Senior Mechanical Design Engineer - Reactor Module

Role overview Lead mechanical design for major assemblies and components within an advanced reactor module, taking hardware from early concepts through detailed design and fabrication readiness. The work spans structural, thermal, manufacturing, and system integration constraints, with close coordination across engineering disciplines and external design and fabrication specialists. The role level will reflect experience.

Responsibilities - Own the design of complex mechanical components and assemblies, including large weldments, supports, and coolant flow elements. - Translate system and functional needs into 3D models, drawings, and bills of materials using controlled design processes. - Coordinate with analysis teams on structural, thermal, fatigue, and safety evaluations; use their findings to improve designs. - Lead design reviews and resolve design issues while accounting for applicable safety requirements and industry codes. - Assess manufacturability, assembly, tolerances, and fabrication approaches, and work with production partners to refine designs. - Maintain clear design documentation, including requirements, rationale, review outcomes, and system-level explanations.

Requirements - Bachelor’s degree or higher in mechanical engineering or a related discipline. - At least eight years of mechanical or structural design experience in fields such as aerospace, automotive, energy, or industrial equipment. - Proficiency in 3D CAD for parts, large assemblies, and detailed drawings; experience with a tool such as NX, CATIA, or SolidWorks. - Experience managing design data with a PDM or PLM system. - Strong knowledge of design for manufacturing and assembly, tolerance stack-up, and GD&T under ASME Y14.5 or a comparable standard. - Working knowledge of metals, material selection, manufacturing processes, and fabrication, plus the ability to collaborate across engineering teams and document work clearly.

Nice to have - Experience designing large weldments and mechanical joints. - Familiarity with the ASME Boiler and Pressure Vessel Code, particularly Sections III or VIII.

Benefits and work setup - The work may involve access to information controlled under U.S. export laws; eligibility may therefore be limited to applicants who qualify as U.S. persons.