Design Physicist - LPI and Low-Density Plasmas
Inertia
Design
Livermore, CA, USA
Posted on Jan 6, 2026
Location
Livermore
Employment Type
Full time
Location Type
On-site
Department
Physics
Overview:
We are seeking a Design Physicist to study laser–plasma interaction (LPI) and laser propagation physics relevant to Inertial Fusion Energy (IFE). This role focuses on understanding laser absorption, speckle formation, parametric instabilities, and hot-electron generation in laser-generated plasmas, to improve coupling efficiency and predictive modeling of Inertia’s fusion targets. You will work closely with the systems modeling and laser science teams to reconcile the target design and laser architecture for manageable LPI.
Primary Responsibilities:
Studying speckle formation and beam smoothing in high-powered laser systems
Using simulation tools, such as pF3D, to estimate laser propagation and instability growth for Inertia
Collaborating with LLNL on an Inertia-LLNL contract to model LPI using LLNL simulation capabilities.
Designing and analyzing laser–plasma experiments to study energy coupling, instability mitigation, and cross-beam energy transfer, integrating insights into the laser system and target design.
Qualifications:
Required:
PhD in Physics, Applied Physics, Nuclear Engineering, or related field.
Strong foundation in plasma physics and computational modeling.
Background in laser–plasma interaction or inertial confinement fusion research.
Experience with simulation tools or programming (Python, C++, or equivalent).
Preferred:
Familiarity with Maxwell–Vlasov (MV), MVFP, and PIC codes
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Strong communication and teamwork skills.
Salary & Benefits:
We offer an excellent benefits program, including Medical, Dental, and Vision plans, company-paid holidays, matching 401k, and more!
About Inertia:
Inertia is taking the most direct, scientifically-proven path to commercializing fusion, leveraging the only successful achievement of fusion ignition, using a process that was pioneered at the U.S. Department of Energy’s (DOE) Lawrence Livermore National Laboratory (LLNL). With groundbreaking innovation, transformative technology, and multi-year investment, Inertia is committed to commercializing fusion energy in the next decade.