Overview Join Helion to advance plasma diagnostics for fusion generators at Everett. You will design, deploy, calibrate, and interpret diagnostic systems across experiments and testbeds, collaborating with cross-functional teams. Your work will drive real-time insights into plasma behavior and inform performance optimization for the Polaris program. This on-site role offers impact on a mission to deliver unlimited clean electricity and shape next-generation fusion devices.
Compensation / Benefits- Medical, Dental, and Vision plans
- 31 Days of PTO (21 vacation, 10 sick)
- 10 paid holidays + winter break
- Up to 5% employer 401(k) match
- Short term disability, long term disability, and life insurance
- Paid parental leave (up to 16 weeks)
Responsibilities- Lead design, build, deployment, calibration, and commissioning of plasma diagnostic systems for fusion generators
- Serve as a go-to technical contributor for a defined diagnostics scope to evaluate density, temperature, current profiles, and other KPIs
- Partner cross-functionally with plasma physics, machine operations, controls, mechanical and electrical engineering, and data science teams
- Develop expertise in pre-ionization plasma diagnostics and establish best practices for future device development
- Analyze diagnostic data in real time to extract insights, inform tuning, and identify optimization opportunities
- Contribute to best practices, documentation, and internal methods to improve consistency, reliability, and scalability of diagnostics across experiments
Key requirements- Ph.D. in physics, electrical engineering, aerospace engineering, or related discipline with focus on plasma science, diagnostics, or high-vacuum instrumentation
- 3+ years of experience with plasma systems, high-vacuum/pulsed-power/complex experimental hardware
- Hands-on experience designing, building, calibrating, troubleshooting, or operating plasma diagnostics (e.g., interferometry, spectroscopy, Langmuir probes, magnetic/electrostatic/optical diagnostics)
- Ability to independently lead complex technical workstreams while collaborating with cross-functional teams
- Cross-functional collaboration
- Independent problem-solving and initiative
- Effective communication and documentation
- Interferometry
- Spectroscopy
- Langmuir probes
