Radiation Safety Officer

Thea Energy is building an economical and scalable fusion energy system utilizing arrays of mass manufacturable magnets and dynamic software controls. Commercial fusion energy can uniquely provide a abundant source of zero-emission power for a sustainable future. Thea Energy is leveraging recent breakthroughs in computation and controls to reinvent the stellarator, a scientifically mature form of magnetic fusion technology. Thea Energy was founded in 2022 as a spin-out of the Princeton Plasma Physics Laboratory and Princeton University, where the stellarator was originally invented. Thea Energy is currently designing its first integrated fusion system, Eos, based on its planar coil stellarator architecture which will produce fusion neutrons at scale and in steady-state.

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

BS/BA or advanced degree (masters 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

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

Salary range $140,000 - $170,000

Comprehensive health benefits (e.g. medical/dental/vision)

Employee equity stock options

20 days PTO