Job Description

Position Overview
System One is seeking a highly motivated Test Engineer – Alkali Metal Testing to support advanced reactor testing operations for a leading clean energy client. This on-site role in Everett, WA will support engineering and full-scale laboratory testing activities, with a focus on high-temperature liquid sodium and molten salt systems.

The Test Engineer will assist with experimental design, test execution, data acquisition, and post-test analysis in support of next-generation reactor development programs.
Key Responsibilities
• Collaborate with internal stakeholders to translate conceptual requirements into actionable test specifications, including instrumentation strategies and success criteria.
• Support experimental design, operation, repair, and analysis of tests focused on high-temperature liquid sodium systems.
• Coordinate cross-functional efforts related to test fixture design, control system integration, and laboratory space planning...

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