Mid level$120M raised

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 stellarato…

Skills: Technical Program Management, Engineering, Physics, Manufacturing, Jira

Integrated Modeling Intern - Fall 2026

Kearny, New Jersey, United States · On-site

$18/hr–$30/hr

Entry level$20M raised

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 stellarato…

Skills: Toroidal Plasma Confinement, Constrained Nonlinear Numerical Optimization, Systems Studies, Data Science, Machine Learning

Magnet Engineering Intern - Fall 2026

Kearny, New Jersey, United States · On-site

$18/hr–$30/hr

Entry level$20M raised

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 stellarato…

Skills: CAD, FEA, Electromagnetic Simulation, Hardware Prototyping, Cryogenic Testing

Manufacturing Engineering Intern - Fall 2026

Kearny, New Jersey, United States · On-site

Entry level$20M raised

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 stellarato…

Skills: Manufacturing Documentation, Tooling Design, GD&T, CAD, SolidWorks

Executive Assistant

Kearny, New Jersey, United States · On-site

$115k–$155k/yr

Senior$20M raised

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 stellarato…

Skills: Calendar Management, Executive Support, Stakeholder Communication, Document Drafting, Event Coordination

ERCH / Heating Systems Lead

Kearny, New Jersey, United States · On-site

$150k–$240k/yr

Senior+$20M raised

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 stellarato…

Skills: Plasma Heating Systems, RF Technology, Microwave Technology, High-Power Systems, Magnetic Confinement Fusion

Executive Assistant to the CEO

Kearny, New Jersey, United States · On-site

$125k–$165k/yr

Senior$20M raised

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 stellarato…

Skills: Calendar Management, Executive Support, Stakeholder Communication, Logistics Coordination, Project Management

Director - Quality Assurance

Kearny, New Jersey, United States · On-site

$180k–$225k/yr

Senior+$20M raised

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 stellarato…

Skills: Quality Management System Architecture, Supplier Quality Engineering, Root Cause Analysis, ISO 9001, AS9100

IT Intern

Kearny, New Jersey, United States · On-site

Entry level$20M raised

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 stellarato…

Skills: Help Desk Support, Device Management, User Onboarding, Technical Documentation, Inventory Tracking

CAD Configuration Manager

Kearny, New Jersey, United States · On-site

$150k–$185k/yr

Senior$20M raised

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 stellarato…

Skills: Siemens NX, Siemens Teamcenter, Configuration Management, PDM Administration, PLM

Vice President - HTS Magnet Engineering

Kearny, New Jersey, United States · On-site

$240k–$300k/yr

Senior+$20M raised

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 stellarato…

Skills: HTS Magnet Engineering, Cryogenics, Vacuum Systems, Transformer Design, Electromagnetics

HTS Magnet Engineering Manager

Kearny, New Jersey, United States · On-site

$190k–$220k/yr

Senior$20M raised

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 stellarato…

Skills: HTS Magnet Design, People Management, Cryogenics, Vacuum Systems, Transformer Design

HTS Magnet Multiphysics Modeling Engineer

Kearny, New Jersey, United States · On-site

$85k–$120k/yr

Mid level$20M raised

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 stellarato…

Skills: Python, Ansys EM, COMSOL, Solidworks, CATIA

Director - HTS Magnet Engineering

Kearny, New Jersey, United States · On-site

$215k–$250k/yr

Senior+$20M raised

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 stellarato…

Skills: HTS Magnet Engineering, Cryogenics, Vacuum Systems, Transformer Design, CAD

Facilities & Maintenance Technician

Kearny, New Jersey, United States · On-site

$26/hr–$34/hr

Mid level$20M raised

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 stellarato…

Skills: Plumbing, Basic Electrical, Carpentry, Painting, HVAC Maintenance

Manufacturing Engineer II

Kearny, New Jersey, United States · On-site

$105k–$130k/yr

Senior$20M raised

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 stellarato…

Skills: Manufacturing Engineering, Process Development, Tooling Design, GD&T, PLM

Test Engineering Manager

Kearny, New Jersey, United States · On-site

$130k–$160k/yr

Senior+$20M raised

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 stellarato…

Skills: Test Validation Strategy, People Management, Cryogenic Systems, High Vacuum Components, LabVIEW

Electronics Hardware Design Engineer

Kearny, New Jersey, United States · On-site

$110k–$150k/yr

Senior$20M raised

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 stellarato…

Skills: Embedded Hardware Design, PCB Layout, Schematic Capture, Analog Circuit Design, Mixed-Signal Circuit Design

About Thea Energy

Breakthrough fusion technology designed for operation and scale.

Industry
Renewable Energy Power Generation
Company size
51-200 employees
Founded
2022
Headquarters
Kearny, New Jersey
LinkedIn followers
17,700
Total funding
$120M

Thea Energy is building an economical and scalable fusion energy system utilizing arrays of mass-manufacturable magnets and dynamic software controls. Commercial fusion energy can uniquely provide a limitless source of power for the future of humanity. Thea Energy spun out of Princeton University and Princeton Plasma Physics Laboratory in 2022 to commercialize the stellarator, a mature magnetic confinement fusion architecture. The Company was selected as an inaugural awardee of the U.S. Department of Energy’s Milestone-Based Fusion Development Program following a detailed merit review process. Thea Energy is also supported via six Department of Energy INFUSE awards and an ARPA-E SCALEUP award. Thea Energy is currently collaborating with leading national labs, academic institutions, and industrial partners to commercialize fusion energy on the fastest and most efficient path.

Offices: 1 Eastern Rd, Suite 3-04, Kearny, New Jersey 07032, US

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