# Senior Experimental Scientist at Helion

- Company: Helion
- What the company does: Helion is building the world's first fusion power plant to deliver clean, reliable, and abundant electricity to the grid. Backed by Lightspeed, Peak XV and SoftBank VF.
- Company website: https://helionenergy.com/
- Type: Startups
- Level: Senior
- Location: Everett, WA
- Work setup: On-site
- Pay: $210K to $250K base salary per year (USD)
- Posted: 2026-06-01
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/helion/a325fe3e-e975-49a8-9a86-7169d279bacd
- Page: https://www.1752.vc/careers/jobs/helion-senior-experimental-scientist/

## About the role

Helion is hiring a Senior Experimental Scientist to support and advance the plasma diagnostics capability for Helion’s fusion generators. In this role, you will be a key technical contributor for the design, deployment, calibration, and interpretation of plasma diagnostics across experimental campaigns and testbeds. This is an onsite role that reports directly to our Director of Plasma and Nuclear Science at our Everett, WA office.

## What they're looking for

- Ph.D. in physics, electrical engineering, aerospace engineering, or a related discipline, with a focus on plasma science, diagnostics, or high-vacuum instrumentation
- 3+ years of relevant experience with plasma systems, advanced laboratory environments, high-vacuum systems, pulsed-power systems, or complex experimental hardware
- Hands-on experience designing, building, calibrating, troubleshooting, or operating plasma diagnostics such as interferometry, spectroscopy, Langmuir probes, magnetic coils, electrostatic diagnostics, optical diagnostics, or related measurement systems
- Demonstrated ability to independently lead complex technical workstreams while collaborating with cross-functional stakeholders across science and engineering teams

Tags: Science