Nuclear Engineering Internship - Summer 2027

Company Overview

Kairos Power is a new nuclear energy technology and engineering company whose mission is to enable the world’s transition to clean energy, with the ultimate goal to dramatically improve people’s quality of life while protecting the environment. This goal will be accomplished through the commercialization of the fluoride-salt-cooled, high-temperature reactor (FHR) that can be deployed with robust safety, affordable costs, and flexible operation to accommodate the expansion of variable renewables.

Please note: This is a pipeline posting for anticipated Summer 2027 internship opportunities. Applications will be reviewed on an ongoing basis as internship positions are approved and hiring needs are identified.

Kairos Power is offering exciting opportunities for students to join our Nuclear Engineering organization for Summer 2027. This internship provides a unique opportunity to contribute to the development of the analytical tools, computational methods, and engineering infrastructure supporting the safety case for the Hermes Reactor and future commercial reactor fleet.

Interns will work alongside experienced engineers and scientists on meaningful technical projects involving reactor physics, thermal hydraulics, structural materials, computational modeling, licensing, and nuclear safety analysis. Contributions from each intern play an important role in advancing Kairos Power's mission to deliver innovative nuclear technology that addresses climate change.

• Core Design (Radiation Transport and Shielding Design, Radiation Detection, Reactor Physics (Neutronics and Thermal Hydraulics), and Fuel Cycle Analysis)

• Thermal and Safety Methods - KP-SAM Code Development

• Fuel Performance - KP-BISON

• Source Term Modeling Development

• Structural Materials Analysis

• Computational Fluid Dynamic (CFD) Methods and Analysis

• Nuclear Critical/Safety Analysis

• Licensing Engineering

• Overall Analysis support such as Piping and Layout Analysis and Thermal Design and Rapid Technology Development Analysis

General Responsibilities

• Support the design, development, verification, and validation of analytical tools, computational models, and engineering methods supporting reactor safety and performance analyses.

• Perform engineering analyses and computational modeling related to assigned technical focus areas such as reactor physics, radiation transport, thermal hydraulics, structural mechanics, computational fluid dynamics, or nuclear safety.

• Assist with research and technology development projects focused on improving reactor safety, performance, efficiency, and commercialization.

• Support verification and validation of engineering models through comparison with experimental data, benchmark problems, or reference solutions.

• Analyze engineering data and prepare technical documentation supporting engineering decisions and technology development.

• Collaborate with multidisciplinary engineering teams to solve complex technical challenges and support project objectives.

• Prepare technical reports, engineering calculations, presentations, and project documentation to communicate technical results and recommendations.

• Participate in technical reviews, team meetings, and cross-functional discussions to broaden understanding of multidisciplinary reactor engineering.

• Engage in training, mentorship, and continuous learning opportunities to strengthen technical and professional development.

• Maintain accurate engineering documentation and organized project records supporting knowledge transfer and engineering