Senior Core Thermal-Hydraulics Engineer

TerraPower LLC in Bellevue, WA seeks a Principal Engineer to develop and apply thermal-hydraulic methods for reactor core analysis and validate with first-principles calculations. You will work with multidisciplinary teams on design challenges, testing programs, and reporting findings to leadership.

The role emphasizes independent technical judgment, mentoring, and technical leadership across systems. Strong writing and communication skills are essential in a high‑trust, safety‑critical