Thea Energy

Accounting Associate

Join Thea Energy in Kearny, New Jersey as an Accounting Associate. Lead corporate accounting, manage procurement, and ensure GAAP compliance in a fast-growing fusion energy startup. Enjoy competitive salary, health benefits, and stock options in a dynamic, mission-driven environment.
Thea Energy
Thea Energy
Kearny, New Jersey, United States On-site Full time USD 120k–145k 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.

Position Overview

Thea Energy is seeking an experienced and highly motivated Accounting Manager to join its rapidly growing team. In this role, you will own the corporate accounting function and drive day-to-day operations. You will partner closely with leadership to implement a scalable financial infrastructure, manage strategic procurement workflows, and build robust internal controls. The ideal candidate brings expertise in US GAAP and the ability to execute an accurate, timely financial close while delivering precise reporting to support FP&A, investor relations, and tax incentive optimization. Thea Energy's dynamic team is made up of self-motivated individuals with an excitement for solving complex problems.

Key Responsibility Areas

  • Own the corporate accounting function and complete timely, accurate month-end and year-end financial closes.
  • Architect and oversee the end-to-end procurement process, from vendor onboarding and purchase order (PO) management to the accurate and timely processing of accounts payable.
  • Lead the implementation of a scalable financial infrastructure (ERP/Procurement tools) built on robust systems and processes.
  • Prepare comprehensive financial statements, manage accounting data feeding business insights, and assist in preparing board decks and investor reporting materials.
  • Collaborate with FP&A to conduct variance analysis, understand spend velocity, and prepare quarterly and annual cash forecasts.
  • Lead grant and debt administration, ensuring adherence to compliance requirements, including reporting and the preparation of reimbursement requests for government or private funding.
  • Maintain the fixed asset register to track R&D capital expenditures.
  • Ensure GAAP compliance and audit readiness, and coordinate with external partners to manage federal, state, and local tax filings.
  • Oversee internal controls to mitigate financial risk and develop standard operating procedures for all accounting and procurement workflows.
  • Lead the preparation and documentation for Federal and State R&D Tax Credits; collaborate with engineering teams to capture qualifying activities and costs to maximize tax incentives. Oversee multi-state sales and use tax compliance and manage exemption certificates for R&D-related purchases.

Ideal Experience & Skillsets

  • 5+ years of corporate accounting experience with a degree in Accounting, Finance, or a related field (CPA preferred).
  • Strong background in general ledger management and financial reporting, with a deep understanding of GAAP compliance and audit readiness (experience in a hard-tech, manufacturing, or engineering environments is ideal).
  • Advanced proficiency in accounting software/ERPs and Excel to support the financial close, data analysis, and reporting.
  • Familiarity with procurement software and the integration of PO systems with the general ledger.
  • Strong analytical skills with the ability to work collaboratively across cross-functional teams to support FP&A activities.
  • Proven experience documenting and preparing R&D Tax Credit claims, including labor allocation and qualifying research expenses (QREs).
  • Proven organizational skills to effectively oversee internal controls and document standard operating procedures.
  • A track record of thriving in a fast-paced, dynamic startup environment, demonstrating an exceptional work ethic, and the ability to take initiative.
  • Excellent oral, written, and interpersonal communication skills.
  • East coast hours are required.

Company Benefits

  • Salary range $120,000-$145,000
  • 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 120k–145k yearly

Hydrogen

Thea Energy

thea.energy

  •  Kearny, New Jersey, United States

5+ years of corporate accounting experience

UTC-05:00