Site Design Engineering Mechanical Engineer

About the role

The Site Design Engineering Mechanical Engineer will perform design follow activities and oversight as part of the mechanical engineering design team for the Natrium Demonstration Project, TerraPower's groundbreaking advanced sodium-cooled fast reactor plant under construction near Kemmerer, Wyoming. This role is critical in ensuring that engineering support aligns with construction, testing, startup, and turnover activities while maintaining compliance with the design and licensing basis, nuclear safety standards, and project requirements. This position is based onsite at the Natrium Demonstration Project in Kemmerer, Wyoming, and reports to the Site Design Engineering Manager.

Responsibilities

• Perform design follow and oversight of mechanical/systems/piping activities in direct support of construction, testing, system startup, commissioning, and turnover to operations. This includes technical review, approval, and issuance of drawing and design deliverables to ensure they conform to the approved design basis, licensing commitments, and regulatory requirements.
• Serve as key onsite engineering interface for mechanical/systems/piping issues with key stakeholders, including construction management, field engineering teams, licensing and regulatory affairs, quality assurance, the utility owner/operator, procurement, suppliers, and external regulators (e.g., NRC). Resolve technical and engineering issues arising in the field efficiently and collaboratively.
• Disposition design changes, nonconformances, and requests for information for all TerraPower division of responsibility deliverables for the Natrium Demo project.
• Manage priority conflicts when competing demands emerge across engineering tasks. Partner with other team leads to resolve issues at the working level; escalate