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Diagnostic Physicist - (Ion Doppler Spectroscopy)

General Fusion

General Fusion

Richmond, BC, Canada
USD 115k-135k / year
Posted on Jan 15, 2026

About Us:

Established in 2002, General Fusion is a global leader in the race to commercialize clean fusion energy. We are pursuing a uniquely practical approach, Magnetized Target Fusion, and aim to provide zero-carbon fusion power to the grid in the early to mid-2030s. Today at our state-of-the-art labs in Richmond, BC, we’re operating a groundbreaking fusion demonstration machine called Lawson Machine 26 (LM26), designed to achieve transformational technical milestones and accelerate General Fusion’s technology to commercialization. Our path to market is funded by a global syndicate of leading energy venture capital firms, industry leaders, and technology pioneers. Learn more at www.generalfusion.com.

Position Overview:

We are seeking an experimental physicist or engineer with a strong background in physics to join our Plasma Diagnostics Team as a plasma diagnostician. The diagnostician will assist in maintaining, analyzing, and developing diagnostics to measure the properties of magnetized plasmas. The diagnostician will take ownership of the UV-visible ion Doppler spectroscopy diagnostic system, providing calibrated and processed experimental data with known lineage and error. This position will involve collaboration with external experts in academia and industry.

Responsibilities:

  • Responsible for the ion Doppler spectroscopy plasma diagnostic systems used to measure ion temperature and rotation velocity. Responsible for planning, designing, operating, troubleshooting, and ensuring the data quality of diagnostic systems.
  • Support other spectroscopy diagnostic systems and spectroscopy data analysis.
  • Drive improvement of diagnostic measurement by developing, testing and implementing design improvements.
  • Develop and maintain data processing and analysis code.
  • Manage collaborations with external parties to develop and validate the diagnostic.
  • Documentation and communication of designs and results
  • Analyze data. Extend our understanding of plasmas and plasma compression by relating experimental data with theory and simulation
  • Assist in the assembly, testing, installation, calibration, and operation of diagnostic equipment as needed.
  • Other tasks as assigned.

Requirements:

  • MSc or PhD in physics, engineering physics or related field
  • Minimum 3 years relevant work experience in a physics laboratory environment, carrying out physical experiments and analyzing measured data
  • Experience working with optical systems and spectrometers.
  • Experience with UV compatible optical components, e.g. fibers, windows, lenses.
  • Experience in designing, testing and debugging instrumentation for experimental or industrial settings.
  • Ability to manage multi-disciplinary projects in collaboration with external parties
  • Ability to translate basic mathematical and physics concepts into real-world applications
  • Strong programming skills. Experience with Python.
  • Strong analytical and problem-solving skills
  • Comfortable in a fast-paced startup environment
  • Proven ability to work well within a team
  • Strong communication skills.
  • Background in plasma diagnostics. Experience working hands-on with plasma diagnostic systems an asset.
  • Experience with visible/UV spectroscopy and X-ray spectroscopy. Experience with working with spectrometers, fiber optics preferred.
  • Experience with Zemax or equivalent optical design software preferred.
  • Familiarity with data acquisition hardware, signal processing, and/or EM noise treatment preferred.
  • Experience in scientific writing of manuscripts and reports, and presentation of scientific findings preferred.
  • Good understanding of statistics and error analysis preferred.
  • SolidWorks or similar CAD software preferred.

The typical hiring range for this position is $115,00 - $135,000. General Fusion considers many factors when determining total compensation, including job-specific or highly specialized knowledge, skills and experience, proficiency, job location and internal equity.

What We Offer:

  • Flexible hours
  • Four weeks’ vacation
  • Comprehensive benefits package
  • RRSP Contribution
  • Support for professional development
  • Great company culture – social events, food trucks, bike rides, Sun Run, etc.

Applications:

We thank all applicants for their interest; only those selected for an interview will be contacted.