---
title: 'Radiation Safety Officer at Thea Energy'
canonical: 'https://feeny.ai/job/radiation-safety-officer-thea-energy-kearny-9mba1af1yx06'
type: 'job'
last_seen: '2026-11-04'
---

# Radiation Safety Officer at Thea Energy

- **Company:** Thea Energy
- **Location:** Kearny, NJ
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-11-03
- **Last confirmed live:** 2026-11-04
- **Apply:** https://jobs.lever.co/thea.energy/dc81dd52-671d-4259-bd78-9239679f6090

## 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.

Key Responsibility Areas:

- Serve as the designated Radiation Safety Officer for licensed radioactive material programs
- Establish and implement Thea Energy’s radiation protection program, including procedures and processes supporting tritium processing operations
- Ensure compliance with NRC, Agreement State, DOE, DOT, EPA, OSHA standards (e.g., 10 CFR Part 20, ICRP, and ANSI)
- Establish and administer ALARA principles, radiation monitoring, dosimetry, and radiological programs and controls to protect workers, the public and the environment
- Evaluate radiological instrumentation and monitoring systems to ensure adequacy and compliance with site requirements
- Develop and deliver radiation safety training programs to personnel on radiological protection principles, standards, and procedures
- Oversee the radioactive waste management program, including storage, decay- in-storage, and disposal in accordance with regulatory requirements
- Provide oversight during radiological remediation and support emergency response activities involving radioactive materials
- Support licensing and regulatory interactions related to radiation protection
- Build and lead the radiation protection function and team over time as operations grow

Ideal Experience & Skillsets:

- BS/BA or advanced degree (master's or doctorate) in science or engineering, health physics, radiation protection, or a closely related field.
- 8+ years of experience in radiation protection, health physics, or a closely related field.
- Previous experience as an RSO/Radiation Protection Program Manager at an NRC-licensed facility, DOE site, national laboratory, or comparable regulated nuclear environment
- Relevant certifications or credentials (e.g., NRRPT, CHP)
- Direct experience with tritium processing operations; OR equivalent experience with other radioactive or hazardous materials in a regulated environment
- Skilled in interpreting radiation protection data and applicable regulations, including NRC and DOE (e.g., 10 CFR Part 20 and ANSI), and translating requirements into practical procedures
- Familiar with radiation physics, dosimetry equipment, radiation detection instruments, and compliance management system

Preferred Skills:

- Experience standing up or significantly expanding a radiation protection program, particularly in a fast-paced, resource-constrained, or startup environment
- Advanced degree in health physics, radiation science, or a related field

Company Benefits:

- Salary range $140,000 - $170,000
- Comprehensive health benefits (e.g. medical/dental/vision)
- Employee equity stock options
- 20 days PTO

## 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)

## Other roles at Thea Energy

- [Program Controls Lead](https://feeny.ai/job/program-controls-lead-thea-energy-kearny-y7xtzph15yea) — Kearny, NJ
- [Director - Divertor and Plasma Material Interactions](https://feeny.ai/job/director-divertor-and-plasma-material-interactions-thea-energy-kearny-rjksbza2ekty) — Kearny, NJ
- [IT Intern](https://feeny.ai/job/it-intern-thea-energy-kearny-newnw5sj651r) — Kearny, NJ
- [Senior Technical Program Manager](https://feeny.ai/job/senior-technical-program-manager-thea-energy-kearny-b3w70ca7w66b) — Kearny, NJ
- [Senior Test Technician](https://feeny.ai/job/senior-test-technician-thea-energy-kearny-hf8wgcsvg73w) — Kearny, NJ
- [Control Systems Manager](https://feeny.ai/job/control-systems-manager-thea-energy-kearny-15pbgj298kfp) — Kearny, NJ
- [Electrical Engineering Manager](https://feeny.ai/job/electrical-engineering-manager-thea-energy-kearny-3emjnega92wp) — Kearny, NJ
- [FEA Engineer III](https://feeny.ai/job/fea-engineer-iii-thea-energy-kearny-bmctb2x060zd) — Kearny, NJ
- [Senior FEA Engineer](https://feeny.ai/job/senior-fea-engineer-thea-energy-kearny-xcmsm1bk4pw5) — Kearny, NJ
- [Mechanical Engineer III](https://feeny.ai/job/mechanical-engineer-iii-thea-energy-kearny-paan6y8jt8vg) — Kearny, NJ