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fuse

Nuclear Engineer

San Leandro, US on-site full time senior May 1, 2025

About this role

Fuse is on a mission to accelerate the world’s transition to fusion energy. Our core product is TITAN: an Impedance Matched Marx Generator (IMG). TITAN is the most efficient and powerful (TW) machine of its kind. Fusers have built and licensed Magical Unicorn and FAETON I, 2 novel pulsed power generators. You are joining an early-stage fusion company. Please expect to wear different hats and take 0 to 1 ownership of objectives. Changing the world is hard but honorable and fulfilling. You should expect to work extremely hard to make a dent. This is not a regular job. Fusers are on a mission to change the world and get shit done. We are seeking a Nuclear Engineer with expertise in particle transportation, Monte Carlo simulation, and radiation shielding to support our fusion facility. The ideal candidate will have a strong background in neutron and gamma detection, data analysis, and radiation test environments. Experience working in a combined neutron and gamma radiation environment, as found in fusion systems, is highly advantageous.  This role involves developing radiation models, optimizing shielding solutions, and ensuring radiation safety in a high-energy fusion environment. The candidate will work closely with physicists, engineers, and regulatory teams to enhance radiation transport simulations, detector performance, and measurement accuracy.  Key Responsibilities - Develop and apply Monte Carlo simulations (e.g., MCNP, Geant4, FLUKA) for particle transport, shielding, and dose assessment in a fusion facility.  - Design and optimize radiation shielding for mixed neutron and gamma environments.  - Conduct experimental validation of neutron and gamma detection systems.  - Perform radiation transport analysis to improve system performance and safety.  - Develop and maintain radiation test environments for detector calibration and material testing.  - 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.  Qualifications & Skills - Master’s or PhD in Nuclear Engineering, Physics, or a related field.  - Strong experience in Monte Carlo particle transport simulations (MCNP, Geant4, FLUKA, etc.).  - Hands-on experience with neutron and gamma detection techniques.  - Knowledge of radiation shielding, dose calculations, and safety assessments.  - Experience in radiation metrology and calibration techniques.  - Proficiency in data analysis and programming (Python, MATLAB, C++, etc.).  - Familiarity with regulatory frameworks (CNSC, NRC, IAEA standards).  Preferred Qualifications - Experience working in a fusion/fission facilities or similar combined neutron-gamma radiation environment.  - Background in high-energy neutron/Gamma transport and shielding.  - Knowledge of advanced radiation detection technologies. Additional Requirements - Must be able to travel and work extended hours/weekends as needed. ITAR REQUIREMENTS: To conform to U.S. Government technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here https://www.pmddtc.state.gov/?id=ddtc_kb_article_page&sys_id=24d528fddbfc930044f9ff621f961987.   Fuse is an Equal Opportunity Employer; employment with Fuse is governed on the basis of merit, competence, and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status. Applicants wishing to view a copy of Fuse's Affirmative Action Plan for veterans and individuals with disabilities, or applicants requiring reasonable accommodation to the application/interview process should notify the Human Resources Department at info@f.energy. If you are passionate about nuclear engineering in fusion energy and eager to work in a cutting-edge environment, we encourage you to apply!
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