Neutronics Engineer

WHO WE ARE At Proxima Fusion, we're driven by a bold mission – to redefine the future of sustainable energy. Our unique concept, built upon the groundbreaking W7-X stellarator and the latest advances in technology, paves the way for commercially viable fusion power plants. What’s more, our work in stellarator optimization, powered by cutting-edge computation and machine learning, is propelling us into uncharted territories of fusion technology. New higher performance design points are unlocked by high temperature superconducting magnets. To fully grasp this huge opportunity, we’re building a team of extremely dedicated and passionate people who come together driving something extraordinary, radically transforming technology in the world. WHY JOIN PROXIMA FUSION - You will get to work on some of the most complex tech challenges to bring abundant, safe, clean energy to the world - You'll get to join and learn from an exceptional selection of accomplished and driven individuals - Do your life’s best work and enjoy the journey - Get to show that big things are possible in Europe when you assemble the best talent YOUR IMPACT As a member of the neutronics group you will play a critical role in advancing our stellarator design. Your work will focus on analysis required for licensing and operational safety of the Alpha stellarator. You will carry out reproducible neutronics simulations and automate neutronics simulation workflows. Simulations include producing shutdown dose rate maps, unstructured mesh magnet heating, tritium breeding, DPA, activation, using both CSG and CAD-based neutronics models. The role provides a unique opportunity to work as part of an integrated design effort including machine learning experts, software engineers, fusion scientists, and fusion engineers, making a tangible impact on the future of clean energy. WHAT YOU WILL DO - Perform neutronics analysis using OpenMC and DAGMC for a range of neutron and photon responses important for stellarator optimization and design. - Contribute to the integration of neutronics analysis into automated pipelines, including programming in Python (essential skill), using version control (Git/Graphite) within a Docker environment, Programming in C++ is considered a benefit. - Perform verification and validation by comparing simulation results obtained with OpenMC to other codes and experimental data. - Construct simulation ready CAD with CadQuery and CSG geometries of the stellarator and surrounding facility. - In addition to developing in-house neutronics workflows, you may have opportunities to contribute to open-source codes we depend on for nuclear data processing, CAD conversion / meshing, and particle transport simulations. WHO YOU ARE - A PhD or Master’s degree in nuclear physics, nuclear engineering, or equivalent experience. - Experience in processing nuclear data. - Experience with the main codes that we use (OpenMC, DAGMC, CadQuery, Gmsh) for neutronics analysis. - Experience designing neutron and gamma shielding. - Experienced Python programmer using software development tools such as Git - Experience with computation in cloud or HPC environments involving numerical simulations (desirable). INTERVIEW PROCESS - Recruiter Interview (30-60 min) - Technical Screening (30 min) - Technical Panel (3x60 min) - CEO call (30 min) This role sits at L2/L3 of our framework, please inquire during the recruitment process for further information* At Proxima Fusion, our mission is bold: making limitless clean energy a reality. To get there, we need a high-performing, diverse team that brings different perspectives, challenges assumptions, and builds together with purpose. We know that diversity of thought and experience leads to better ideas, stronger execution, and a more resilient team. We don’t look at how you identify, what you look like, who you choose to worship or what ethnicity you are. We care about what you can bring to the table.