Terrestrial Energy · 22 hours ago
Thermal Hydraulics Intern
Charlotte, North Carolina, United States
Internship
Onsite
InternTerrestrial Energy is a US developer of advanced, Generation IV nuclear reactors, seeking a Thermal Hydraulics Intern to assist in the design and analysis of heat transfer systems for their reactor technology. The role involves modeling, simulation, documentation, and collaboration with various teams to support the development of the Integral Molten Salt Reactor (IMSR).
Clean EnergyCleanTechEnergyGeothermal EnergyNuclearRenewable Energy
No H1B
U.S. Citizen Only
Responsibilities
Develop thermal hydraulic models in system level thermal hydraulic codes such as Flownex and GOTHIC
Perform steady state and transient simulations, sensitivity analysis, and optimization studies to improve designs
Perform hand calculations and employ software for basic thermal hydraulic systems such as heat and mass balances and heat exchangers
Develop code in various programming languages to support simulations
Perform code-to-code validation with CFD models
Prepare simulation results reports, assessment reports and design documents
Create clear visualizations and presentations of simulation results to peers and management to support decision making
Review research on existing methodologies and operation experience related to nuclear engineering and molten salt applications
Work closely with members of the Thermal hydraulic team, as well as cross-collaboration with the R&D, Physics, Safety, and Mechanical disciplines
Support design by participating in design reviews and technical meetings
Interface with external partners including national laboratories
Qualification
Required
Actively working towards an undergraduate or graduate degree in mechanical, chemical or nuclear engineering, or science degree
Project or co-op experience involving fluid dynamics and heat transfer principles
Experience with code or software solving 1-dimensional thermal hydraulic systems
Strong analytical and problem-solving skills
Working knowledge of any programming language such as C#, C++ or Python
Extensive knowledge of thermodynamics and heat transfer fundamentals
Experience with data analysis and validation
Skills and ability to learn new technology
Strong problem identification and problem resolution skills
Clear technical writing and documentation skills
Strong attention to detail and commitment to quality
Flexibility to adjust to shifting priorities and deadlines
Exceptional interpersonal and communication (both written and verbal) skills
Skilled at developing and maintaining strong relationships across all levels of the organization and with external customers and vendors
Preferred
Senior students preferred
Working knowledge of system level thermal hydraulic codes such as Flownex, GOTHIC, or RELAP5
Experience with CAD software (SolidWorks, Inventor, or similar)
Familiarity with data analysis or FEA tools (ANSYS, MATLAB)
Education in the nuclear field
Working toward a professional engineering designation
Design / refurbishment experience of nuclear reactors
Knowledge of molten salt nuclear reactor working principles
Knowledgeable in the working principles of pumps and heat exchangers
Benefits
Mentoring/Coaching with Senior Employees/Leaders
Collaborative and supportive work environment
Opportunities to network across departments
Hands-on experience with real projects
Company
Terrestrial Energy
Terrestrial Energy is a developer of a reactor power plant technology to provide carbon-free energy for the global industry.
Founded in 2013
51-200 employees
Funding
Current Stage
Public CompanyTotal Funding
$156.58MKey Investors
US Department of EnergyStrategic Innovation Fund
2025-10-28Post Ipo Equity· $50M
2025-10-28IPO
2025-07-15Series Unknown· $25.8M
Leadership Team
David LeBlanc
President, CTO
David O'Keefe
Vice President, Business Development and Project Management
Recent News
2026-01-23
GlobeNewswire
2026-01-22
2026-01-20
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