---
title: 'HTS Magnet Multiphysics Modeling Engineer at Thea Energy'
canonical: 'https://feeny.ai/job/hts-magnet-multiphysics-modeling-engineer-thea-energy-kearny-bcwgf4emdf6m'
type: 'job'
last_seen: '2026-10-14'
---

# HTS Magnet Multiphysics Modeling Engineer at Thea Energy

- **Company:** Thea Energy
- **Location:** Kearny, NJ
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-07-07
- **Last confirmed live:** 2026-10-14
- **Apply:** https://jobs.lever.co/thea.energy/d0581408-5aea-4f04-a33c-039cf756d066

## Job description

About Thea Energy: 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 a detail-oriented HTS Magnet Multiphysics Modelling Engineer to join its rapidly growing magnet engineering team. In this role, you will support the design, analysis, and testing of high temperature superconducting (“HTS”) magnets, foundational components of Thea Energy’s planar coil stellarator. You will work closely with senior engineers to develop and run HTS Magnet Engineering tools to simulate and predict magnet system performance. Candidates will need to be familiar with magnetostatic, quench and AC loss analysis techniques. This position will also require you to work closely with manufacturing and test teams to ensure analytical assumptions and test data are aligned with your analysis and simulation needs. This is an excellent opportunity for an ambitious early-career engineer or analyst to build deep expertise in HTS magnet technology within a fast-paced fusion energy company.

Key Responsibility Areas:

- Utilize your experience to develop industry state-of-the-art analytical models of HTS Magnet Systems
- Run and maintain Multiphysics simulations (e.g. Ansys EM, Structural, COMSOL) under the direction of senior engineers
- Collect, process, and analyze data from magnet design studies and test campaigns
- Build and maintain data analysis tools, scripts, and dashboards using Python or similar languages
- Support documentation of magnet specifications, test procedures, and results
- Track program metrics and help prepare progress reports against milestones
- Assist with organizing and maintaining design and test records, drawings, and vendor documentation
- Support coordination with vendors and internal stakeholders on data and documentation needs
- Identify data quality issues, trends, and anomalies and flag them to the engineering team
- Familiarity with electro-mechanical, magnetostatic, quench and AC loss analysis
- Opportunities to get involved in many aspects of the design, manufacturing and testing of these magnet systems

Ideal Experience & Skillsets:

- 1–3 years of experience in engineering, physics, or a data-analysis-focused role; internship or academic research experience with magnets, cryogenics, or electromagnetics a plus
- Proficiency with Python (or similar) for data analysis and scripting
- Familiarity with Multiphysics simulation tools (Ansys, COMSOL) or strong willingness to learn quickly
- Working knowledge of CAD software (Solidworks, CATIA, NX) a plus
- Strong analytical and quantitative problem-solving skills
- Excellent organizational skills and attention to detail
- Ability to work independently on well-defined tasks and escalate ambiguity appropriately
- Comfortable working to aggressive deadlines in a fast-paced, rapidly changing environment
- Clear written and verbal communication skills
- Genuine curiosity and desire to learn magnet engineering fundamentals
- At least a bachelor’s degree in physics, electrical engineering, mechanical engineering, materials engineering, computer science, or a related field

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.

Company Benefits:

- Salary range $85,000-$120,000
- 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.

## About Thea Energy

## Company Overview
- **One-liner**: Thea Energy is developing a simplified, economical stellarator fusion energy system using arrays of mass-manufacturable planar magnets and dynamic software controls.
- **Entity Type**: Private (Startup; founded in 2022)
- **Headquarters**: Kearny, New Jersey, USA
- **Founded**: 2022
- **Founders**: Founded with technology developed at Princeton University (specific founder names not publicly listed on main site).

## Core Business
- **Primary industry**: Fusion Energy / Clean Energy / Climate Tech
- **Target customers**: Utilities, grid operators, industrial energy users, and governments seeking baseload, zero-emission power generation.
- **Mission**: "To create a limitless source of zero emission energy for the future of humanity." [thea.energy](https://thea.energy/)

## Products & Services
- **Eos (Neutron Source Stellarator)**: A near-term commercial neutron source designed to achieve world-leading fusion performance and de-risk their first fusion power plant. [thea.energy](https://thea.energy/)
- **Helios (Fusion Power Plant)**: The company’s first planned full-scale fusion power plant, intended for commercial electricity generation. [thea.energy](https://thea.energy/)
- **Software-Defined Magnetics Platform**: The core technology differentiator—replacing complex, expensive 3D magnet coils with arrays of simpler, mass-manufacturable planar magnets controlled by a sophisticated software stack. This transfers hardware complexity into the digital realm. [thea.energy](https://thea.energy/)

## Market Standing
- **Valuation / Total Funding**: Not publicly disclosed.
- **Key Metric**: Private startup; notable for its technological breakthrough rather than public revenue. The company has active job postings (41 roles listed on Indeed) and is in a high-growth hiring phase. [indeed.com](https://www.indeed.com/cmp/Thea-Energy/about)
- **Notable Investors/Partners**: Announced a collaboration with **NVIDIA**, **Synopsys Inc**, **Argonne National Laboratory**, and **Princeton Plasma Physics Laboratory (PPPL)** to build the first digital twin of a stellarator fusion power plant using AI physics and engineering. [indeed.com](https://www.indeed.com/cmp/Thea-Energy/about)
- **Growth Signals**: Rapidly growing team; active hiring across engineering, supply chain, finance, and marketing roles; partnership with major tech and national lab players; progression from a science project (Eos) toward a commercial power plant (Helios).

## Competitive Advantages
- **Planar Magnet Arrays**: Replaces the prohibitively complex and expensive 3D coils of traditional stellarators with simple, mass-manufacturable planar magnets. This radically reduces cost and manufacturing complexity. [thea.energy](https://thea.energy/)
- **Software-First Approach**: Transfers the geometric complexity from hardware to a dynamic software control system, leveraging decades of progress in computing and controls to simplify the physical build. [thea.energy](https://thea.energy/)
- **Stellarator Advantage**: The stellarator is the only magnetic confinement system that creates all required fields with superconducting coils, enabling steady-state operation (no plasma disruptions), which is a key advantage over tokamaks. [thea.energy](https://thea.energy/)

## Strategic Focus
- **Commercialization of Eos**: Achieving near-term fusion performance and commercial operation with their neutron source stellarator.
- **De-risking Helios**: Using Eos as a stepping stone to validate technology and reduce risk for their first full-scale fusion power plant.
- **Digital Twin Development**: Leveraging AI and simulation (with NVIDIA, Synopsys, Argonne, PPPL) to accelerate design, operation, and optimization of their fusion systems.
- **Scaling the Organization**: Building out a multi-disciplinary team spanning fusion science, engineering, supply chain, and business functions.

## Why Work Here
- **Mission-Driven Work**: Opportunity to work on one of the biggest challenges facing humanity—creating limitless, zero-emission energy. [thea.energy](https://thea.energy/careers/)
- **Culture**: Described as dynamic, flexible, and adaptive, balancing strong individual autonomy with a collective team spirit. Employees are empowered to take ownership of their career growth. [thea.energy](https://thea.energy/careers/)
- **Diversity & Inclusion**: Explicitly committed to building a diverse workplace and encourages applications even if candidates don't meet every listed requirement. [thea.energy](https://thea.energy/careers/)
- **Work Model**: Roles are listed as **On-site** in Kearny, NJ (for most technical and corporate roles) and some internships. [jobs.lever.co/thea.energy](https://jobs.lever.co/thea.energy)
- **Benefits**: Competitive salaries, health benefits (medical/dental/vision), employee equity, 20 days PTO, paid holidays and sick time, paid parental leave, 401k, life and disability insurance, and office perks. [thea.energy](https://thea.energy/careers/)

## Sources
1. [thea.energy](https://thea.energy/)
2. [thea.energy/about-us](https://thea.energy/about-us/)
3. [thea.energy/careers](https://thea.energy/careers/)
4. [jobs.lever.co/thea.energy](https://jobs.lever.co/thea.energy)
5. [indeed.com](https://www.indeed.com/cmp/Thea-Energy/about)

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