Remote Core Mechanical Design Engineer – Reactor Components

Oklo; Santa Clara (CA); Hybrid; USD 120,000 - 165,000; Full time

Benefits offered by this job

Flexible time off

Equity

401k

Health insurance

FSA

Flexible work hours

Other benefits

Job summary

Oklo is seeking a Core Mechanical Design Engineer in Santa Clara, CA or remote. You will design core assemblies for advanced reactors, take concepts through final design, and refine for manufacturability with the Fuel Fabrication team.

This role involves documentation, design reviews, and close collaboration with analysts and suppliers. You should have 3–10 years in mechanical design, a Bachelor’s in Mechanical Engineering, and hands-on CAD experience (NX/CATIA/SolidWorks) with PLM tools.

Qualifications

• Bachelor’s or higher degree in Mechanical Engineering or related field.
• 3–10 years of mechanical or structural design experience in relevant industries.
• Proficiency with 3D CAD software and creating detailed drawings.
• Experience with CAD version control and PLM tools.
• Solid understanding of DFM, DFA, and tolerance analysis.
• Ability to apply GD&T per ASME Y14.5-2018 to drawings.
• Strong written and verbal communication, capable of documenting engineering work clearly.
• Comfortable collaborating with external manufacturers and consultants.

Responsibilities

• Design core assemblies and components from concept to final design.
• Develop documentation including drawings, specs, and design basis documents.
• Conduct design reviews and provide technical feedback.
• Perform manufacturability reviews, tolerance studies, and DFA/DFM assessments.
• Generate 3D CAD models and 2D drawings, manage BOMs in PLM systems.
• Coordinate with analysis teams for thermal, structural, fatigue, and safety support.
• Collaborate with fabrication teams to refine designs for manufacturability.
• Contribute to process improvements and design standards within Oklo.

Skills

3D CAD modeling

DFM / DFA

GD&T (ASME Y14.5)

Cross-functional collaboration

Technical documentation

Strong communication

Design for high-temperature or safety

Python scripting (plus)

Education

Bachelor’s or higher in Mechanical Engineering

Tools

Siemens NX

CATIA

SolidWorks

Teamcenter

SolidWorks PDM

Windchill

Job description

Oklo is seeking a Core Mechanical Design Engineer in Santa Clara, CA or remote. You will design core assemblies for advanced reactors, take concepts through final design, and refine for manufacturability with the Fuel Fabrication team.

This role involves documentation, design reviews, and close collaboration with analysts and suppliers. You should have 3–10 years in mechanical design, a Bachelor’s in Mechanical Engineering, and hands-on CAD experience (NX/CATIA/SolidWorks) with PLM tools.