Neutronics Engineer

Gauss Fusion; München; On-site; EUR 75,000 - 95,000; Full time

Job summary

Gauss Fusion GmbH seeks a Nuclear & Neutrons Engineer to shape design, safety, and performance of core fusion systems. You will develop technologies for blankets, shielding, and divertor components while pursuing commercialization and industrialization.

Responsibilities include detailed neutronics analyses, Monte Carlo simulations, HPC scaling, and cross-disciplinary collaboration with thermal, mechanical, and materials engineers. Proficiency in Python scripting and data processing is essential.

Responsibilities

• Develop technologies for breeding blankets, first-wall structures, shielding, divertor systems, and other auxiliary components with commercialization and engineering readiness in mind.
• Perform detailed neutronics analyses for stellarator fusion systems, including 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 with thermal, mechanical, and materials engineers to support coupled multiphysics analyses.
• Python scripting/automation to support and document simulation workflows (e.g., Jupyter Notebooks).
• Work within a multidisciplinary team, requiring creativity, persistence, and systems thinking.

Job description

Gauss Fusion GmbH is advancing a commercially scalable stellarator fusion power. Our team brings together leading expertise in fusion physics, advanced engineering, computations, and industrial manufacturing. We are now seeking a Nuclear & Neutronics Engineer to help shape the design, safety, and performance of our core fusion systems.
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!

• 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.

• 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