Nuclear Engineer

ABOUT FUSE We are building one of the most potentially consequential companies of the century. Our mission is to accelerate the world's transition to fusion energy while safeguarding humankind. This is not a normal company. This is not a normal job. We are committed for the long term to win. ABOUT THE ROLE As a Nuclear Engineer at Fuse, you'll bring expertise in particle transport, Monte Carlo simulation, radiation shielding, and radiation diagnostics to our fusion facility. You'll develop and implement radiation diagnostics for facility operations and experimental characterization and work closely with physicists and engineers to advance our diagnostic capabilities. CORE RESPONSIBILITIES Implement and optimize neutron and gamma diagnostic systems for radiation characterization in fusion experiments and conduct experimental validation of neutron and gamma detection systems. Analyze radiation data to support experimental campaigns, including source characterization, spectral unfolding, and spatial/temporal diagnostics. Perform radiation-transport analysis to improve system performance and safety. Develop and maintain radiation test environments for detector calibration and material testing. Develop and apply Monte Carlo simulations such as MCNP, Geant4, or FLUKA for particle transport, shielding, dose assessment, and detector performance. Design and optimize radiation shielding for mixed neutron and gamma environments. Support meteorological assessments related to radiation dispersion and environmental safety. Analyze radiation data for operational safety, shielding effectiveness, and compliance with regulatory requirements. Collaborate with multidisciplinary teams on fusion technology development and radiation-safety initiatives. MINIMUM QUALIFICATIONS Master's or PhD in Nuclear Engineering, Physics, or a related field. Strong experience in Monte Carlo particle-transport simulations using MCNP, Geant4, FLUKA, or similar tools. Hands-on experience with neutron and ga