Director - Electrical Engineering Systems
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 2026-02-23 | Report an issue
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.
Thea Energy is seeking a Director - Electrical Engineering Systems to lead electrical system design and execution for the Company's upcoming Eos integrated stellarator. This leader will manage and grow three tightly coupled engineering groups:
- Electrical Distribution (facility and plant electrical architecture and integration)
- Power Electronics (development of high-power converters and HTS magnet power supplies)
- Electronics Systems Engineering (embedded control and instrumentation electronics, including custom PCBAs)
This role will own the end-to-end delivery of electrical systems from architecture and requirements through detailed design, prototyping, vendor engagement, test, installation support, and commissioning readiness. The Director will serve as a key cross-functional partner to systems engineering, controls and software, mechanical engineering, safety, and program management, ensuring electrical designs are buildable, testable, safe, and integrated.
As part of a rapidly growing team, you'll be part of the organizational build-up of a leading fusion energy company. This role 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
- Lead and mentor a multi-disciplinary organization spanning power systems, power electronics, and embedded electronics, including hiring, performance management, career development, and team structure.
- Establish engineering operating rhythm: planning, prioritization, technical reviews, staffing plans, and decision-making processes.
- Set technical direction and ensure consistent engineering quality across requirements, architecture, implementation, verification, and documentation.
- Own the plant-level electrical architecture, including utility interface, substation and distribution design, grounding and protection philosophy, and power quality and reliability strategy.
- Guide system modeling and simulation efforts including load flow, short-circuit, and transient studies, and ensure models remain consistent with evolving load envelopes and operating modes.
- Lead integration strategy for compensation and storage assets such as STATCOM for load shaping, ride-through capability, and power recovery as applicable.
- Own the technical interface to external engineering, procurement, and construction partners and utilities, including technical specifications, design reviews, and factory and site acceptance participation.
- Oversee development of high-power converters and magnet power supplies, including topology selection, protection concepts, thermal strategy, and integration with embedded controls.
- Develop test strategy and execution: prototype bring-up, staged-load validation, failure mode exploration, parameter tuning, and readiness evidence for integration.
- Own hardware architecture for embedded control and instrumentation electronics that interface power conversion hardware, diagnostics, and control firmware.
- Lead electromagnetic compatibility and noise mitigation strategy across boards, cabinets, and system integration boundaries.
- Partner with systems engineering to translate device requirements into electrical requirements, interface definitions, and verification plans.
- Run evidence-based technical gates and design reviews, with clear entry and exit criteria and configuration control.
- Own delivery artifacts such as requirements, interface definitions, design packages, test plans, and acceptance evidence to support procurement, installation, and commissioning.
- Maintain a strong safety culture including electrical safety, hazard analysis inputs, and design choices that support safe installation and operations.
- Provide hands-on leadership in lab and field environments, coordinating with technicians and test teams for build, wiring, installation support, and debug.
Ideal Experience & Skillsets
- Bachelor's degree or higher in Electrical Engineering or equivalent.
- 10 or more years of relevant experience spanning two or more of the following: power systems, substation and distribution, power electronics, embedded electronics, controls hardware, industrial electrical infrastructure.
- 5 or more years of engineering management experience leading multi-team organizations, including hiring and performance leadership.
- Demonstrated experience owning complex system development from architecture through prototype validation and integration.
- Strong foundation in electrical safety, high voltage and high-power engineering practices, and engineering standards and documentation discipline.
- Strong cross-functional communication skills and experience driving technical decisions across physics, mechanical, controls software, safety, and program teams.
- Experience delivering electrical systems for fusion, accelerator facilities, advanced nuclear, large industrial plants, or other high power research facilities.
- Experience with utility interconnection processes, protection coordination, and power quality mitigation.
- Experience with battery energy storage systems, static compensators, and dynamic load environments.
- Experience establishing verification and validation processes and configuration control for hardware programs.
- Familiarity with electromagnetic compatibility practices for high power switching environments and mixed-signal instrumentation.
- Power system analysis: ETAP, DIgSILENT PowerFactory, PSCAD, SKM, CYME.
- Power electronics simulation and design: PLECS, LTspice, Simulink, Altium or OrCAD.
- Electronics design and lab: Altium or OrCAD, oscilloscopes, logic analyzers, power analyzers, electronic loads.
Company Benefits
- Salary range $120,000-$240,000
- 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
March 13, 2026
Full time
Company
- Kearny, New Jersey, United States
10+ years of relevant experience
UTC-05:00