Senior Neutral Beam Scientist
Eos Atomics, San Francisco, CA, United States
At Eos Atomics, we're driven to accelerate the energy transition to clean and affordable fusion energy, for a sustainable and energy-abundant future. Developing high energy, compact, and economic neutral beams is critical to this mission, and we intend to lead this segment. Our vision is to deliver 100MW of beams by 2035, and 1GW of beams by 2050. And we're building a world class team to get the job done.
Position Overview
We are seeking an experienced physicist with specialized expertise in Neutral Beam Injection (NBI) systems for plasma heating in fusion devices. The ideal candidate will lead technical development, optimization, and implementation of next-generation NBI systems that address the critical plasma heating and current drive requirements for our fusion energy program.
Key Responsibilities
Design, develop, and optimize neutral beam injection systems for plasma heating and current drive applications
Lead experimental campaigns to characterize NBI performance and integration with plasma operations
Spearhead innovative solutions to overcome challenges in beam energy, neutralization efficiency, and beam-plasma coupling
Collaborate with multidisciplinary teams including vacuum systems, power supplies, diagnostics, and plasma physics groups
Develop physics models and simulation tools for NBI system performance prediction and optimization
Author technical publications and present research findings at international conferences
Mentor junior physicists and engineers working on beam-related projects
Interface with external collaborators and vendors on NBI system components and integration
Required Qualifications
PhD in Physics, Electrical Engineering, Nuclear Engineering, or closely related field
Minimum 7+ years of hands‑on experience with neutral beam injection systems for fusion applications
Demonstrated expertise in one or more core NBI subsystems: ion sources, accelerator grids, neutralizers, beam dumps, or power delivery systems
Strong understanding of beam‑plasma interactions and the role of NBI in plasma heating, current drive, and momentum injection
Experience with relevant diagnostic techniques for beam characterization and performance assessment
Proven track record of publications in peer‑reviewed journals on NBI or related fusion technologies
Programming skills for data analysis and physics modeling (Python, MATLAB, or equivalent)
Excellent problem‑solving abilities and technical leadership
Experience with project management and coordination of technical teams
Preferred Qualifications
Experience with negative‑ion‑based NBI systems for high energy applications (>100 keV)
Background in Multicusp‑Filament, RF‑driven or other advanced ion source technologies
Familiarity with tokamak or stellarator plasma physics and operational constraints
Knowledge of beam‑line component cooling and high‑heat‑flux engineering
Experience with ITER, JET, DIII‑D, EAST, KSTAR, JT‑60SA, or other major fusion facilities
Understanding of broader fusion integration challenges and reactor‑relevant conditions
Background in relevant simulation tools (ANSYS, COMSOL, Monte Carlo beam design codes, etc.)
Builder Mentality Requirements
Self‑starter who thrives in resource‑constrained environments
Enjoys hands‑on work and isn't afraid to build, test, and iterate rapidly
Creates technical solutions that balance theoretical elegance with practical implementation
Demonstrated history of taking ownership of challenging technical problems
What We Offer
Opportunity to shape the direction of groundbreaking technology from its inception
Autonomy to build your technical team and establish engineering culture
Chance to work at the cutting edge of nuclear technology and aerospace applications
Equity package commensurate with the critical nature of this role
Competitive salary
Join us as we seek to make infinite, clean fusion power a universal reality.
#J-18808-Ljbffr
Position Overview
We are seeking an experienced physicist with specialized expertise in Neutral Beam Injection (NBI) systems for plasma heating in fusion devices. The ideal candidate will lead technical development, optimization, and implementation of next-generation NBI systems that address the critical plasma heating and current drive requirements for our fusion energy program.
Key Responsibilities
Design, develop, and optimize neutral beam injection systems for plasma heating and current drive applications
Lead experimental campaigns to characterize NBI performance and integration with plasma operations
Spearhead innovative solutions to overcome challenges in beam energy, neutralization efficiency, and beam-plasma coupling
Collaborate with multidisciplinary teams including vacuum systems, power supplies, diagnostics, and plasma physics groups
Develop physics models and simulation tools for NBI system performance prediction and optimization
Author technical publications and present research findings at international conferences
Mentor junior physicists and engineers working on beam-related projects
Interface with external collaborators and vendors on NBI system components and integration
Required Qualifications
PhD in Physics, Electrical Engineering, Nuclear Engineering, or closely related field
Minimum 7+ years of hands‑on experience with neutral beam injection systems for fusion applications
Demonstrated expertise in one or more core NBI subsystems: ion sources, accelerator grids, neutralizers, beam dumps, or power delivery systems
Strong understanding of beam‑plasma interactions and the role of NBI in plasma heating, current drive, and momentum injection
Experience with relevant diagnostic techniques for beam characterization and performance assessment
Proven track record of publications in peer‑reviewed journals on NBI or related fusion technologies
Programming skills for data analysis and physics modeling (Python, MATLAB, or equivalent)
Excellent problem‑solving abilities and technical leadership
Experience with project management and coordination of technical teams
Preferred Qualifications
Experience with negative‑ion‑based NBI systems for high energy applications (>100 keV)
Background in Multicusp‑Filament, RF‑driven or other advanced ion source technologies
Familiarity with tokamak or stellarator plasma physics and operational constraints
Knowledge of beam‑line component cooling and high‑heat‑flux engineering
Experience with ITER, JET, DIII‑D, EAST, KSTAR, JT‑60SA, or other major fusion facilities
Understanding of broader fusion integration challenges and reactor‑relevant conditions
Background in relevant simulation tools (ANSYS, COMSOL, Monte Carlo beam design codes, etc.)
Builder Mentality Requirements
Self‑starter who thrives in resource‑constrained environments
Enjoys hands‑on work and isn't afraid to build, test, and iterate rapidly
Creates technical solutions that balance theoretical elegance with practical implementation
Demonstrated history of taking ownership of challenging technical problems
What We Offer
Opportunity to shape the direction of groundbreaking technology from its inception
Autonomy to build your technical team and establish engineering culture
Chance to work at the cutting edge of nuclear technology and aerospace applications
Equity package commensurate with the critical nature of this role
Competitive salary
Join us as we seek to make infinite, clean fusion power a universal reality.
#J-18808-Ljbffr