Director - Systems Engineering
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 seeking a Director - Systems Engineering who will be responsible for the systems engineering of the company's integrated fusion systems and prototypes. In this role, you will lead an interdisciplinary team to integrate first-of-a-kind technologies into a scalable fusion power plant architecture.
You will also be responsible for ensuring that all applicable Company engineering disciplines are integrated across workflows, requirements, interfaces, and standards. You will lead, mentor, and develop a high-performing team of systems engineers, and foster a collaborative and innovative work environment capable of solving the complexities of fusion energy.
The ideal candidate is a high-autonomy leader who can move quickly to scale a leading team and implement the rigorous systems engineering frameworks required to commercialize fusion energy at scale. You will serve as a mentor, a strategist, and the primary advocate for systems-level thinking across the entire organization.
Key Responsibility Areas
- Manage technical baselines including requirements, interfaces, configurations, KPIs, data management, standards, protocols & procedures, and verification & validation processes.
- Establish and manage processes and tools across the product development and operational lifecycle.
- Efficiently and systematically convert functional requirements into a scalable system architecture and execution strategy.
- Ensure seamless integration between the physics, engineering, manufacturing, construction, and test/ops teams.
- Work with leadership and program management to develop and manage protocols for making and tracking key decisions and change control management, ensuring transparency and accountability across the company.
- Ensure the efficient and systematic conversion of functional requirements into a scalable system architecture and execution strategy.
- Own architecture PBS and WBS.
- Build a high-performance systems engineering team. Identify skill gaps and strategically grow the department to meet program milestones.
- Actively coach and mentor junior and senior engineers. Create professional growth plans and foster a culture of technical excellence and collaboration.
- Develop the internal framework for the systems engineering group, defining roles, responsibilities, and ensure maximum efficiency and transparency across the organization.
- Set clear KPIs for the team, conduct regular performance reviews, and manage resource allocation across various technical workstreams.
- Promote a collaborative, "fail fast, learn faster" environment while maintaining a relentless focus on safety and rigorous engineering standards.
- Coordinate with suppliers, vendors, and internal manufacturing engineering teams.
- Coordinate design reviews and program management functions.
Ideal Experience & Skillsets
- First-of-a-Kind (FOAK) Experience: Proven experience integrating large-scale, complex R&D projects (e.g., aerospace, particle accelerators, nuclear, or advanced manufacturing).
- Technical Breadth: Deep familiarity with mechanical, electrical, fluid, and control systems. Experience with Siemens NX or similar PLM/CAD tools is essential.
- Proven Management Track Record: 8+ years of engineering experience, including 3+ years in a formal people-leadership role (lead, manager, director, or VP).
- Strategic Mindset: Can see the "big picture" of the fusion pilot plant while ensuring the team executes on the smallest interface details.
- Adaptability: Thrives in a fast-paced, "many hats" startup environment where priorities can shift rapidly.
- Collaboration: A team player who views the success of the physics and manufacturing teams as their own success.
- Communication Excellence: Ability to translate complex technical trade-offs into actionable insights for executive leadership and non-technical stakeholders.
- Interpersonal Skills: A "servant leader" mindset with a track record of helping others succeed and navigating complex team dynamics.
- Safety Mindset: Prioritization of safety and reliability in high-energy or hazardous environments.
- Education: Bachelor's degree or greater in a relevant engineering field.
- Occasional travel and the ability to lift up to 50 lbs in a lab/industrial setting.
Company Benefits
- Salary range $135,000-$250,000
- 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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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 7, 2026
Full time
Company
- Kearny, New Jersey, United States
8+ years of engineering experience, including 3+ years in a leadership role
UTC-05:00