# Computational Physicist - Company: [Fuse]() - Location: San Leandro, California - Team: Engineering / Technical Ops\. - Employment type: Full Time - Salary: $150K – $200K - Posted: August 19, 2026 ## Job description ## **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 Computational Physicist at Fuse, you'll develop the models and simulations that explore how our pulsed-power systems actually behave — turning physics, mathematics, and computational methods into predictions the team can build on. ## **Core Responsibilities** * Develop and run simulations for pulsed-power systems using MHD, PIC, and circuit models. * Utilize and modify Screamer circuit code for modeling high-voltage pulse generation and delivery. * Conduct magnetohydrodynamic (MHD) simulations to study plasma dynamics in fusion and Z-pinch configurations. * Implement and analyze particle-in-cell (PIC) simulations for plasma interactions and beam dynamics. * Model impedance matching in Marx generators and analyze energy coupling in plasma loads. * Collaborate with experimentalists to validate models and optimize system performance. * Develop custom computational tools and optimize existing codes for high-performance computing (HPC). * Analyze and interpret large data sets, extracting meaningful insights and presenting findings in clear, concise reports. * Develop software tools and algorithms to optimize simulation processes and improve computational efficiency. * Stay up to date with advancements in computational techniques, programming languages, and physical theories to apply state-of-the-art methodologies to projects. * Contribute to academic papers, technical reports, and presentations, sharing results with both internal teams and external collaborators. * Provide technical mentorship and guidance to junior team members. ## **Minimum Qualifications** * Ph.D. or M.S. in Physics, Electrical Engineering, Applied Mathematics, or a related field. * Strong background in computational plasma physics and high-energy-density physics. * Experience with Screamer, MAGIC, HYDRA, or similar circuit and plasma codes. * Proficiency in MHD and PIC simulation techniques. * Strong programming skills in Python, Fortran, C++, or MATLAB for numerical modeling. * Experience with HPC environments and parallel computing. * Strong foundation in theoretical physics, including electromagnetism, classical mechanics, statistical mechanics, or related areas. * Strong problem-solving abilities, analytical skills, and attention to detail. * Ability to present complex results to technical and non-technical audiences. ## **Preferred Qualifications** * Familiarity with Z-pinch, MagLIF, dense plasma focus devices, and fusion energy concepts. * Experience in finite element analysis (FEA) or finite difference time domain (FDTD) methods. * Knowledge of electromagnetic wave propagation and plasma-material interactions. * Experience working in experimental plasma physics or fusion research. * Strong publication record in computational physics or related fields. * Background in developing custom software tools for physical simulations. * Familiarity with version control tools and collaborative software-development practices. * Prior experience publishing research or contributing to academic journals and conferences. ## **What We Value** * Give a shit. Build things you're proud of. * Take responsibility. If something is broken and you can fix it, fix it. See things through. * Move fast. Make decisions, learn quickly, and keep moving forward. * Think bigger. Simplify relentlessly. Don't default to the safe answer. * Disagree and commit. The best idea wins. Once a decision is made, we move. * Desire to win. This is hard. Expect intensity. We are here to win. * Plan B is to make Plan A work. ## **Additional Requirements** This is not a remote position and will require relocation if not already local to the applicable Fuse facility. ## **Benefits** * Medical, dental, and vision coverage. * Relocation assistance for roles that require it. * Flexible time off. Take what you need, no accrual tracking. * 2 weeks of paid time off built into the end of each year, subject to team and business needs. * Supportive leave of absence policies. * Paid leave for new parents. ## **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. ## **Equal Opportunity** Fuse is an Equal Opportunity Employer; employment with Fuse is governed on the basis of merit, competence, and qualifications and will not be influenced by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, ancestry, immigration status, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status. ## Apply [Apply on Fuse]() Canonical job page: