Medior-Senior Core Physics and Radiation Protection Engineer

Job description

Do you want to contribute to the development of a new energy technology that can safely turn nuclear waste into emission-free energy? Are you excited about working in a hands-on deep tech start-up team that aims to make a huge impact? Do you like complex challenges? Then, we might be just the company you are looking for!

We are looking for a driven medior-senior core physics and radiation protection engineer to join our innovative and international team in Lyon.

About Thorizon

At Thorizon, we’re a passionate and rapidly growing team of 40, in Amsterdam and Lyon, all working together to develop a new nuclear power solution. We design and create frontier technology for Molten Salt Reactors (MSR).

Our purpose is to accelerate the availability of clean and affordable energy and help solve the climate crisis.

We are in the development phase and aim to solidify our design through analyses, experiments, simulations, and partnerships. At Thorizon, we believe a strongly coupled multidisciplinary technology development requires a culture of full openness and transparency. That’s why we foster values like unity, communication, and support to ensure we grow together as a team while achieving our purpose.

Your mission

Are you passionate about core physics, radiation protection and criticality? Do you get energized when working on innovative solutions?

You will contribute to core physics, neutronic and radioprotection analyses for the development and optimization of molten salt technology. This includes the development of molten salt reactor computer models and analyses to simulate core physics system behaviour, safety and performance, as a basis for component and system design, fuel cycle design, safety case demonstration and licensing.

You will get the unique opportunity to develop your ideas, explore many sides of the business, and play a crucial role in the company’s growth.

In this role you will:

· Set up an effective core physics computational train, using both probabilistic (MCNP, SERPENT for example) and deterministic approaches (APOLLO3, SCALE for example), as well as providing numerical/physical insights and practical approaches to establish appropriate coupling with thermohydraulics for effective transient analyses.

· Set up and maintain scientific computing environments on Linux, including installing and configuring scientific software, libraries, and data analysis tools.

· Contribute to definition and justification of the safety case.

· Contribute to or establish effective exchange with other codes and results from other disciplines, such as thermohydraulics, salt composition chemistry and structural mechanics.

· Set up core radiation protection or criticality models for simulation of shutdown, storage, handling and transport

· Interface and exchange data and information with other functional/system teams, potential component and service suppliers and development partners.

· Define work packages for our partners and subcontractors and manage their execution.

· Guide junior colleagues in the same discipline.

· Create transparency on development progress, identify issues and challenges, and propose solutions that will help team problem-solving and design iteration.

· Implement a learning loop and ensure lessons learned are systematically integrated in way of working and the design itself.

· Contribute to software V&V (following ASN guideline 28, e.g. computing and reducing uncertainties on nuclear data), ensuring analysis robustness and validity.

· Automate the studies and their pre- and post-processing.

· Report to the Core Physics lead, and work in different project teams.