About the role

This is an opportunity to work at the frontier of fusion energy, developing critical components for a future stellarator based fusion power plant, while contributing to Europe’s most ambitious energy initiative right now!

Main responsibilities

Develop technologies for breeding blankets, first-wall structures, shielding, divertor systems, and other auxiliary components, with a strong focus on commercialization, industrialization, and engineering readiness.
Perform detailed neutronics analyses for stellarator fusion systems, including complex CAD geometries and volumetric plasma neutron sources.
Design, run, and optimize Monte Carlo simulations, and clearly present results to technical and non-technical stakeholders.
Scale and refine neutronics simulations for high-performance computing (HPC) environments.
Collaborate closely with thermal, mechanical, and materials engineers to support coupled multiphysics analyses
Python scripting/automation to support and document simulation workflows with the use of e.g. Jupyter Notebooks
Work within a highly collaborative, multidisciplinary team tackling challenges with no established blueprint, requiring creativity, persistence, and systems thinking.

Qualification and educational requirements

Master’s degree or higher in nuclear engineering, nuclear and/or particle physics, astroparticle physics, fusion engineering or related field.
Strong understanding of nuclear physics with a focus on interaction of fast neutrons with matter
High proficiency with Monte Carlo neutronics tools such as OpenMC and MCNP or PHITS
Demonstrated experience with advanced neutronics workflows (e.g., large-scale CSG models, DAGMC, CAD to CSG conversion, unstructured mesh) and application of variance reduction methods (e.g., weight windows)
Experience with advanced data reduction and processing (NumPy, Pandas, Matplotlib, SciPy)
Experience with working in Linux operating systems
Proficiency in 3D CAD modelling tools (e.g. FreeCAD)
Proficiency in 3-D meshing of CAD models

Competences and preferred skills

Familiarity with HPC environments.
Experience coupling neutronics tools with multiphysics frameworks (e.g., COMSOL, MOOSE).
Experience with depletion, activation and shut down dose rate calculations.
Basic knowledge in fusion related materials and components.
Understanding of tritium transport/retention modelling on component level.
Ability to coordinate with other engineering disciplines as part of the analysis of various components.
Excellent problem-solving skills and attention to detail.