Thea Energy

Executive Assistant

Join Thea Energy in Kearny, New Jersey as an Executive Assistant supporting the CEO. Manage calendars, communications, and coordinate key activities in a fast-paced fusion energy startup. Enjoy competitive salary, health benefits, and stock options while helping build a sustainable energy future.
Thea Energy
Thea Energy
Kearny, New Jersey, United States On-site Full time USD 85k–135k yearly UTC-05:00

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

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 an ambitious and resourceful executive assistant to join our team and help us build the future of fusion energy. You will serve as a force multiplier for the executive team and report directly to Thea Energy's CEO. As an executive assistant, you will provide critical support across a variety of operational tasks. The ideal candidate will be highly organized, possess excellent communication skills, and thrive in the fast-paced environment of a rapidly scaling company. Thea Energy's dynamic team is made up of self-motivated individuals with an excitement for solving complex problems.

Key Responsibility Areas

Calendar

  • Manage and maintain calendars, including scheduling meetings and trips.
  • Collaboratively ensure that use of time is aligned with real-time priorities of the company with minimal friction.
  • Ensure team is always prepared (and never surprised by) meetings.
  • Anticipate needs, and issues before they arise.

Communication

  • Serve as a point of contact between the executive team and various internal and external stakeholders.
  • Manage and triage inbound communications.
  • Draft, proofread, and edit documents, reports, communications, and other materials.

Coordination

  • Track action items and follow-ups, ensuring nothing falls through the cracks.
  • Arrange trips, events, team meetings, and offsite activities as required.

Other special projects as required

Ideal Experience & Skillsets

  • 5+ years of work experience as an executive assistant.
  • Demonstrated organizational skills and attention to detail.
  • Highly structured and process-driven, with a speed and execution mindset.
  • Ability to manage competing priorities across internal teams and external stakeholders.
  • Excellent oral, written, and interpersonal communication skills.
  • Startup experience strongly preferred; comfort with ambiguity, and an ability to thrive in a fast-paced, dynamic environment.
  • Proactive, self-directed, and solutions-oriented.
  • Tech-savvy: fluent in Microsoft Office, Google workspace, Slack, Asana, and similar tools; quick to learn new software.
  • High integrity, discretion, and professionalism in handling confidential and sensitive information.
  • Bachelor's degree or greater.

Company Benefits

  • Salary range $85,000-$135,000
  • Comprehensive health benefits (e.g. medical/dental/vision)
  • Employee equity stock options
  • 20 days PTO

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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About the role

May 12, 2026

Full time

Company

May 13, 2026

On-site

USD 85k–135k yearly

Hydrogen

Thea Energy

thea.energy

  •  Kearny, New Jersey, United States

5+ years

UTC-05:00