Stellarator fusion systems with manufacturable magnet arrays and software control
Thea Energy is building a commercial fusion reactor (Eos) using a planar-coil stellarator architecture, with engineering focus on high-temperature superconducting magnets, cryogenic systems, and real-time control software. The stack—COMSOL, ANSYS, MATLAB, Python, C++, LabVIEW—reflects deep physics simulation and embedded systems work. Heavy senior and director hiring (20+ senior, 5 director roles open) against a 51–200 base suggests they're scaling from research spin-out toward manufacturing and systems integration; pain points around production time reduction and equipment lead times confirm the shift from theory to prototype.
Notable leadership hires: People Director
Thea Energy, founded in 2022 as a Princeton Plasma Physics Laboratory spin-out, designs and builds fusion energy systems based on the stellarator—a magnetically confined plasma design originally developed at Princeton. The company's first integrated system, Eos, uses arrays of mass-manufacturable magnets and dynamic software controls to achieve steady-state fusion neutrons. The engineering organization spans magnet engineering, cryogenic and vacuum systems, mechanical subsystems, instrumentation and diagnostics, and distributed control architectures. The team operates from Kearny, New Jersey, and is currently hiring across engineering disciplines with accelerating velocity.
Thea Energy is developing Eos, an integrated stellarator fusion system using planar coil magnets and software controls to produce commercial-scale fusion energy in steady state.
Primary tools include COMSOL, ANSYS, MATLAB for physics simulation; Python and C++ for control software; LabVIEW and National Instruments hardware for instrumentation; SolidWorks and CATIA for CAD; Fortran and VHDL for legacy and embedded systems.
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