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Helion Energy Logo

Nuclear Engineer - Diagnostics/Data Science

Helion Energy

$102,000 - $130,000
Dec 16, 2025
Everett, WA, US
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Helion is looking to solve the problem of building the world's first fusion power plant, enabling a future with unlimited clean electricity.

Requirements

  • 3+ years of experience writing scripts to analyze data using Python, MATLAB, C++, or a similar language. Techniques include vectorization, reading/writing data files in loops, and version control using tools such as SVN or git repositories
  • Experience solving multivariate optimization problems using methods such as gradient descent or genetic algorithms
  • Experience building neural networks to predict outputs from simulation inputs or to process noisy diagnostic data
  • Hands-on experience analyzing diagnostic data or running plasma simulation codes
  • Diagnostic data experience includes: processing signals from digitizers/oscilloscopes, performing data cleaning (e.g., pile-up rejection), and deriving physical insights
  • Plasma code experience including: running MHD or PIC codes, modifying input files, operating in Linux environments, and analyzing raw outputs to extract plasma parameters

Responsibilities

  • Develop neural nets to predict plasma simulation outputs from inputs. Adapt such neural nets to be training tools for new operators to develop intuition on FRC formation and translation
  • Write algorithms to extract information from noisy diagnostic data. E.g., recover individual pulse information from piled-up signals
  • Perform multivariate optimizations as part of design processes and data analysis. E.g., optimize machine operating settings, machine architecture trades, or shield designs parameters
  • Operate and analyze nuclear and plasma diagnostics on test beds and Helion's fusion systems: Polaris and Orion
  • Run and analyze MHD or PIC plasma simulation codes

Other

  • Master's degree in nuclear engineering, plasma physics, or equivalent experience documented by a presentation at a technical conference
  • 31 Days of PTO (21 vacation days and 10 sick days)
  • 10 Paid holidays, plus company-wide winter break
  • Up to 5% employer 401(k) match
  • Paid parental leave and support (up to 16 weeks)