Electrical Engineer
Thea Energy
Company Overview
Thea Energy, originally known as Princeton Stellarators Inc.
Princeton, New Jersey, United States
2022
Employee count and revenue figures for 2023 or later remain undisclosed publicly, though it operates as a private fusion startup with funding from the U.S. Department of Energy's Milestone-Based Fusion Development Program as one of eight recipients (source: pppl.gov).
What They Do
Thea Energy focuses on advancing fusion energy through innovative stellarator designs, utilizing arrays of planar high-temperature superconducting (HTS) coils to achieve stable magnetic confinement. This approach simplifies the traditional complex 3D modular magnets found in conventional stellarators, allowing for more efficient and effective fusion energy production (source: fusionxinvest.com). Their flagship system, named Eos after the Greek goddess of dawn, is designed to produce neutrons for tritium breeding, which is essential for validating their technology and enabling future commercial applications, such as steady-state fusion power plants (source: heatmap.news). The company's technology leverages modern computing power and HTS materials to optimize designs, providing inherent steady-state stability that mitigates disruptions commonly associated with tokamaks (source: thea.energy). Their target markets primarily include commercial fusion energy developers, with an initial focus on neutron sources for industrial applications, although specific customer segments have not been detailed (source: fusionxinvest.com). A key differentiator for Thea Energy is its rapid in-house manufacturing capabilities, which utilize tools like a CNC machine and a specialized device named "Zeus" for winding HTS tape, allowing for quick iterations and reducing reliance on outsourced labor (source: heatmap.news).
Projects & Track Record
As of now, Thea Energy has not completed any projects, as it is still in the early stages of development focused on prototyping its Eos system. This system is intended to serve as the first demonstrator for neutron and tritium production, but specific completion dates, capacity specifications, or project locations have not been reported (source: fusionxinvest.com). The company is actively engaged in building and testing planar HTS coil prototypes at its facility in Kearny, New Jersey, which is equipped with an open office space, laboratory, and small-scale manufacturing capabilities for magnet arrays (source: heatmap.news). Thea Energy's origins at the Princeton Plasma Physics Laboratory (PPPL) provide it with strong partnerships and a foundation in stellarator research, with co-founder David Gates being a notable physicist and Edison Patent Award winner for his contributions to the field (source: pppl.gov). Currently, the geographic presence of Thea Energy is limited to New Jersey, and there have been no announcements regarding expansion, although the location benefits from proximity to significant fusion research hubs in the Northeast, including PPPL and Columbia University (source: heatmap.news).
Recent Developments
In 2023, prior to its rebranding, Princeton Stellarators Inc. received funding from the U.S. Department of Energy's Milestone-Based Fusion Development Program, which supports advancements in stellarator technology toward commercialization (source: pppl.gov). However, there have been no reported contracts, acquisitions, mergers, or additional funding rounds in the last two years, as the company focuses on proprietary breakthroughs without public milestones or awards beyond Gates' personal Edison Patent (source: thea.energy). Thea Energy's website encourages subscription updates but does not list any recent press releases regarding major announcements, indicating a relatively quiet period in terms of public communications (source: thea.energy).
Working There
Information about working at Thea Energy is limited, but it appears to be suitable for job seekers interested in a small, early-stage fusion startup environment. Roles likely encompass engineering positions focused on magnet design, HTS winding, and CNC manufacturing, as well as physics research and operational roles, inferred from the facility's mix of open desks, lab work, and prototype building (source: heatmap.news). Hiring seems to be concentrated at the New Jersey site, with no remote or other location postings documented (source: fusionxinvest.com). The company culture appears to blend the agility of a tech startup with the practicalities of a laboratory environment, emphasizing local unionized labor for scalability and rapid prototyping, rather than relying on elite academic talent, all within a space that prioritizes manufacturing efficiency (source: heatmap.news). However, no documented benefits, salary data, or employee testimonials are available in public sources.
Last updated on Feb 23, 2026 | Report an issue
Job Description
Thea Energy is looking for an experienced, highly motivated Electrical Engineer to join its rapidly growing team. The Electrical Engineer will work collaboratively across a cross-functional engineering team to help develop Thea Energy's core planar coil stellarator fusion technologies. As part of a rapidly growing team, you'll be part of the organizational build-up of a leading fusion energy company. These roles will have a high degree of autonomy and must be able to move quickly. The Thea Energy team is comprised of self-motivated, creative, and fun individuals with an excitement for solving complex problems.
Key Responsibility Areas
- Design, construct, and operate power supplies and control systems for high-temperature superconducting magnets and plasma heating systems (ECRH).
- Specify, design, develop, fabricate, and commission bespoke electronic systems, encompassing low-signal analog and digital equipment, capable of operating in high-stress industrial environments including high magnetic field, vacuum, and cryogenic temperatures.
- Provide comprehensive specifications and facilitate the procurement of commercial off-the-shelf electronic products.
- Actively engage in discussions to define requirements for the systems to be designed.
- Provide full-cycle project support, from design to operation, including prototyping and testing of samples.
- Collaborate and communicate effectively with engineering, physics/science, project management, and procurement groups.
- Generate and revise work packages, including electrical drawings and technical specifications.
- Manage critical procurement contracts and coordinate with vendors for electrical system design, procurement, and commissioning.
- Select and implement industry standards (IEEE, ANSI, IEC, etc.) for use in prototyping projects and the future fusion power plant ecosystem.
- Maintain a detailed project schedule, oversee the delivery of externally furnished documentation and equipment, and coordinate subcontractors.
Ideal Experience & Skillsets
- MS, or PhD in Electrical Engineering or related fields.
- 5+ years of experience in the design and implementation of electrical and electronic systems in an industrial and/or scientific environment.
- Technical proficiency in multiple areas of electrical engineering, including a subset of the following: power conversion, medium voltage distribution, switchgears, protective relaying, low voltage process-industrial facility design, instrumentation, and control.
- Experience using PCB design software (Altium).
- Experience using CAD software (AutoCad, Solidworks).
- Experience in designing front-end analog electronics (differential amplifiers, trans-impedance amplifiers, precise and fast voltage comparators).
- Experience in the design and implementation of power electronics components: PWM converters (GaN/SiC/MOSFETs/IGBTs.), DCL-capacitors, high-frequency transformers, and inductors.
- Experience using simulation software (PSpice, PLECS, MATLAB, Simulink).
- Nice to have experience with designing DSP- and MCU-based embedded control systems.
- Experience in the integration of software and hardware in a high voltage, high current environment would be beneficial.
- Experience in pulsed power systems; electrical and mechanical transient analysis and/or design implications in complex power systems.
- Demonstrated ability to manage system installation within a complex project. Ability to interface with contractors, vendors, and designers.
- Excellent written and verbal communication skills, ability to conduct design reviews, and organize/present material to both expert and non-technical audiences.
- Ability to take initiative, work independently, and as part of a team.
- Comfortable working to aggressive deadlines.
Company Benefits
- Salary range $130,000-$150,000
- Comprehensive health benefits (e.g. medical/dental/vision)
- Employee equity stock options
- 20 days PTO
Requirements
- Ability to occasionally lift up to 50 lbs.
- Ability to perform activities such as typing, standing, or sitting for extended periods of time.
- Willingness to occasionally travel or work required nights/weekends/on-call.
- Ability to work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, high voltage, high current, pressure systems, and cryogenics.
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.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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Job expired?Please let Thea Energy know you found this job on Rejobs. This will help us grow and get more people to work on renewable energy!
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About the role
April 14, 2026
Full time
Company
- Kearny, New Jersey, United States
5+ years
UTC-04:00