Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. As a principal-level scientist, you will integrate cross-functional input from plasma physics, controls, machine operations, electrical engineering, and data science to mature RF pre-ionization from experimental concept into reliable platform capability.