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. Powered by cutting‑edge computation and machine‑learning, we are unlocking new high‑performance design points with high‑temperature superconducting magnets, and building a dedicated team that will radically transform technology in the world.
Why Join Proxima Fusion
* You will work on some of the most complex tech challenges to bring abundant, safe, clean energy to the world.
* You’ll join and learn from an exceptional selection of accomplished and driven individuals.
* Do your life’s best work and enjoy the journey.
* 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 the analysis required for licensing and operational safety of the Alpha stellarator. You will carry out reproducible neutronics simulations and automate neutronics simulation workflows, 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 optimisation and design.
* Contribute to the integration of neutronics analysis into automated pipelines, including programming in Python (essential), 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 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 (3 × 60 min)
* CEO call (30 min)
At Proxima Fusion, our mission is bold: making limitless clean energy a reality. To achieve this, we need a high‑performing, diverse team that brings different perspectives, challenges assumptions, and builds together with purpose. We value what you can bring to the table and do not discriminate on any grounds.
Seniority Level
Mid‑Senior level
Employment Type
Full‑time
Job Function
Engineering and Information Technology
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