Sodium Test Engineer

Oklo•Idaho Falls, ID

59d•$90,000 - $150,000•Hybrid

About The Position

Oklo is transforming the future of energy, and we are looking for a Sodium Test Engineer to develop and operate test platforms that support advanced nuclear technology development. In this role, you will lead or support the design, fabrication, commissioning, operation, and modification of experimental systems involving molten sodium with travel up to 10%. The ideal candidate has direct knowledge or hands-on experience with molten sodium, or other molten alkali-metal systems. This experience may include system design, laboratory research, test operations, equipment development, chemistry control, component testing, maintenance, or decommissioning. The successful candidate will understand the unique operating, materials, cleanliness, containment, and safety considerations associated with reactive liquid metals.

Requirements

Bachelor’s degree in mechanical engineering, chemical engineering, nuclear engineering, materials engineering, or a related technical field.
Demonstrated knowledge of or experience with molten sodium or another molten alkali metal.
Experience developing test plans, test procedures, operating procedures, engineering calculations, or technical reports.
Ability to read and interpret piping and instrumentation diagrams, process-flow diagrams, equipment drawings, electrical schematics, instrument diagrams, and vendor documentation.
Ability to lift, move, and position objects weighing up to 30 pounds, with or without reasonable accommodation.

Nice To Haves

Direct hands-on experience operating molten-sodium test loops or experimental sodium systems.
Experience with high-temperature piping, heat tracing, insulation, freeze protection, thermal expansion, and temperature-control systems.
Familiarity with ASME B31.3, ASME Boiler and Pressure Vessel Code, or other applicable piping and pressure-equipment standards.
Familiarity with ASME NQA-1 requirements, particularly design control, procurement, inspection, calibration, test control, document control, and configuration management.
Advanced degree in mechanical, chemical, nuclear, materials, or a related engineering discipline.

Responsibilities

Translate engineering data requirements into executable tests.
Prepare test plans, laboratory procedures, work instructions, equipment requirements, inspection points, and data-collection methods for materials-characterization activities.
Lead or support test setup, readiness reviews, equipment checkout, specimen installation, startup, monitoring, shutdown, and post-test activities.
Review raw data for completeness and validity, identify anomalies, assess measurement uncertainty, calculate material properties, evaluate repeatability, and compare results with expected behavior or established requirements.
Prepare test reports, materials evaluations, failure-analysis reports, engineering memos, data summaries, and recommendations. Clearly document methods, assumptions, deviations, results, uncertainties, and conclusions.
Help establish and improve materials-laboratory capabilities, equipment-maintenance programs, calibration practices, specimen-storage methods, test templates, and safe operating procedures.